Chargers for automotive batteries: how to make it yourself - machine

Charger (memory) for the battery is a thing needed to any car owner. It is sold in all stores specializing in the sale of automated roads. However, the cost of the memory is able to significantly empty your wallet.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

In addition, you will have to go from time to time to a service center for its prevention. Therefore, it is best to collect the design itself. How to make a car charger with your own hands - in this article.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Causes and signs that the battery needs charging

It is believed that the battery may be discharged in the following cases:

  • with a big worn;
  • in violation of the rules of operation of the AKB;
  • long standing car in winter;
  • Riding with frequent stops when the battery does not have time to fully recharge;
  • Do not turn off the electrical instruments of the machine during its parking;
  • failure of the wiring and electrical equipment of the car;
  • The presence of leaks on electrical caps.
  • The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.
  • Symptoms indicating the discharge of the battery are:
  • When you start the ignition of the bulb on the panel or not shine, or fade up;
  • With the main state of the motor, the starter remains fixed;
  • The emergence of foreign sounds in the field of starter;
  • The car does not respond to the inclusion of ignition.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

If you find one of the similar "symptoms", you need to check the status of the battery terminals. It may require cleaning and pursing.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

In winter, you can get an acb into heated premises so that it warms it, or try to "see" from another car. If all these methods do not give results, then the only output is to apply the memory.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Operating principle

Consider the scheme of car batteries charger with their own hands.

By type of execution in such devices, a lead-acid battery is used, consisting of six sequentially connected batteries. Rated voltage of each component - 2.2V.

Externally, the battery links have the form of lattice lead plates coated with active material and immersed in an electrolytic solution. The electrolyte is a sulfuric acid crushed by distilled water.

Each plate has two poles from each other: a positive (with lead dioxide coating) and a negative (sponge-covered lead). The body of the element is usually polypropylene.

  1. The connection to the load accumulator contributes to the beginning of the chemical reaction of the active material with electrolytic fluid, the result of which is the production of electric current.

When charging the battery, the reverse action occurs. The process of transformation of lead and water sulfate leads to an increase in the density of electrolyte and the restoration of the charge value.

Charging Akb at home

If you find that the battery is discharged on your car, and there is no one hundred and auto shops - it's not worth upset.

You can use the available tools, make the charger for the battery of the machine with your own hands. There are several options.

The first option is the elementary design of 6B and 12V, consisting of a downstream transformer and a powerful rectifier. Purpose - charging lead battles with a capacity of 10 - 120 A / h.

  • Another kind of simple charging automobile device is collected from an ordinary laptop power unit.

At the same time, it is necessary to include in the charge chain limiting resistance in the form of a car electric bulb.

Third option - a fixture with a smooth adjustment of the current. In the manufacture it is a little harder. The scarce details also do not need. Such a device can be used to charge batteries with an operating voltage of 12V and a capacity of up to 120 a / h.

A person's own assembly has a number of advantages. The main one is to facilitate the repair of the car charger with their own hands, because its structural features are already familiar.

  1. Taking independently manufacturing charging for the battery, it is important to accurately follow the safety regulations and use individual means of protection in the form of gloves and a rubber rug.
  2. It is also desirable to apply a special tool with an electrically insulating coating.

Stock Foto Car charger with their own hands

Please make repost;)

A source: https://avtoadvice.ru/avtomobilnoe-zaryadnoe-ustrojstvo-svoimi-rukami/

Charging for acb with your own hands - the simplest scheme, part 2. - Drive2

We continue the theme www.drive2.ru/b/2181752/, with a description of step-by-step making of our charging. Step 4: "Rectifying" scheme. We have previously decided on the coil, the case and cooling has already been determined, but the fact is that the coil or the transformer gives an alternating current, for its conversion to constant, the diagram of a diode "bridge" or a ready-made diode bridge is maintained from 30a and above.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

An example of a diode bridge.

But on the market prices for diode bridges, though small but we will use more accessible details. Made on the basis of the "Soviet" diodes that are in any body of radio equipment of those times, in any case they are more reliable, and more resistant to overheating.

  • Here is a list of suitable diodes for our needs.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

  1. I found D243, I just fits.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

  • Next, with the help of our friends,

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

  1. We cut any aluminum profile for the manufacture of cooling radiators.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

  • Connect the elements of each other according to the scheme,

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

To comply with the polarity and facilitate the assembly on each diode there is a label (drawing), which can be focused. It turned out so, already marked black and red where the polarity should be at the exit, plus red and minus black.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

  1. Now all these elements are placed in the housing, by observing the distance, and according to the scheme, connect to the transformer (coil).

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Diodes view

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

View from the cooling system.

In fact, this is the ready simplest power supply without protection. It has a cooling system that will prevent our block and parts from overheating. But it does not have protection against short circuit and work with it needs to be controlled by a separate measuring instrument.

Step 5: The simplest scheme of the most affordable charger.

To create, we need any simplest power supply from 15V and higher. Power supplies are also suitable for laptop and household appliances. So as we have already manufactured such a block, consider the connection schemes to the automotive battery for charging. The most common.

with our power supply

With a power supply from a laptop.

  1. As you can see an additional chain element, this car light is 12V or several pieces.

You can say the light bulb will be an indicator of work, charging, and a small protection of power supplies from failure. Since the automotive battery in essence has low density and power supplies that are not intended for this may simply fail. Also, if it suddenly gets a battery with closed banks about which will signal a very bright glow.

According to this scheme, I connected acb through these light bulbs,

On a little discharged battery

  • According to this scheme, such a charging that I collected gives up to 3 amps.
  1. When charging calmly gives 1 amp, which favorably affects the battery, while it is not bad for low currents.
  • When charging the battery, you need to unscrew the plugs on the banks on the battery.

Minus such a scheme that the charging process must be controlled by a separate measuring device so that there is no recharge on the battery, that is, when it is reached on terminals to ~ 14.4V or boiling in banks, you need to disable everything.

In the following themes, we consider the simplest current adjustment schemes - we will make your own, consider how to connect the measurement instruments to the ammeter voltmeter. It can be said a little complicating the design that everyone does not have experience on electronics.

Well, like that of all the world and good, add comments if there is something to tell or take part, I will not refuse :).

A source: https://www.drive2.ru/b/2199299/

Scheme of a simple charger for acb

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

  • Hello everyone, I did a lot of chargers for various batteries for my practice, but recently noticed that despite the huge base of the schemes on the Internet, people want to see a simple scheme of a charger for car batteries from very affordable components, so I decided Transfer this idea to life. The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.
  • This scheme was removed from the radio journal, which became very popular lately, in essence it is a thyristor voltage regulator, many probably will condemn my decision to use this particular scheme, because it does not have a current control unit, protection and many other buns that are equipped with Modern chargers.
  • You are certainly right, but it was this scheme that was repeated by radio amateurs, including me many times and has proven itself from the best side. The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process. The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process. The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.
  • So, about the scheme; It differs from the usual linear schemes, pay attention to the transistors Q1 and Q2, the pulse generator is assembled on their base, that is, the battery is essentially charged with current pulses, you can make sure to connect the oscilloscope, this mode of operation has many advantages. The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.
  • The first of these is that the power element of the scheme does not work in linear, and in key mode, therefore, it will be heightened less, and the pulse charge may be useful for the battery consultation, which means such charging in theory can restore the AKB.

The impulse generator is assembled on a low-power complementary pair, you can use literally any low-power transistors, for example, our CT 361 and CT 315. The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.The output current can reach up to 10 amps, therefore it is possible to effectively charge batteries with a capacity of up to 100 ampears.

The diode bridge is needed with a reserve, I advise you to use the amp diodes by 15-20, I put the ready-made assembly of 30 amps. The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.The network reduction transformer must provide an output voltage of at least 15 or 16 volts and the corresponding current. The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

It is important to remember - an effective charge current for car lead-acid batteries is the tenth of the battery capacity, for example, a battery for 60 ampears. An effective charge current should be in the region of 6 amps, etc.

In my version, a ready-made transformer from the uninterruptible power supply was used, for me this is a good option. I was lucky and the windings of the transformer were copper, and not aluminum as it happens with budget universed. The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

I rummaged in the old trash I managed to find only one thyristor, but unfortunately it turned out to be not working, in theory you can collect an analogue of a thyristor, but I decided to use the usual transistor of the MJE13009 Empire type and everything worked fine.

Redid on the transistor

The circuit board turned out quite compact, by the way, the source file board is available for download at the end of the article. Transistors and diode bridge are installed on the radiator, the design is also desirable to supplement the cooler. ИThe ndikators put the shooter, ammeter per amper, but after replacing the shunt, it began to display a current of up to 10 amps, a voltmeter by 15 volts.

I wanted to collect the whole thing in the case from the computer's power unit, but at the moment I work on several projects and there is simply no time, but in the future I will definitely do the manufacture of the hull.

Enter email and get letters with new crafts.

The output voltage is adjustable from pure zero. The charging process of automotive batteries occurs as follows, turn on the charger to the network and the rotation of the variable resistor we achieve at the output 14 and 14.4 volts of the output voltage.

  1. This is a voltage of a fully charged car battery, then you connect charging to the battery without forgetting to observe polarity, that is, plus to the plus, and minus to minus.
  2. As the battery is charged, the current will decline and at the end of the process the value will be close to zero, this charge can be considered completed.
  3. It is bad that the scheme is devoid of protection against short circuits, only a fuse can save, there is also no function of protection against meals, but all this can be completed and later, there would be a desire))).
  4. Facility in the .lay format; download…
  5. Author; Aka Kasyan

A source: https: //xn--100-j4dau4ec0ao.xn--p1ai/sxema-prostogo-zaryadnogo-ustrojstva-dlya-akb/

Charger for car battery do it yourself

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Little battery theory

Any battery (AKB) is an electrical energy drive. When the voltage is applied to it, the energy accumulates, thanks to chemical changes inside the battery.

When the consumer is connected, the opposite process takes place: the reverse chemical change creates a voltage on the terminals of the device, the current flows through the load.

Thus, to get a voltage from the battery, it first needs to be "put", i.e. to charge the battery.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Almost any car has its own generator, which, when the engine running, provides power supply to the on-board equipment and charges the battery, replete energy spent on the motor start.

But in some cases (frequent or heavy launch of the engine, short trips, etc.) the battery energy does not have time to recover, the battery is gradually discharged.

Exit from the created position one is charging an external charger.

How to find out the condition of the battery

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

The optimal and reliable method of checking the state of the battery is the measurement of the voltage on it by the usual tester. At air temperature of about 20 degrees Degree of charging degree On the terminals disconnected from the load (!) The battery is as follows:

  • 12.6 ... 12.7 V - fully charged;
  • 12.3 ... 12.4 in - 75%;
  • 12.0 ... 12.1 B - 50%;
  • 11.8 ... 11.9 in - 25%;
  • 11.6 ... 11.7 V - discharged;
  • below 11.6 V - deep discharge.

It should be noted that the voltage is 10.6 volts - critical. If it drops below, then the "car battery" (especially non-listening) fails.

Proper charging

There are two methods for charging the automotive battery - constant voltage and direct current. Everyone has their own Features and disadvantages:

  • The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.Charging a constant voltage is suitable for the recovery of the charge of not fully discharged batteries, the voltage on the terminals of which is not lower than 12.3 V. The process is as follows: the battery terminals are connected with a voltage of 14.2-14.7 V. The end of the process controls the current consumption: when it falls to zero, charging is considered to be finished. The lack of this method is possible a large initial charging current; The stronger the battery is discharged, the higher the current. The advantages of the method are obvious - you do not need to constantly adjust the charging current, the battery does not threaten the recharge if you forget about it.
  • Charging a constant current is the most common and reliable way. In this mode, it gives a constant current equal to 1/10 battery capacity. The end of the charging process is determined by the voltage on the battery - when it reaches 14.7 V, charge the battery is stopped. The lack of such a method - the battery can be spoiled without removing in time with charging.

How to make a lawn mower do it yourself

Homemade charging for batteries

Collect your own hand charger for the car battery is real and not particularly difficult. To do this, you need to have initial knowledge of electrical engineering and be able to keep a soldering iron in your hands.

Simple device on 6 and 12 V

Such a scheme is the most elementary and budget. With this memory, you can qualitatively charge any lead battery with an operating voltage of 12 or 6 V and an electrical capacity from 10 to 120 a / h.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

The device consists of a lowering transformer T1 and a powerful rectifier collected on diodes VD2-VD5.

The charging current is made by the S2-S5 switches, with which the C1-C4 capacitors are connected to the transformer power supply circuit.

Due to the multiple "weight" of each switch, various combinations allow stepwise to adjust the charging current in the range of 1-15 A with increments of 1 A. This is sufficient to select the optimal charging current.

For example, if a current of 5 A is required, then you will need to enable S4 and S2 tumbler. The closed S5, S3 and S2 will be given in the amount of 11 A. to control the voltage on the battery serves the PU1 voltmeter, followed by the charging current using the PA1 ammeter.

In the design you can use any power transformer with a capacity of about 300 W, including homemade. It must produce a 22-24 voltage on the secondary winding at a current to 10-15 A.

In place VD2-VD5, any rectifying diodes are suitable, withstanding direct current of at least 10 A and the reverse voltage not lower than 40 V. are suitable D214 or D242.

They should be installed through insulating gaskets on the radiator with an area of ​​scattering at least 300 cm.

C2-C5 capacitors must necessarily be non-polar paper with an operating voltage not lower than 300 V. Suitable, for example, MBCH, KBG-MN, MBGO, IBD, IBM, IBGC.

Such capacitors having the shape of cubes were widely used as phase shifting for electromotors of household appliances. The PU1 is used by the M5-2 type DC voltmeter with a measurement limit of 30 V.

PA1 - ammeter of the same type with a measurement limit of 30 A.

The scheme is simple, if you collect it out of serviceable parts, it does not need it in establishing. This device is suitable for charging scest batteries, but the "weight" of each of the S2-S5 switches will be different. Therefore, to navigate in the charging currents will have to ammeter.

With smooth adjustment current

According to this scheme, collect the charger for the battery of the car with your own hands is more difficult, but it is possible in repetition and also does not contain scarce details. With it, it is permissible to charge 12-volt batteries with a capacity of up to 120 a / h, the charge current is smoothly adjustable.

Production of potatoes for a motoblock with their own hands

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Charging the battery is performed by a pulse current, a thyristor is used as an adjusting element. In addition to the smooth adjustment knob, this design has a mode switch, when the charging current is turned on twice.

Charging mode is monitored visually by the direction of RA1. R1 resistor homemade, made of nichrome or copper wire with a diameter of at least 0.8 mm. It serves as a current limiter. Lamp EL1 - indicator. In its place, any small-sized indicator lamp with a voltage of 24-36 V.

A lowering transformer can be applied with output voltage over the secondary winding 18-24 V at a current to 15 A.

If the appropriate device was not at hand, it can be done from any network transformer with a capacity of 250-300 W.

To do this, with a transformer, all windings are clarified, except for the network, and wind one secondary winding with any insulated wire with a cross section of 6 mm. sq. The number of turns in the winding is 42.

Thyristor VD2 can be any of the KU202 series with letters in-N. It is installed on the radiator with an area of ​​dissipation of at least 200 cm. Power installation of the device is made by wires of minimal length and with a cross section of at least 4 mm. sq. In place VD1, any rectifying diode with a reverse voltage is not lower than 20 V and withstand current of at least 200 mA.

The device is established to calibrate the ammeter RA1. You can do this by connecting several 12-volt lamps with a total capacity of up to 250 W, controlling the current according to a well-serviceable reference ammeter.

From a computer unit

To assemble this simple charger with your own hands, you will need a regular power supply from the old ATH computer and knowledge of radio engineering. But but the characteristics of the device will be decent. With it, they charge the battery to 10 A, adjusting the current and the charge voltage. The only condition - the BP is desirable on the TL494 controller.

For creating Car charging with your own hands from the power supply of the computer We will have to collect the scheme shown in the figure.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Step-by-step necessary for the revision of the operation Will look like this:

  1. Bite all the wires of the power tires, with the exception of yellow and black.
  2. To combine the yellow and separate black wires among themselves - it will be, respectively, "+" and "-" memory (see scheme).
  3. Out all the tracks leading to the conclusions 1, 14, 15 and 16 of the TL494 controller.
  4. Install the variables of the resistors with a nominal value of 10 and 4.4 kΩ on the cover of BP - these are the voltage adjustment organs and charging current, respectively.
  5. Attachment to assemble the scheme shown in the figure above.

How to make your own trailer for motoblock

If the installation is performed correctly, then the improvement is completed. It remains to equip a new voice with a voltmeter, an ammeter and wires with "crocodiles" to connect to the battery.

In the design it is possible to use any variables and permanent resistors, in addition to the current (bottom according to the scheme with a face value of 0.1 Ohm). Its dissipated power is at least 10 W.

You can make this resistor yourself from the nichrome or copper wire of the appropriate length, but really find and ready, for example, the shunt from the Chinese digital tester by 10 A or the C5-16MV resistor.

Another option is two 5WR2J resistors turned on in parallel. Such resistors are in pulsed power supplies PC or TVs.

What you need to know when charging the battery

Chargeing a car battery, it is important to observe a number of rules. It will help you Extend battery life and save your health:

  1. The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.All lead batteries charge the current not higher than one tenth of the battery capacity. If you have a car in the car with a capacity of 60 a / h, then the calculation of the charging current looks like this: 60/10 = 6 A.
  2. In the process of charging, explosive gases may be allocated. This is especially true of serviced batteries. There is enough one spark that the hydrogen accumulated in the garage or other room exploded. Therefore, you need to charge batteries in a well-ventilated room or on the balcony.
  3. Charging the battery is accompanied by heat release, so constantly monitor the accommodation temperature of the battery to the touch. If the battery was noticeably heated, then immediately reduce the charging current or stop charging at all.
  4. If the battery is served, constantly monitor the electrolyte level in banks and its density. In the process of charge, the electrolyte "rolls out", and the density increases. If the plates in the bank denied or the density rose above 1.29, and the charging is not yet completed, add distilled water to the electrolyte.
  5. Do not recharge the battery. Maximum voltage on it with a connected memory - 14.7 V.
  6. Do not allow a deep discharge of the battery, recharge it periodically. If the battery voltage at disabled load drops below 10.7, the battery will have to be thrown away.

The question of creating a simple charger for the battery with your own hands is clarified. Everything is quite simple, it remains to stock the necessary tool and you can safely begin to work.

A source: https://pochini.guru/tehnika/zaryAdnoe-ustroystvo.

Charger for car battery do it yourself

Car owners are often faced with the problem of battery discharge. If this happens away from one hundred, auto-shops and gas stations, you can independently make a battery charging device from the available parts. Consider how to make a charger for a car battery with your own hands, possessing minimal knowledge of electrical work.

Such a device is better to apply only in critical situations. However, if you are familiar with the electrical engineering, the rules of electrical and fire safety, have the skills of electrogenation and installation work, the homemade charger may well replace the factory block.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Causes and signs of discharge acb

During the operation of the battery during the operation of the engine there is a permanent recipient of the AKB from the car generator. You can check the charge process by connecting the multimeter to the battery terminals when the engine is running, measuring the charging voltage of the car battery. The charge is considered normal if the voltage on the terminals is from 13.5 to 14.5 volts.

For a complete charge, you need to drive on a car at least 30 kilometers or about half an hour in the city's city rhythm.

The voltage of a normally charged battery during the parking lot should be at least 12.5 volts. In the event that the voltage is less than 11.5 volts, the engine motor may not start during the start. Reasons for the discharge of the battery:

  • Akb has a significant wear (more than 5 years of operation);
  • Incorrect operation of the battery, leading to sulfate plates;
  • long-term parking vehicle, especially during the cold season;
  • City rhythm of the car movement with frequent stops, when the battery does not have time to charge enough;
  • Invisible electrical appliances of the car during parking;
  • Damage to wiring and car equipment;
  • Leaks for electrical caps.
  • Many car owners in a set of on-board tools do not have means for measuring the battery voltage (voltmeter, multimeter, probe, scanner). In this case, you can be guided by indirect signs of the discharge of the battery:
  • dull light bulbs on the dashboard when the ignition is turned on;
  • lack of starter rotation when starting the engine;
  • Loud clicks in the starter area, moving the lights on the dashboard at startup;
  • The complete absence of a car reaction to turn on the ignition.

When the listed features appear, first of all, it is necessary to check the terminals of the AKB, if necessary, clean and clamp them. In the cold season, you can try to put a battery at a warm room for a while and warm it.

You can try to "searcate" cars from another car. If these methods do not help or are impossible, you have to use the charger.

Universal charger with your own hands. Video:

Most devices are charged with permanent or pulse currents. How many amps need to charge a car battery? The charge current is chosen equal to one tenth of the battery capacity. With a capacity of 100 a * h, the charging current of the car battery will be 10 amps. Akb will have to charge about 10 hours to a complete charge.

Charging the battery auto large currents can lead to the sulfate process. To avoid this, it is better to produce battery charge with small currents, but for a longer time.

Pulse devices significantly reduce the effect of sulfate. Some pulse chargers have a desulfation mode that allows you to restore the performance of the AKB. It consists in a consistent charge-discharge by pulsed currents according to a special algorithm.

After charging the battery, you can not allow a reload. It can lead to the boiling of electrolyte, sulfate plates. It is necessary that the device has its own control system, measurement of parameters and emergency shutdown.

Starting from the 2000s on cars began to install special types of batteries: AGM and gels. Charging the automotive battery of such types is different from the usual mode.

As a rule, he is three-stage. Until a certain level, the charge is a long current. Then the current decreases. The final charge occurs even less impulse currents.

Charging a car battery at home

Often in a driver's practice there is a situation when, putting a car near the house in the evening, in the morning it is found that the battery is discharged. What can be done in such a situation when there is no soldering iron at hand, no details, and you need to start?

Usually, a small container remains on the battery, it is simply necessary to "pull up" a bit so that the charge is enough to start the engine. In this case, a power supply from some household or office equipment can help, such as a laptop.

Charging from the laptop power supply

Voltage that produces a laptop power supply usually 19 volts, current up to 10 amps. This is enough to charge the battery. But it is impossible to directly connect the power supply to the battery.

It is necessary in series in charge circuit to include restricting resistance. As it, you can take a car electric bottle, better for lighting the cabin.

It can be purchased at the nearest gas station.

Usually the average pin connector is positive. Light bulb is connected to it. The second output of the bulb is connected + acb.

The negative terminal connects to the negative output of the power supply. On the power supply, there is usually a slide point showing the polarity of the connector. Charging clock pairs like this method to start the engine.

Scheme of a simple charger for a car battery.

Fig.1

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Household net

A more extreme charging method - directly from the household network. It is used only in a critical situation using maximum electrical safety measures. This will require a lighting lamp (not energy saving).

You can use an electric stitch instead. It is also necessary to purchase a rectifier diode. Such a diode can be "borrow" from a faulty energy-saving lamp. At this time, the tension supplied to the apartment is better to de-energize. The scheme is presented in the figure.

Fig.2

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

The charge current at the power of a 100 watt lamp will be approximately 0.5 A. per night, the battery will recharge only a few amps hours, but it may be enough to start. If you connect in parallel three lamps, then the battery charges three times more.

If instead of the light bulb connect the electric stove (on the lowest power), the charge time will significantly decrease, but it is very dangerous. In addition, a diode can break through, then the battery is possible. Charge methods from 220 V are dangerous.

Charging for car batteries do it yourself. Video:

Before making a charger for a car battery, you should evaluate your experience of electrical work, knowledge of electrical engineering, based on this, proceed to the selection of the charger circuit for the car battery.

You can see in the garage, perhaps there are old devices or blocks. The device is suitable for the power supply from the old computer. It has almost everything:

  • 220 V connector;
  • power switch;
  • Electroscheme;
  • cooling Fan;
  • Connection conclusions.

Voltages on it are standard: +5 V, -12 V and +12 volts. To charge the battery, it is better to use the +12 volt wire, 2 amps. The output voltage must be raised to +14.5 - +15.0 volts. It is usually possible to do this by changing the resistance rates in the feedback circuit (about 1 kiloma).

This can be done experimental by either fighting on the Internet and finding a suitable power supply scheme.

The restrictive resistance can not be installed, the electronic circuit independently adjusts the charge current within 2 amps. It is easy to calculate that for the complete charge of the battery 50 a * h is required about a day. Appearance of the device.

Fig. 3.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

You can choose or buy a network transformer on the flea market with a secondary winding voltage from 15 to 30 volts. Such used in old TVs.

Transformer devices

The simplest diagram of the device with a transformer.

Fig.4

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Its disadvantage is the need to limit current in the output chain and the associated high power losses and heating resistors. Therefore, condensers are used to adjust the current.

Fig.5

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

Theoretically, having calculated the rating of the condenser, you can not use the power transformer as shown in the diagram.

Fig.6.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

  1. When buying capacitors, you should choose the corresponding rating with a voltage of 400 V and more.
  2. In practice, larger use was obtained with current control devices.
  3. Fig.7.

The disadvantages of the homemade device include a primitive device that eliminates the automatic shutdown of the device when the maximum charge battery is reached. Because of this, it becomes necessary to constantly monitor the process.

You can select the schemes of pulse homemade charger for the car battery. They are more complex circuitry, require certain skills when installing. Therefore, if you do not have special skills, it is better to buy a factory block.

Pulse chargers

Pulse chargers have a number of advantages:

What signaling with autorun is better to put on the car? - Here is more useful information.

  • high efficiency, as a result, less power consumption and heating during operation;
  • Smaller dimensions and weight compared to transformer devices;
  • the ability to automate the control of the main charge parameters;
  • Great manufacturability in manufacturing.
  • The main disadvantages of impulse chargers:
  • high probability of failure of powerful transistors;
  • the need for deep knowledge in the field of electrical engineering to configure devices;
  • The absence of electroplating with a supply voltage reduces the degree of electrical safety;
  • A large level of electromagnetic interference (they cannot be included in close proximity to radio devices, mobile technicians).
  1. One of the most simple variants of the electrical circuit is shown in Figure 8.
  2. You will be interested in this article - how to use a dynamometric key for the car?

The principle of action of impulse devices is based on the conversion of an alternating voltage of the household electrical power system into constant with the VD8 diode assembly. Then the constant voltage is converted to high frequency pulses and amplitude. The pulse transformer T1 again converts the signal to a constant voltage that the battery charges.

Since the reverse transformation is conducted at high frequency, the transformer dimensions are significantly less. Feedback required to control the charge parameters is provided by the U1 optocon.

Despite the seeming complexity of the device, the block starts working at the correct assembly without additional adjustment. Such a device provides a charge current up to 10 amps.

General recommendations

When charging the battery using a self-made device, it is necessary:

  • The device and battery are located on a tok-conductive surface;
  • comply with electrical safety requirements (use gloves, rubber rug, an instrument with an electrical insulating coating);
  • Do not leave the enabled charger without control, monitor the voltage and temperature of the battery, charging current.

A source: https://autoot.ru/zaryAdnoe-ustroystvo-avtomobilnogo-akkumulyatora-svoimi-rukami.html.

11 examples: Schemes for a homemade charger for a car battery

The analysis of more than 11 schemes for making your own hands at home, new schemes 2017 and 2018, how to collect a fundamental scheme for an hour.

To understand whether you have the necessary information about batteries and chargers for them, you should pass a small test:

  1. What is the main reasons, the car battery is discharged on the road?

A) the motorist left the vehicle and forgot to turn off the headlights.

B) the battery is too heated under the influence of sunlight.

  1. Can the battery fail if the car does not use for a long time (it is in the garage without launch)?

A) with a duty, a simple battery will fail.

B) No, the battery will not deteriorate, it will only be necessary to charge and it will function again.

  1. Which current source is used to recharge the battery?

A) There is only one option - a network with a voltage of 220 volts.

B) network for 180 volts.

  1. Be sure to remove the battery when connecting a self-made device?

A) It is advisable to dismantle the battery from the installed place, otherwise the risk will damage the electronics by the intake of a large voltage.

B) it is not necessary to remove the battery from the installed place.

  1. If you confuse "minus" and "plus" when connecting the memory, then the battery will fail?

A) Yes, when improperly connected, the equipment is scorified.

B) Charger simply will not turn on, you will need to move the necessary contacts to the required places.

Answers:

  1. A) No headlights when stopped and minus temperature are the most common reasons for the battery discharge on the road.
  2. A) Akb fails if it is not necessary to recharge it for a simple car.
  3. A) to recharge the network voltage in 220 V.
  4. A) It is not desirable to charge the battery with a homemade device if it is not removed from the car.
  5. A) should not be confused by the terminals, otherwise the homemade apparatus is overrigent.

The battery on the vehicle requires periodic charging.

The reasons for the discharge can be different - starting from the headlights that the owner forgot to turn off, and to negative temperatures in the winter on the street. To feed the battery you need a good charger. Such a device in large varieties is presented in auto parts stores.

But if there is no possibility or the desire to buy, then you can make it yourself at home. There is also a large number of schemes - they are preferably studied to choose the most suitable option.

Definition: The charger for the car is intended to transmit an electric current with a given voltage directly to the battery.

  1. Will it take some additional measures before you start charging the battery on your car? - Yes, you will need to clean the terminals, since acid deposits appear during operation. The contacts need to be cleaned very well to come to the current without difficulties to battery. Sometimes motorists use lubrication to handle terminals, it should also be removed.
  2. What to wipe the terminals of the charger? - Specialized tool can be bought in the store or prepare yourself. As an independently made solution, water and soda use. Components are mixed and mixed. This is an excellent option for processing all surfaces. When the acid becomes contact with soda, then the reaction will occur and the motorist will definitely notice it. This place will be needed thoroughly wipe to get rid of all the acid. If the terminals were previously treated with lubricant, then it is removed by any clean cloth.
  3. If there are covers on the battery, then you need to open before you start charging? - If the lids are on the housing, they are definitely removed.
  4. For what reason do you need to unscrew the lids with the battery? - It is necessary that the gases formed in the process of charging are free from the housing.
  5. Is there a need to pay attention to the level of electrolyte in the battery? - This is done necessarily. If the level is lower than the required, then you need to add distilled water inside the battery. The level to determine will not be difficult - the plates must be completely covered with liquid.

Homemaking by method of operation is somewhat different from the factory option. This is explained by the fact that the purchase unit has built-in functions that help. It is difficult for them to install on the apparatus assembled at home, and therefore will have to adhere to several rules during operation.

  1. The charger assembled with your own hands will not be turned off when charging the battery. That is why it is necessary to periodically monitor the equipment and connect a multimeter to it - to control the charge.
  2. It is necessary to be very neat, not to confuse the "plus" and "minus", otherwise the charger is burning.
  3. The equipment must be turned off when a connection with the charger occurs.

By fulfilling these simple rules, it will be able to properly make an ACB and prevent unpleasant consequences.

Top 3 Charger Manufacturers

If there is no desire or the opportunity to collect with your own hands, then pay attention to the following manufacturers:

The firms have proven themselves in the market, and therefore the reliability and functionality should not be worn when buying.

How to avoid 2 errors when charging the battery

It is necessary to comply with the basic rules to properly fueled the battery by car.

  1. Directly to the power supply, the battery is forbidden to connect. For this purpose, charging devices are intended.
  2. Even if the device is made high quality and from good materials, it will still be necessary to periodically observe the charging process so that it does not occur.

Performing simple rules will provide reliable operation of independently made equipment. It is much easier to monitor the unit than after spending on the components for repair.

The simplest charger for the battery

Scheme 100% of the working memory by 12 volts

12 volt memory

Look at the picture on the diagram of the memory of 12 V. The equipment is intended to charge automotive batteries with a voltage of 14.5 volts.

The maximum current obtained by charge is 6 A. But the device is also suitable for other batteries - lithium-ionic, since the voltage and output current can be adjusted.

All major components for assembling the device can be found on Aliexpress.com.

Required components:

  1. DC-DC lowering converter.
  2. Ammeter.
  3. Diode Bridge KSRS 5010.
  4. Hubs 2200 μF by 50 volts.
  5. Transformer TC 180-2.
  6. Circuit breakers.
  7. Plug for connecting to the network.
  8. Crocodiles for connecting terminals.
  9. Radiator for a diode bridge.

The transformer is used by any, at its own discretion, the main thing is that its power is not lower than 150 W (during charging current of 6 A). It is necessary to install thick and short wires on the equipment. The diode bridge is fixed on a large radiator.

Scheme zoom dawn 2

Scheme zoom dawn 2

Look at the picture on the diagram of the charger Dawn 2. It is composed on the original memory. If you master this scheme, you will independently create a high-quality copy, not different from the original sample.

Constructively, the device is a separate unit closed by the body to protect the electronics from moisture and exposure to bad weather conditions. On the base of the case, a transformer and thyristors on radiators must be connected.

A fee will be required that will stabilize the charge charge and control thyristors and terminals.

1 scheme of smart memory

Smart Ze.

Look at the picture a scheme of a smart charger. The device is necessary for connecting to lead-acid batteries having a capacity of 45 amps per hour or more.

Connect such a type of device not only to batteries, which is used daily, but also to duty or in reserve. This is a rather budgetary version of the equipment.

It does not provide an indicator, and the microcontroller can be bought the cheapest.

If there is a necessary experience, the transformer is going to do it. No need to install also audio alert signals - if the battery connects incorrectly, the discharge light bulb will notify the error. It is necessary to put the pulse power supply unit by 12 volts - 10 amps.

1 scheme of industrial memory

Look at the scheme of an industrial charger from Bars 8A equipment. Transformers are used with one power winding by 16 volts, several VD-7 and VD-8 diodes are added. This is necessary in order to provide a bridge scheme of the rectifier from one winding.

1 inverter scheme

Inverter View

Look at the picture of the diagram of the inverter charger. This device before starting charging discharges a battery to 10.5 volts.

The current is used with the value of C / 20: "C" denotes the capability of the installed battery. After this process, the voltage rises to 14.5 volts, with the help of a discharge-charging cycle.

The ratio of charge and discharge is ten to one.

1 Electronics Electronics

Electronics scheme

1 scheme of a powerful memory

Powerful memory

Look at the picture on a powerful charger for a car battery. The device is used for acid battery having a high container.

The device easily charges a car battery having a capacity of 120 A. Output voltage The device is adjusted independently. It ranges from 0 to 24 volts.

The scheme is notable for the fact that it has few components installed in it, but it does not require additional settings when working.

2 schemes of the Soviet para

Soviet para

Many could already see the Soviet Charger. It looks like a small box of metal, and may seem very unreliable. But it is not at all.

The main difference between the Soviet sample from modern models is reliability. Equipment has a structural power. In the event that the electronic controller is connected to the old device, the charger will turn out to be revived.

But if there is no such thing at hand, but there is a desire to collect it, it is necessary to study the scheme.

To features Their equipment includes a powerful transformer and rectifier, with which it turns out to be quickly charged even a highly discharged battery. Many modern devices will not be able to repeat this effect.

Electron 3m

Electron diagram 3m

For an hour: 2 Charging schemes do it yourself

Simple schemes

1 simplest scheme for automatic memory for auto battery

Simple scheme

Top 4 pulse memory schemes

Impulse zu

1 scheme for thyristor memory

Scheme

1 Simplified Scheme from Soldering Iron

Scheme

1 scheme for intelligent memory

Intellectual zoom

4 Detailed protection schemes for memory

Protection

New Schemes 2017 and 2018

New schemes

1 scheme for chinese zoom

Scheme

1 Simple scheme - how to collect a memory

Scheme

A source: https://elektro220v.ru/akkumulyatory/11-primerov-shemy-na-zaryAdnoe.html

The analysis of more than 11 schemes for making your own hands at home, new schemes 2017 and 2018, how to collect a fundamental scheme for an hour.

TEST:

To understand whether you have the necessary information about batteries and chargers for them, you should pass a small test:
  1. What is the main reasons, the car battery is discharged on the road?

A) the motorist left the vehicle and forgot to turn off the headlights.

B) the battery is too heated under the influence of sunlight.

  1. Can the battery fail if the car does not use for a long time (it is in the garage without launch)?

A) with a duty, a simple battery will fail.

B) No, the battery will not deteriorate, it will only be necessary to charge and it will function again.

  1. Which current source is used to recharge the battery?

A) There is only one option - a network with a voltage of 220 volts.

B) network for 180 volts.

  1. Be sure to remove the battery when connecting a self-made device?

A) It is advisable to dismantle the battery from the installed place, otherwise the risk will damage the electronics by the intake of a large voltage.

B) it is not necessary to remove the battery from the installed place.

  1. If you confuse "minus" and "plus" when connecting the memory, then the battery will fail?

A) Yes, when improperly connected, the equipment is scorified.

B) Charger simply will not turn on, you will need to move the necessary contacts to the required places.

Answers:

  1. A) No headlights when stopped and minus temperature are the most common reasons for the battery discharge on the road.
  2. A) Akb fails if it is not necessary to recharge it for a simple car.
  3. A) to recharge the network voltage in 220 V.
  4. A) It is not desirable to charge the battery with a homemade device if it is not removed from the car.
  5. A) should not be confused by the terminals, otherwise the homemade apparatus is overrigent.

Battery On the vehicle require periodic charging. The reasons for the discharge can be different - starting from the headlights that the owner forgot to turn off, and to negative temperatures in the winter on the street. For feeding AKB It will take good charger. Such a device in large varieties is presented in auto parts stores. But if there is no possibility or the desire to buy, then Zause You can make it yourself at home. There is also a large number of schemes - they are preferably studied to choose the most suitable option.

Definition: The charger for the car is intended for the transmission of electric current with a given voltage directly to Akb.

Answers to 5 frequently asked questions

  1. Will it take some additional measures before you start charging the battery on your car? - Yes, you will need to clean the terminals, since acid deposits appear during operation. Contacts It must be cleaned very well to clean the current without difficulties to go to the battery. Sometimes motorists use lubrication to handle terminals, it should also be removed.
  2. What to wipe the terminals of the charger? - Specialized tool can be bought in the store or prepare yourself. As an independently made solution, water and soda use. Components are mixed and mixed. This is an excellent option for processing all surfaces. When the acid becomes contact with soda, then the reaction will occur and the motorist will definitely notice it. This place will need to thoroughly wipe to get rid of all Acids. If the terminals were previously treated with lubricant, then it is removed by any clean cloth.
  3. If there are covers on the battery, then you need to open before you start charging? - If the lids are on the housing, they are definitely removed.
  4. For what reason do you need to unscrew the lids with the battery? - It is necessary that the gases formed in the process of charging are free from the housing.
  5. Is there a need to pay attention to the level of electrolyte in the battery? - This is done necessarily. If the level is lower than the required, then you need to add distilled water inside the battery. The level to determine will not be difficult - the plates must be completely covered with liquid.

Another important to know: 3 nuances of operation

Homemaking by method of operation is somewhat different from the factory option. This is explained by the fact that the purchase unit has built-in functions Helping in work. They are difficult to install on the device assembled at home, and therefore will have to adhere to several rules when operation.

  1. The charger assembled with your own hands will not be turned off when charging the battery. That is why it is necessary to periodically monitor the equipment and connect to it Multimeter - To control the charge.
  2. Need to be very neat, not to confuse "plus" and "minus", otherwise Charger grill.
  3. Equipment must be turned off when connecting to Charger.

Fulfilling these simple rules, it turns out to correctly produce a feedback AKB And prevent unpleasant consequences.

Top 3 Charger Manufacturers

If there is no desire or the opportunity to collect with your own hands Pray That pay attention to the following manufacturers:

  1. Stack.
  2. Sonar.
  3. Hyundai.

The firms have proven themselves in the market, and therefore the reliability and functionality should not be worn when buying.

How to avoid 2 errors when charging the battery

It is necessary to comply with the basic rules to properly focus Battery. by car.

  1. Directly to the electrical stub Rechargeable battery It is forbidden to connect. For this purpose, charging devices are intended.
  2. Even device It is made high quality and of good materials, you still need to periodically observe the process. charging So that trouble do not happen.

Performing simple rules will provide reliable operation of independently made equipment. It is much easier to monitor the unit than after spending on the components for repair.

The simplest charger for the battery

Scheme 100% of the working memory by 12 volts

12 volt memory
12 volt memory

Look at the picture on the scheme Zause On 12 V. The equipment is intended to charge automotive batteries with a voltage of 14.5 volts. The maximum current obtained by charge is 6 A. But the device is also suitable for other batteries - lithium-ionic, since the voltage and output current can be adjusted. All major components for assembling the device can be found on Aliexpress.com.

Required components:

  1. DC-DC lowering converter.
  2. Ammeter.
  3. Diode Bridge KSRS 5010.
  4. Hubs 2200 μF by 50 volts.
  5. Transformer TC 180-2.
  6. Circuit breakers.
  7. Plug for connecting to the network.
  8. Crocodiles for connecting terminals.
  9. Radiator for a diode bridge.

Transformer Any one is used, at its own discretion, the main thing is that its power is not lower than 150 W (with a charging current of 6 A). It is necessary to install thick and short wires on the equipment. The diode bridge is fixed on a large radiator.

Scheme zoom dawn 2

Scheme zoom dawn 2
Scheme zoom dawn 2

Look at the picture on the Charger Scheme Dawn 2. . It is composed of original Head. If you master this scheme, you will independently create a high-quality copy, not different from the original sample. Constructively, the device is a separate unit closed by the body to protect the electronics from moisture and exposure to bad weather conditions. On the base of the case, a transformer and thyristors on radiators must be connected. A fee will be required that will stabilize the charge charge and control thyristors and terminals.

1 scheme of smart memory

Smart Ze.
Smart Ze.

Look at the picture of the intelligence scheme Charger . The device is necessary for connecting to lead-acid batteries having a capacity of 45 amps per hour or more. Connect such a type of device not only to batteries, which is used daily, but also to duty or in reserve. This is a rather budgetary version of the equipment. It does not provide indicator, And the microcontroller can be bought the cheapest.

If there is a necessary experience, the transformer is going to do it. No need to install also audio alert signals - if battery It will be connected incorrectly, the discharge light light will notify the error. It is necessary to put the pulse power supply unit by 12 volts - 10 amps.

1 scheme of industrial memory

11 examples: Schemes for a homemade charger for a car battery

Look at the industrial scheme Charger From Bars 8a equipment. Transformers are used with one power winding by 16 volts, several VD-7 and VD-8 diodes are added. This is necessary in order to provide a bridge scheme of the rectifier from one winding.

1 inverter scheme

Inverter View
Inverter View

Look at the picture of the diagram of the inverter charger. This device before starting charging discharges a battery to 10.5 volts. The current is used with the value of C / 20: "C" denotes the capability of the installed battery. After that Process The voltage rises to 14.5 volts, with the help of a discharge-charging cycle. The ratio of charge and discharge is ten to one.

1 Electronics Electronics

Electronics scheme
Electronics scheme

1 scheme of a powerful memory

Powerful memory
Powerful memory

Look at the picture on a powerful charger for a car battery. The device is used for acid Akb, having a high container. The device easily charges a car battery having a capacity of 120 A. Output voltage The device is adjusted independently. It ranges from 0 to 24 volts. Scheme Noteworthy in that there are few components installed in it, but it does not require additional settings.

2 schemes of the Soviet para

Soviet para
Soviet para

Many could see Soviet Charger . It looks like a small box of metal, and may seem very unreliable. But it is not at all. The main difference between the Soviet sample from modern models is reliability. Equipment has a structural power. In the event that to the old Device Connect an electronic controller, then Charger It turns out to revive. But if there is no such thing at hand, but there is a desire to collect it, it is necessary to study the scheme.

To features Their equipment includes a powerful transformer and rectifier, with which it turns out to be quickly charged even highly discharged. Battery. Many modern devices will not be able to repeat this effect.

Electron 3m

Electron diagram 3m
Electron diagram 3m

For an hour: 2 Charging schemes do it yourself

Simple schemes

1 simplest scheme for automatic memory for auto battery

Simple scheme
Simple scheme

Top 4 pulse memory schemes

Impulse zu

1 scheme for thyristor memory

Scheme
Scheme

1 Simplified Scheme from Soldering Iron

Scheme
Scheme

1 scheme for intelligent memory

Intellectual zoom
Intellectual zoom

4 Detailed protection schemes for memory

Protection

New Schemes 2017 and 2018

New schemes

1 scheme for chinese zoom

Scheme
Scheme

1 Simple scheme - how to collect a memory

Scheme
Scheme

Battery discharge - the problem with which many car owners face. This is especially unpleasant if this happens beyond the city where there is no access to civilization. So that this does not happen, motorists can purchase a ready-made charger, but you can make a similar charger for the car battery with your own hands. Especially since it does not take a lot of time and save a lot of money.

Read more about how to make such a device will be discussed in this article. The material provides detailed instructions, describes the entire process of step bypass with visual schemes and drawings. And also contains the main schemes charger for the car battery, where they are used and for what is necessary, a pair of useful videos is added on the topic, attention to the reader is offered an interesting material for downloading.

Experienced ammunition masters find a way out of the situation, complementing the device homemade automatic sensors.

Homemade memory for the car.

Causes and signs of discharge acb

During the operation of the battery during the operation of the engine there is a permanent recipient of the AKB from the car generator. You can check the charge process by connecting the multimeter to the battery terminals when the engine is running, measuring the charging voltage of the car battery. The charge is considered normal if the voltage on the terminals is from 13.5 to 14.5 volts.

Options of the device

Table of the level of charges of the battery.

What should be the minimum voltage of the battery?

The voltage of a normally charged battery during the parking lot should be at least 12.5 volts. In the event that the voltage is less than 11.5 volts, the engine motor may not start during the start.

For a complete charge, you need to drive on a car at least 30 kilometers or about half an hour in the city's city rhythm. Reasons for the discharge of the battery:

  • Akb has significant wear ( more than 5 years of operation );
  • Incorrect operation of the battery, leading to sulfate plates;
  • long-term parking vehicle, especially during the cold season;
  • City rhythm of the car movement with frequent stops, when the battery does not have time to charge enough;
  • Invisible electrical appliances of the car during parking;
  • Damage to wiring and car equipment;
  • Leaks for electrical caps.

Additional material: What is a multimeter and how to choose it.

Many car owners in a set of on-board tools do not have means for measuring the voltage of the AKB ( Voltmeter, Multimeter, Probe, Scanner ). In this case, you can be guided by indirect signs of the discharge of the battery:

  • dull light bulbs on the dashboard when the ignition is turned on;
  • lack of starter rotation when starting the engine;
  • Loud clicks in the starter area, moving the lights on the dashboard at startup;
  • The complete absence of a car reaction to turn on the ignition.

When the listed features appear, first of all, it is necessary to check the terminals of the AKB, if necessary, clean and clamp them. In the cold season, you can try to put a battery at a warm room for a while and warm it.

Gray do it yourself.

Gray do it yourself.

Types of homemade chargers

You can try to "searcate" cars from another car. If these methods do not help or are impossible, you have to use the charger.

Determining car battery charge degree

Determining car battery charge degree

Simplest

Consider the case of how to charge the battery with screwdrivers. For example, the situation when you left the car near the house, forgetting to turn off some electrical equipment. By the morning the battery was discharged and does not start the car. In this case, if your car starts well (from the floor turn), the battery is slightly "tightening."

First, a source of constant voltage is required ranging from 12 to 25 volts. Secondly, restrictive resistance. What can you advise? Now almost every house has a laptop. A laptop or netbook power supply, as a rule, has an output voltage of 19 volts, current at least 2 amps. The external withdrawal of the power connector is minus, internal - plus.

What is a gamer meter and how to make it with your own hands.

Read more

As a restrictive resistance, it is necessary !!!, you can use the cabin light bulb of the car. You can, of course, more powerful from turn signals or worse than stops or dimensions, but there is a possibility of overloading the power supply. The simplest scheme is assembled: minus power supply - light bulb - minus battery - plus akb - plus power supply.

In a couple of hours, the battery will recharge so much that the engine will be able to run. If there is no laptop, you can buy a powerful rectifier diode with a reverse voltage of more than 1000 volts in advance with a reverse voltage and a current of 3 amps. It has small sizes, you can put in the glove box for an emergency. What to do in an emergency? First of all - remove the battery from the car.

The simplest memory for the car.

The simplest memory for the car.

Next to assemble the chain: the terminal of the socket 220 volts is the minus output of the diode - the positive output of the diode - the restrictive load is a minus battery terminal - a plus terminal of the battery - the second terminal 220 volts. As a restrictive load, you can use conventional incandescent bulbs by 220 volts. For example, a 100 watt lamp (power = voltage X current). Thus, when using a 100 watt lamp, the charge current will be about 0.5 amps. A little bit, but during the night he will give 5 amps-hours of capacity to the battery. It is usually enough to scroll the car in the morning a couple of times.

The power supply of the car requires 12 B, but the battery charge should be around 13 - 15 V. The battery has the property of accumulating energy. When the load is turned on, the battery consumes energy. Consumption will be about 10% of the total charge.

Account charge degree in voltage.

If you connect to parallel, three lamps of 100 watts charge current will increase three times. You can almost post the car battery overnight. Sometimes instead of lamps include an electric stitch. But here it can already fail the diode, and at the same time and the battery. In general, this kind of experiments with a direct charge of the battery from the 220 volt voltage network is extremely dangerous. They should only be used in extreme cases when there is no other output.

Charger circuit.

Charger circuit.

From computer power supplies

Before you begin making your own hand charger for a car battery, you should evaluate your knowledge and experience in the field of electrical and radio engineering. In accordance with this, choose the level of complexity of the device. First of all, you should decide on the element base. Very often, the users of computers remain old system blocks. There are power supplies. Along with the supply voltage + 5V, there is a tire +12 volt. As a rule, it is designed for current up to 2 amps. This is quite enough for the intimid charger.

It is necessary to "overclock" it up to 15. Usually by the "Tyka" method. Take resistance about 1 kiloma and connect parallel to other resistances near the chips with 8-legs in the secondary circuit of the power supply circuit. Thus, the coefficient of transmission of the feedback circuit is changed, respectively, the output voltage. It is difficult to explain in words, but usually users do it. The selection of the resistance value can be achieved voltage at the output of about 13.5 volts. It is enough to charge the car battery.

Next should be connected to the output chain of the crocodiles. No restrictive resistances are not necessary, the electronics of the power supply will make it all. If there is no power supply at hand, you can search the transformer with a secondary winding by 12 - 18 volts. They were used in old tube televisions and other appliances. Now such transformers can be found in the exhaust uninterrupted power sources, it is possible to buy it for a penny on the secondary market. Next, proceed to the manufacture of a transformer charger.

Charger from power supplies.

Charger from power supplies.

Transformer zoom

Transformer charging devices are the most common and safe devices, widely used in motorist practices. Video is a simple charger for a car battery using a transformer: the simplest transformer charger circuit for the car battery comprises: a network transformer; rectifier bridge; Restrictive load. A high current flows through the restrictive load, it is strongly heated, therefore, condensers in the primary transformer circuit often use to limit the charging current.

In some cases, the battery simply does not have time to gain the necessary charge. These include frequent car start, rare and short trips, a long-lasting simple vehicle.

Density battery charge degree table.

In principle, in such a scheme you can do without a transformer if you correctly pick up the condenser. But without electroplating junction with an AC network, such a scheme will be dangerous from the point of view of electric shock. More practical schemes for chargers for automotive batteries with adjustment and lifting current of charge. As a powerful rectifier diodes, you can use the rectifying bridge of a faulty car generator, slightly rebuitating the scheme. More complex pulse chargers with desulfation function are usually made using chip, even microprocessors. They are complex in manufacturing, require special installation and setup skills. In this case, it is easier to acquire the factory device.

Transformer memory for cars.

Transformer memory for cars.

Simple "Charger" with quenching capacitors

This simple device allows you to charge the batteries with a capacity of up to 100 a · h arbitrary current, which is adjusted in the range of 1-10 A with increments of 1 A, which will be sufficient for high-quality maintenance of any car battery. A lowering TP1 transformer is built into the memory, the network voltage is supplied to it through the C1-C4 quenching capacitors. Each of the capacitors has its own switch, which includes it in the transformer power supply chain. The capacitances of the capacitors are arranged in such a way that the S1-S4 switches are 1, 2, 4, 8, respectively.

Combining the positions of the switches, you can select an arbitrary charging current in the range of 1-10 A, with a step 1 A. For example, if you need to set the current 6 A, then you need to close the S3 and S2 switches. The current in 5 A will ensure the switching on switches S3 and S1. The voltage reduced by the transformer is supplied to the diode bridge, straightens and goes to the Clems x3 and x4, to which the charged battery is connected. The charging current is measured by the PA1 ammeter, and the Voltmeter PV1 gives the voltage on the battery terminals. The battery discharge chains through the charger in the event of the disappearance of the network voltage in this diagram there, since their role performs a diode bridge.

Low cost

Availability of parts and elements

Easy assembly

Need skills in electronics

Safety Safety Safety

The appearance of homemade is often inferior to the finished product.

About the details

C1-C4 capacitors pick up non-polar types of MBGOs, MBGP, MBCH, KBG-MN, MBM or MBHC with a working voltage of at least 300 V for MBGH and KBG-MN and no more than 600 V for the instruments of other types. It is categorically unacceptable to use electrolytic capacitors, even if they are calculated on the appropriate voltage. The electrolyte is a polar device operating only in DC circuits. When connected to an AC circuit, it will simply explode. Instead of d242 diodes, any other, withstand currents of at least 10 A and the reverse voltage not lower than 25 V.

It is interesting to read: what is the frequency converter and why it is needed.

Suitable, for example, diodes D214 or Germany D305. Under any conditions, they need to put on radiators. TR1 transformer is a regular network with output voltage 24-26 V, capable of providing at least one-hour charging current. Instruments PA1 and PV2 - ammeter with a measurement limit 10-15 A and voltmeter to voltage 20 V, respectively. The specified charger can be used for charging batteries with other voltages (for example, 6-volt), but here it is necessary to take into account that the "weight" of the S1-S4 togglers will be different, and will have to be determined by the ammeter.

Charger for the car battery do it yourself.

Charger for the car battery do it yourself.

Pole from a lamp television

The first will be the scheme, perhaps the most simplest, and practically any car enthusiast can cope with her. For the manufacture of the simplest charger, you need only two components - a transformer and rectifier. The main condition that the charger should correspond - is the current force at the outlet from the instrument should be 10% of the battery capacity. That is, often on the passenger car, the battery is used by 60 Ah, based on this, at the outlet of the device, the current will be at 6 A. The voltage is 13.8-14.2 V. If someone has an old unnecessary Lamp Soviet TV, then a better transformer than from it not to find. The schematic diagram of the charger from the TV has this kind.

Often, TS-180 transformer was installed on such TVs. The feature of it was the presence of two secondary windings, 6.4 V and current power of 4.7 A. The primary winding also consists of two parts. Initially, you will need to perform a sequential connection of the windings. The convenience of work with such a transformer is that each of the conclusions of the winding has its own designation. D.

A sequential connection of the secondary winding must be connected to each other conclusions 9 and 9 \ '. And to the conclusions 10 and 10 \ '- solder two segments of the copper wire. All wires that are soldered to the conclusions must have a cross section of at least 2.5 mm. sq. As for the primary winding, it is necessary to connect the conclusions 1 and 1 \ 'to serial compound.

Wires with a fork for connecting to the network you need to solder to the conclusions 2 and 2 \ '. On this S. Transformer work Completed. Next you need to make a diode bridge. This will require 4 diodes capable of working with a current of 10 A and above. For these purposes, diodinal bridges D242 or analogues of D246, D245, D243 are suitable. The diagram indicates how diodes should be connected - the wires from the conclusions 10 and 10 \ 'are sold to the diode bridge, and the wires that will go to the battery.

Pulse memory for the car.

Pulse memory for the car.

Charger for AKB with PWM-Adjustment

This scheme is able to provide a charging current up to 6 A and is highlighted in small dimensions, since it uses a pulse control method (PWM), and the charging current transistor operates in a key mode, which significantly reduces power dissipating on it. The specifying generator of the current adjustment unit is assembled on elements DD1.1, DD1.2 chip K561L7, elements DD1.3, DD1.4 - buffer. The generator frequency is 13 kHz, the diversity is smoothly adjustable using a variable resistor R3. From the generator, the signal comes to the control element - the powerful field transistor VT1 operating in the key mode.

Depending on the position of the variable resistor, the ratio of the opening time of the transistor to its closed state changes, which means that the average battery charging current can be controlled using the PA1 ammeter. The meal of the microcircuit receives from the simplest parametric stabilizer collected on the elements R1, VD4. The stabilizer itself is connected to the rectifier bridge providing charging voltage. For compactness considerations, the diode bridge is assembled on Schottky semiconductors with a minor voltage drop. Lamp EL1 - indicator.

In these cases, the additional external recharging of the battery is needed.

Table of voltage dependence and degree of battery charging.

About the details. The secondary winding of the T1 transformer should provide a current of 6-7 A at a voltage of 16-20 V. If you use a transformer, at the secondary winding of which there is a removal from the middle, then the rectifier can be collected according to the diagram below by reducing the number of rectifier diodes twice. In the bridge rectifier uses a diode assembly VD1.1 VD1.2 and two separate VD3 and VD4 diode.

All elements are installed on a total radiator 160x45 mm through mica gaskets. If necessary, Schottki diodes can be replaced by conventional rectifier, but the dimensions of the device will increase, since the larger radiator is needed. When replacing, it is necessary to take into account that the diodes must withstand a current of 10 A and the reverse voltage of at least 40 V.

If the charging current does not exceed 5 A, then the VT1 transistor is not needed to install on the radiator. With a larger current, the radiator is needed - the copper or aluminum plate with a size of 50x50x1 mm. As an ammeter, the M476 / 2 recorder recording indicator is used in parallel with the shunt. The shunt is a piece of copper winding wire PEV-2 1.5, wound on a mandrel with a diameter of 8 mm. The amount of turns - 16, resistance is about 0.1 ohms.

Proper charging

There are two methods for charging the automotive battery - constant voltage and direct current. Each has its own features and disadvantages:

  • Charging a constant voltage is suitable for the recovery of the charge of not fully discharged batteries, the voltage on the terminals of which is not lower than 12.3 V. The process is as follows: the battery terminals are connected with a voltage of 14.2-14.7 V. The end of the process controls the current consumption: when it falls to zero, charging is considered to be finished. The lack of this method is possible a large initial charging current; The stronger the battery is discharged, the higher the current. The advantages of the method are obvious - you do not need to constantly adjust the charging current, the battery does not threaten the recharge if you forget about it.
  • Charging a constant current is the most common and reliable way. In this mode, it gives a constant current equal to 1/10 battery capacity. The end of the charging process is determined by the voltage on the battery - when it reaches 14.7 V, charge the battery is stopped. The lack of such a method - the battery can be spoiled without removing in time with charging.
Determining the battery status

Battery status assessment table.

What is the main feature of the charger for the car?

All memory is performed by one work - convert the variable voltage 220 V per constant - 13.8-14.4 V.

What is needed for a simple self-made charger?

For the manufacture of the simplest charger, you need only two components - a transformer and rectifier.

How many fuses need for a homemade charger in a car?

One of them is recommended to be installed on the "plus" withdraw from a diode bridge. This fuse should be designed for current not more than 10 A. The second fuse (0.5 A) must be installed on the output 2 of the transformer.

Conclusion

Take the right decision about the need for external battery recharging will help the use of a conventional tester for measuring voltage.

Engineer in the specialty "Software Computer Engineering and Automated Systems", MEPhI, 2005-2010

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Additional information about the subject of the article can be found from the "Automotive Device" file. And also in our group VK publishes interesting materials with which you can get acquainted first. To do this, we invite readers to subscribe and join the group. In conclusion I want to express my gratitude to the sources from where the material to prepare the article:

www.autoot.ru.

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Video "Step-by-step instructions for assembling a charger"

Outcome

These are only a few types of charging devices that can be made at home from undergraduated means, although their options are much larger.

This is especially true of charging devices that are made of computer power supplies.

If you have experience in the manufacture of such devices share them in the comments, many will be very grateful for it.

How to charge the battery from the homemade device

Charging the battery homemade device does not differ from charging with an industrial device.

  1. Take the current regulator in "0".
  2. Connect the charging battery to the terminals of the memory.
  3. Feed meals on the memory.
  4. Install the necessary charging current.
  5. At a voltage of 13.2-13.4 in the battery terminals, we reduce the current twice.
  6. At voltage on terminals 13.8 V withding the current regulator in "0", turn off the power of the memory, turn off the battery.

Opinion expert

Alexey Bartosh

Specialist in repair, maintenance of electrical equipment and industrial electronics.

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In the last two designs, you do not need to control the battery voltage - as soon as the battery charges, charging current will become equal to zero.

Here in principle, all about homemade chargers. After reading this material, we can easily choose the most suitable charger diagram and repeat it.

Transformer devices

The simplest diagram of the device with a transformer.

Fig.4

Follow the following indicators:

Its disadvantage is the need to limit current in the output chain and the associated high power losses and heating resistors. Therefore, condensers are used to adjust the current.

Fig.5

Follow the following indicators:

Theoretically, having calculated the rating of the condenser, you can not use the power transformer as shown in the diagram.

Fig.6.

A fully equipped battery will show 12.6 - 12.7 V;

When buying capacitors, you should choose the corresponding rating with a voltage of 400 V and more.

In practice, larger use was obtained with current control devices.

Fig.7.

12.3 - 12.4 B correspond to 75%;

You can select the schemes of pulse homemade charger for the car battery. They are more complex circuitry, require certain skills when installing. Therefore, if you do not have special skills, it is better to buy a factory block.

Answers to 5 frequently asked questions

  1. Will it take some additional measures before you start charging the battery on your car? - Yes, you will need to clean the terminals, since acid deposits appear during operation. The contacts need to be cleaned very well to come to the current without difficulties to battery. Sometimes motorists use lubrication to handle terminals, it should also be removed.
  2. What to wipe the terminals of the charger? - Specialized tool can be bought in the store or prepare yourself. As an independently made solution, water and soda use. Components are mixed and mixed. This is an excellent option for processing all surfaces. When the acid becomes contact with soda, then the reaction will occur and the motorist will definitely notice it. This place will be needed thoroughly wipe to get rid of all the acid. If the terminals were previously treated with lubricant, then it is removed by any clean cloth.
  3. If there are covers on the battery, then you need to open before you start charging? - If the lids are on the housing, they are definitely removed.
  4. For what reason do you need to unscrew the lids with the battery? - It is necessary that the gases formed in the process of charging are free from the housing.
  5. Is there a need to pay attention to the level of electrolyte in the battery? - This is done necessarily. If the level is lower than the required, then you need to add distilled water inside the battery. The level to determine will not be difficult - the plates must be completely covered with liquid.

Top 3 Charger Manufacturers

If there is no desire or the opportunity to collect with your own hands, then pay attention to the following manufacturers:

  1. Stack.
  2. Sonar.
  3. Hyundai.

The firms have proven themselves in the market, and therefore the reliability and functionality should not be worn when buying.

Scheme zoom dawn 2

Scheme zoom dawn 2Scheme zoom dawn 2

Look at the picture on the diagram of the charger Dawn 2. It is composed on the original memory. If you master this scheme, you will independently create a high-quality copy, not different from the original sample. Constructively, the device is a separate unit closed by the body to protect the electronics from moisture and exposure to bad weather conditions. On the base of the case, a transformer and thyristors on radiators must be connected. A fee will be required that will stabilize the charge charge and control thyristors and terminals.

1 scheme of industrial memory

11 examples: Schemes for a homemade charger for a car battery

Look at the scheme of an industrial charger from Bars 8A equipment. Transformers are used with one power winding by 16 volts, several VD-7 and VD-8 diodes are added. This is necessary in order to provide a bridge scheme of the rectifier from one winding.

1 inverter scheme

Inverter ViewInverter View

Look at the picture of the diagram of the inverter charger. This device before starting charging discharges a battery to 10.5 volts. The current is used with the value of C / 20: "C" denotes the capability of the installed battery. After this process, the voltage rises to 14.5 volts, with the help of a discharge-charging cycle. The ratio of charge and discharge is ten to one.

1 scheme of a powerful memory

Powerful memoryPowerful memory

Look at the picture on a powerful charger for a car battery. The device is used for acid battery having a high container. The device easily charges a car battery having a capacity of 120 A. Output voltage The device is adjusted independently. It ranges from 0 to 24 volts. The scheme is notable for the fact that it has few components installed in it, but it does not require additional settings when working.

2 schemes of the Soviet para

Soviet paraSoviet para

Many could already see the Soviet Charger. It looks like a small box of metal, and may seem very unreliable. But it is not at all. The main difference between the Soviet sample from modern models is reliability. Equipment has a structural power. In the event that the electronic controller is connected to the old device, the charger will turn out to be revived. But if there is no such thing at hand, but there is a desire to collect it, it is necessary to study the scheme.

To features Their equipment includes a powerful transformer and rectifier, with which it turns out to be quickly charged even a highly discharged battery. Many modern devices will not be able to repeat this effect.

Top 4 pulse memory schemes

Impulse zu

1 Simplified Scheme from Soldering Iron

SchemeScheme

1 scheme for intelligent memory

Intellectual zoomIntellectual zoom

4 Detailed protection schemes for memory

Protection

Features of the functioning of batteries

Not all drivers know that lead-acid accumulators are used in cars. Such an acb is distinguished by their endurance, therefore, they are able to serve up to 5 years.

To charge lead batteries, a current is used, which is 10% of the overall capacity of the battery. This means that for charging the battery, the capacity of which is 55 A / h, the charging current of 5.5 A. is required if you have a very high current, it can lead to the boiling of electrolyte, which, in turn, will lead to a decrease in service life Devices. A small charging current does not prolong the battery life, but it is not capable of negatively reflecting the integrity of the device.

It is interesting! When the current is submitted 25 And the battery recharge occurs, so after 5-10 minutes after connecting the memory with such a par, you can start the engine. Such a high current is given modern inverter charging devices, only it negatively affects the battery life.

When charging the battery, the charging current flows back the worker. The voltage for each bank should not be higher than 2.7 V. in the battery on 12 V 6 cans, which are not connected with each other. Depending on the battery voltage, the number of cans, as well as the required voltage for each can. If the voltage is greater, this will lead to the process of decomposition of electrolyte and plates, which contributes to the failure of the battery. To eliminate the occurrence of the electrolyte boiling process, the voltage is limited to 0.1 V.

The battery is considered discharged if when connecting a voltmeter or multimeter, the devices show the voltage of 11.9-12.1 V. Such a battery should be immediately recharged. The charged battery has a voltage on terminals 12.5-12.7 V.

12 - 12.1 V means 50% of energy;

Example of voltage at the terminals of the charged battery

The charge process is the restoration of the consumed capacity. Charging batteries can be performed in two ways:

  1. D.C . In this case, the charging current is regulated, the value of which is 10% of the tank of the device. Charge time is 10 hours. The charge voltage is varied from 13.8 V to 12.8 in the entire charge duration. The lack of such a method is that it is necessary to control the charging process, and turn off the charger until the electrolyte boils. This method is gentle for acb and neutrally affects their service life. Transformer charging devices are used to implement such a method.
  2. Constant pressure . At the same time, the voltage of 14.4 V, and the current varies from large values ​​to the smaller automatically. Moreover, this change of current depends on such a parameter as time. The longer the battery is charging, the lower the current value becomes. The reload of the battery will not be able to not be able, unless you forget to turn off the device and leave it a few days. The advantage of this method is that after 5-7 hours the battery is charged by 90-95%. Akb can also be left unattended, so this method is popular. However, few of the car owners are known that such a charging method is "extra". When it is used, the battery life is significantly reduced. In addition, the more often carrying out in this way, the faster the device will be discharged.

Now even an inexperienced driver can understand that if there is no need to hurry with the charging of the battery, it is better to give preference to the first variant (by current). With accelerated charge restoration, the device's service is reduced, so the likelihood that in the near future will need to buy a new battery. Based on the foregoing, the material will be considered options for the manufacture of charge and voltage chargers. For the manufacture, you can use any reservoir devices that will be talked further.

Charging Requirements

Before conducting the procedure for the manufacture of self-made charger for AKB, you must pay attention to the following requirements:

  1. Ensuring a stable voltage of 14.4 V.
  2. Autonomy of the device. This means that the homemade device should not require the supervision of it, as often the battery is charged at night.
  3. Ensuring the disconnection of the charger while increasing the charging current or voltage.
  4. Stir protection. If the device is connected to the battery incorrectly, then the protection should be activated. To implement the chain, the fuse is included.

The ignition is a dangerous process, as a result of which the battery can explode or boil. If the battery is working and only slightly discharged, then when the charging device is incorrectly connected, there will be an increase in the charge current above the nominal. If the battery is discharged, then an increase in the voltage above the specified value is observed and as a result - the electrolyte boils.

How to charge the battery from the homemade device

Separately, it should be understood on the question of how to properly charge the battery with a self-made charger. This is recommended to adhere to the following recommendations:

  1. Compliance with polarity. It is better to check the polarity of the self-made device by a multimeter than "bite elbows", because the cause of the failure of the battery was the error with wires.
  2. Do not check the battery using contacts. This method only "kills" the device, and does not revive it, as indicated in many sources.
  3. Turn on the device to the 220 V network should only after the terminals are connected to the battery. In the same way, the device is turned off.
  4. Compliance with safety, as the work is carried out not only with electricity, but also with accumulatory acid.
  5. The process of charging the battery must be monitored. The slightest malfunction can cause serious consequences.

Based on the above recommendations, it should be concluded that self-made devices are at least acceptable, but still not able to replace the factory. It is not safe to make homemade charging, especially if you are not sure that you can do it correctly. The material presents the simplest schemes for the implementation of chargers for automotive batteries, which will always be useful in the farm.

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Principle of automotive battery

Car battery feeds power to electronics, due to what automated processes occur during riding.

The standard battery is equipped with six elements, each of which has a nominally value of 2.2 volts. The elements go sequentially one by one and are a continuous link.

A special electrolyte solution takes part in their work. It is resistant to low and high temperatures.

During the operation of the battery, complex chemical and physical reactions occur, which leads all the mechanics in the machine.

Charger rating

Your attention is presented rating of chargers for car batteries.

Aurora Sprint 6.

Aurora Sprint 6 is a fairly well-known brand of German production. The manufacturer assures that this is high-quality products. It has microprocessor control, which avoids sharp energy jumps, and also provides reliable contact with electrical pipelines.

For a hundred diagnostics of such a charger occurs quickly, and in the event of a breakdown, you will not have to give big money for repairs.

Fubag Micro 80/12.

FUBAG Micro 80/12 is a popular Swedish brand among motorists. In his own country, it is considered the best charger for the car battery. The range of containers is from 3 to 75 amps-hours.

The device is extremely easy to control using one MODE button. The charger is convenient to use and will certainly become an indispensable thing for a long trip.

CTEK MXS 3.8.

CTEK MXS 3.8 - its main feature is moisture protection, as well as a strong case, which is able to withstand strong blows and loads.

It should be noted that this is a low-capacity battery and therefore it will be enough for a small amount of time. But as practice shows, even such a little thing does not affect his work and popularity.

Conclusion

In conclusion, we want to say that the charger for the car battery is this thing with which it is necessary to work as much as possible.

Violation of elementary safety equipment can lead to a stream of high voltage, strong burns and other unpleasant consequences. Be extremely careful and follow the condition of your car.

Photo of the charger for the car battery do it yourself

Wires for connecting

To attach any charger use, as a rule, red and black wires, red - it is a plus, black - minus.

When you select cables, to connect a charging or starter, you need to choose a cross section of at least 1 mm 2.

Attention. Further information is posted for informational purposes. All you want to realize in life, you do at your discretion. Incorrect or inept handling of those or other parts and devices will result in a malfunction.

Looking at the available types of charging devices, we turn directly to the manufacture with your own hands.

Diode bridge for charger do it yourself

The above-mentioned electrical circuit is distinguished by poor efficiency, as it provides charging one half-wave. The disadvantage will eliminate the usual diode bridge. After such an upgrades, efficiency is doubled. Similarly, the process of the technological process is reduced. With a parallel setting of several incandescent bulbs, the current increases in proportion.

Diodes connecting diagram

Diodes connecting diagram

Video

Helpful advice

When using devices without automatic charge control, you can apply the simplest network, the daily relay of Chinese production. It will save it from the need to follow the time of disconnecting the block from the network.

The cost of such a device is about 200 rubles. Knowing an approximate charging time of your battery, you can set the desired trip time. This guarantees timely cessation of electricity. You can dare to be destroyed and forget about the battery, which can lead to boiling, destruction of the plates and the battery output. New battery will cost much more

Precautions

When using appliances collected by their own hands, the following security measures should be observed:

  1. All devices, including acb, should be on a refractory surface.
  2. With the primary use of the manufactured device, it is necessary to ensure complete control of all charging parameters. It is necessary to control the heating temperature of all elements of charging and the battery, it is impossible to make the electrolyte boiling. Voltage and current parameters are controlled by a tester. Primary control will help determine the time of complete battery charging, which is useful in the future.

To collect charging for the battery is easy even for a beginner. The main thing is to do everything carefully and abide by security measures, since it will have to deal with an open voltage of 220 volts.

Briefly about factory charger models

The trading network sells 3 types of devices designed to restore auto power sources:

  • impulse;
  • automatic;
  • Transformer charging and starting machines.

The first type of memory is capable of fully charged the batteries using pulses in two modes - first at constant voltage, and then - with a constant current. These are the most simple and affordable products suitable for recharging all types of automotive batteries. Automatic models are harder, but do not require supervision during operation. Despite a higher price, similar to the memory - the best choice for the driver - a novice, because thanks to protection systems never overload and do not spoil the battery.

11.8 - 11.9 V shows 25%.

Mobile appliances equipped with their own battery, transmitting a car, if necessary, appeared on sale. But they will also have to be periodically charged from the mains 220 V.

Powerful transformer vehicles capable of not only recharge the power supply, but also rotate the machine starter, more relate to professional installations. Such a charger, although it has ample opportunities, is worth a lot of money, so it is likely to use ordinary users.

But what to do when the battery has already been discharged, there is no charge at home yet, and tomorrow you need to go to work? One-time option - contact your neighbors or acquaintances for help, but it is better to make a primitive memory with your own hands.

Why do you need a battery?

The universal battery is useful on trips. It will not be necessary to carry all the chargers with you. You can make a battery that in size and ease of use will meet all requests.

You can also independently make an automatic battery charger, which is useful in the winter season. Even if the garage or parking is heated, the battery still lacks heat. Therefore, it quickly develops.

You can replenish the reserve of its work in the interruptions using homemade charging, and then you can safely go to long distances even with the harsh weather conditions.

Charger for AA batteries

Today, many devices operate on batteries. The main minus is difficult to track how the charge will end soon. And if at the most inopportune moment of the battery of the battery, and there is no one to go to the store for new time, you can use a homemade battery.

To make charger AA batteries with their own hands, you will need:

  • flux;
  • solder;
  • soldering iron;
  • tweezers;
  • tester;
  • Screwdrivers.

The tester is needed to test the performance of radio components for comparison with standard indicators.

You will also need a battery compartment and a housing. The compartment take from any children's toys (for example, from Tetris, which was very popular in the 90s). Any plastics case is also suitable.

Further the process looks like this:

  • Battery compartment Breppy to the enclosure of the screws. As a basis, you can take a game console fee. We drink everything along this sample and leave the power socket.
  • We connect the soldering iron the details, focusing on the scheme. Do not forget to take into account polarity: plus solder to the plus.
  • For the cord, you can use a cable from a computer mouse with a USB input.
  • Check the tension from the cord. The tester will display the indicator in 5V.
  • Install the charging current. Tester plug in so that the minus connects to the battery, and plus - with a diode.
  • Current mode put 200 mA and turn on the network. The LED caught fire - it means that you did everything right.
  • Now you need to set the charging current indicator by changing the resistance. Similarly, we do the second battery of the AA type.

What makes a car charger

Specific options such as batteries from activated carbon or cook salt should not be considered if you value the machine. There is a safer and simple option that with. A success will be successfully implemented.

Today, lithium-polymer and lithium-ion batteries are used to produce batteries. They also work on the basis of a chemical reaction, but without the use of electrolyte. This allows you to talk about their security, because in the process of such charging, a chemical reaction will not arise.

In addition, lithium batteries cost inexpensively, work stably and are suitable for the manufacture of chargers for any purpose. They are widely used in the production of lanterns, phones and electronics.

Photo charger for battery do it yourself

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Help the project, tell me to friends:

Why need to charge acb

In modern cars used lead acid batteries. Their feature is that with a constant weak charge occurs The process of sulfate plate . As a result, the battery loses the container and cannot cope with the start of the engine. You can avoid this, regularly charge the battery from the network. With it, you can recharge the battery and prevent, and in some cases even wrapped reversal, the process of sulfate.

Fully "Sorting" AKB will issue a voltage of 11.6 - 11.7 V. This is a critical indicator that affects a negative effect of the battery.

Charger (UZ) for batteries made by your own hands, is indispensable in cases where you leave the car in the garage for the winter period. Because of the self-discharge, the battery loses 15-30% Capacity for the month . Therefore, to start the car at the beginning of the season without prior charging will not work.

Which current source

The charger made by your own hands requires a power source. Parameters are required for acb 14.5-15 V / 2-5 A (ampere hours) . Such characteristics are available in pulsed power supplies (UPS) and on the transformer.

The advantage of the UPS is that it may already be available. But the complexity of creating a memory for the battery is based on it much higher. Therefore, buy a pulse power supply for use in the automotive memory is not worth it. It is better then to make a simpler and cheap power source from the transformer and rectifier.

Battery Charger Scheme:

How to competently charge the battery

Advantages and disadvantages of the finished product

Apply different ways to recharging:A large number of car enthusiasts prefer to make charging for battery with their own hands the following reasons :

  1. Low cost due to cheap components.
  2. Easy operation and reliability.

The homemade design has its drawbacks, such as the absence of most schemes of various modes of operation, automatic charging functions and protection against polarity non-compliance. But for many car owners, they depart into the background due to the fact that the device successfully copes with the charging of the battery for 10 hours.

Operating principle

The car's electric generator is capable of charging the battery to a certain level, which is ensured by the operation of a special relay transmitting voltage to 14.1 V.

The charger consists of the main nodes - transformer and rectifier which transform the variable voltage of 220 V and give the current of the same parameters until the battery is completely charged.

Setting and start

With an error-free assembly and the suitable elements of the scheme, The device is immediately ready for operation You only need to set the stress threshold by a variable resistor.

Adjusting the device is carried out in the process of charging, but more correctly check in advance to check and configure the regulatory and protection sections with the tester.

Starting the device is carried out in the following order:

  1. Removing the car battery and cleaning it from dirt and acid residues.
  2. Tubes are twisted in the battery and the electrolyte level is checked. If necessary, then produce water plot.
  3. The commissioning regulator is set to the desired reading of the charging current, the contacts are connected to the battery with polarity.
  4. The device turns on, and, depending on the degree of charging, the battery is performed periodic adjustment of the current force to 100% battery charging.

If there are basic technical knowledge and the necessary parts, you can collect a commissioning device that is necessarily useful to the motorist, especially in the winter period.

In conclusion, another interesting version of the device

With a lack of experience, you can always find video on the network, where various chargers are described in detail, their scheme and the assembly process. Such an apparatus will perform the same functions as manufactured at the factory, but it will cost much cheaper by money.

Almost every modern motorist met with the problems of the battery. In order to resume its normal performance, you must have a mobile charger. It allows you to reanimate the device in seconds.

The main component of any charging is a transformer. Thanks to him, you can make a simple charger with your own hands at home.

Here you will learn what details will be needed when building construction. Tips of experienced experts will help avoid common mistakes.

Brief content of the article:

How should battery charging?

Charge the battery is necessary according to certain rules that will help extend the operational period to this device. Violation of one of the items can provoke a premature breakdown of parts.

Charging parameters must be selected in accordance with the characteristic features of the automotive battery. This process allows you to adjust a specialized device that is sold in specialized departments. As a rule, it has a rather high cost, which makes it not affordable for each consumer.

That is why most prefer to make a charger power supply with their own hands. Before proceeding with the workflow, you need to familiarize yourself with the types of charging for the machine.

Varieties charging for batteries

The process of charging batteries is the restoration of lost power. For this, special terminals are used, which produce permanent current and constant voltage.

In the process of connecting, it is important to observe polarity. Incorrect installation will lead to the appearance of a short circuit, which will lead to the fire of parts inside the car.

Experienced motorists recommend applying permanent current. It will restore power for a long time, but without reducing the operational period of details. On average, this time is from 10 to 15 hours.

For rapid renovation of the battery, it is recommended to use a constant voltage. It can restore the operability of the car in 5 hours.

Simple Charger Scheme

What can the charger make? All parts and consumables can be used from old household appliances.

To do this, you will need:

A step-down transformer. It is in old tube TVs. It helps to reduce 220 V to the required 15 V. at the output of the transformer, variable voltage will be obtained. In the future it is recommended to straighten. To do this, you will need straightening diode. In the schemes how to make a charger with your own hands, the drawing of the connections of all items is depicted.

Diode bridge. Thanks to him, negative resistance is obtained. The current is performed with pulsating but controlled. In some cases, a diode bridge with a smoothing capacitor is used. It provides a permanent current.

Consumables. There are fuses, as well as meters. They help control the entire charge process.

Multimeter. It will indicate the power drops during the charging process of the car battery.

The only disadvantage of this method is the lack of ability to control the parameters of the power supply. It is important to get a charge within 15 V. so that the current turned out much more, it is recommended to use an additional resistor.

This device in the process will warm up much. Prevent the installation overheating will help a special cooler. It will control power jumps. It is used instead of a diode bridge. In the photo of the charger, the finished equipment for charging a car battery is selected with their own hands.

You can adjust the process by changing the resistance. For this use a rapid resistor. This method is used in most cases.

It is possible to make manual adjustment of the feed current using two transistors and a trimming resistor. These parts provide a uniform flow of constant voltage and provide the correct level of voltage at the output. In the Internet, a variety of ideas and instructions are presented How to make a charger.

Photo of the charger do it yourself

Schemes of simple powerful battery chargers.

Transformer memory for automotive batteries with high efficiency: the simplest on quenching capacitors, as well as impulse

on thyristors, simistors and powerful field transistors. constant supplied voltage;For a start, let's break and forget about such a parameter as the efficiency. Suppose there is a keen desire to charge the car Akb, But there is no possibility due to the complete absence of charging. We will also make an assumption that the farm has lost: incandescent lamp by 220 volts, a diode bridge with a permissible current exceeding the current in which we will charge the battery, or, at worst, Continuous electric shock.Just a power (rectifier) ​​diode with the same permissible current and maximum reverse voltage - at least 300V.

Fig.1

Navigating the scheme shown in Fig.1 to the left, and pursuing compliance with safety, as well as the polarity of the connection to the battery, Both options have their own nuances.Both options have their own nuances.We get a complete workable device that provides normalized and permanent charge current of the battery charge.

Since 220 volts are the active value of the voltage of the network, the current strength flowing through the battery can be calculated by simple

Formula: The use of uniform feed voltage is appropriate with the charge indicator more than 12.3 V. When recharging the drive terminals are connected to the supply of energy from 14.2 to 14.7 V. The process does not need to be monitored. The completion of its completion shows the end of the current consumption by the battery to zero.Izar (a) = PLAMP (W) / (220 - UAKB) (B) ≈ PLAMP (W) / 220 (B)

.

A parallel connection of two lamps - doubles the charging current, three - afterwards, etc. to reasonable infinity. The disadvantage of this method of charging is the possibility of supplying potentially high current at the initial step of charging. The pros will be attributed to the lack of need to control the process.The scheme depicted in Figure 1 on the right, gives a current twice as smaller compared to the previous one. The optimal option is the use of DC. Charging occurs with a constant power equal to the tenth of the battery capacity. The shutdown is performed when the battery reclocked 14.7 V. The essential minus of this method is the need to control the voltage of the AKB. Otherwise, it is easy to spoil.The greater advantage of the shown schemes is the possibility of charging any batteries, regardless of their own values ​​of their voltages.

Another simple and budget scheme of the battery charger with an operating voltage 12 or 6 V and electrical capacity

The optimal option is the use of DC. Charging occurs with a constant power equal to the tenth of the battery capacity. The shutdown is performed when the battery reclocked 14.7 V. The essential minus of this method is the need to control the voltage of the AKB. Otherwise, it is easy to spoil.From 10 to 120 a / h is presented in Fig. 2.

Fig.2

The device consists of a lowering transformer T1 and a powerful rectifier collected on diodes VD2-VD5. Installation of charging current Required detailsPerched by S2-S5 switches, with which in the power supply chain of the primary winding of the transformer connects quenching capacitors

C1-C4.

We continue the theme www.drive2.ru/b/2181752/, with a description of step-by-step making of our charging. Due to the multiple "weight" of each switch, various combinations allow step-to-adjust charging current in the range of 1-15 A In terms of 1 A. this is enough to select the optimal charging current.

An example of a diode bridge.

In the design you can use any power transformer with a capacity of about 300 W, including homemade. He must issue

On the secondary winding, the voltage is 22-24 at the current up to 10-15 A.. In place VD2-VD5, any rectifier diodes that carry out the straight line will be suitable.

Here is a list of suitable diodes for our needs.

I found D243, I just fits.

Next, with the help of our friends,

We cut any aluminum profile for the manufacture of cooling radiators.

Connect the elements of each other according to the scheme,

To comply with the polarity and facilitate the assembly on each diode there is a label (drawing), which can be focused. It turned out so, already marked black and red where the polarity should be at the exit, plus red and minus black.

Now all these elements are placed in the housing, by observing the distance, and according to the scheme, connect to the transformer (coil).

The current is at least 10 A and the reverse voltage not lower than 40 V. is suitable for D214 or D242. They should be installed through insulating gaskets on

Diodes view

View from the cooling system.

In fact, this is the ready simplest power supply without protection. It has a cooling system that will prevent our block and parts from overheating. But it does not have protection against short circuit and work with it needs to be controlled by a separate measuring instrument.

Step 5: The simplest scheme of the most affordable charger.

To create, we need any simplest power supply from 15V and higher. Power supplies are also suitable for laptop and household appliances. So as we have already manufactured such a block, consider the connection schemes to the automotive battery for charging. The most common.

with our power supply

With a power supply from a laptop.

As you can see an additional chain element, this car light is 12V or several pieces.

You can say the light bulb will be an indicator of work, charging, and a small protection of power supplies from failure. Since the automotive battery in essence has low density and power supplies that are not intended for this may simply fail. Also, if it suddenly gets a battery with closed banks about which will signal a very bright glow.

According to this scheme, I connected acb through these light bulbs,

On a little discharged battery

According to this scheme, such a charging that I collected gives up to 3 amps.

When charging calmly gives 1 amp, which favorably affects the battery, while it is not bad for low currents.

When charging the battery, you need to unscrew the plugs on the banks on the battery.

Minus such a scheme that the charging process must be controlled by a separate measuring device so that there is no recharge on the battery, that is, when it is reached on terminals to ~ 14.4V or boiling in banks, you need to disable everything.

In the following themes, we consider the simplest current adjustment schemes - we will make your own, consider how to connect the measurement instruments to the ammeter voltmeter. It can be said a little complicating the design that everyone does not have experience on electronics.

Well, like that of all the world and good, add comments if there is something to tell or take part, I will not refuse :).

Radiator with scattering area of ​​at least 300 square meters. cm.

Capacitors C2-C5 must necessarily be non-polar paper with a working voltage not lower than 300 V. Suitable, for example, MBCH, KBG-MN,

MBGO, IBD, IBM, IBGC. Such capacitors having the shape of cubes were widely used as phase shifting for household electric motors

Technique. As PU1, a voltmeter of DC type M5-2 with a measurement limit of 30 V. PA1 is an ammeter of the same type with

30 A. measurement limit

In this scheme, the high efficiency of the efficiency will be achieved due to the use of capacitors as a current elements that are known to

They have reactive conductivity and do not allocate thermal power on themselves.

Next, impulse (key) chargers, built on another principle, but also differ in low

own power consumption.

One of the first impulse poles that appeared on the market were thyristor devices.

Generally, a thyristor is a device enough

Capricious and requiring adherence to a certain set of conditions for reliable operation. That is why - most of the simplest schemes given

In various sources, sin not very stable work and the need to select elements.

From the number of successful simple developments, you can bring the diagram of a thyristor charger from the book of dear T. Khodasevich "Charging

  • Devices ", repeatedly repeated with a numerous ample radio lobby and depicted in Fig.3.
  • Fig. 3.
  • This is what the author writes:
  • Charger allows you to charge auto batteries with a current from 0 to 10 A, and can also be an adjustable source

Power for powerful low-voltage soldering iron, volcanizer, portable lamp.

The charging current is close to the impulse, which is considered to contribute to the extension of the battery life.

The device is operational at ambient temperature from - 35 ° C to + 35 ° C.

  • The charger is a thyristor phase-pulse control power regulator, powered by a downgrade II
  • Transformer T1 through the diode bridge VDI ... VD4.

The thyristor control unit is made on an analogue of a single-pass transistor VTI, VT2. The time during which the C2 capacitor is charging

Before switching a single-pass transistor, can be adjusted by a variable resistor R1. With extreme right according to the scheme of its position

Charging current will be maximal, and vice versa.

The VD5 diode protects the VS1 thyristor control circuit from the reverse voltage occurs when the thyristor is turned on.

Capacitor C2 - K73-11, with a capacity from 0.47 to 1 μF, or K73-16, K73-17, K42U-2, MBGP.

Transistor Kt361a will be replaced by KT361B - KT361O, CT3107L, CT502B, KT502G, CT501G - KT50IK, and KT315L - on CT315B + CT315D KT312B, CT3102L,

  • KT503B + KT503g, p307. Instead of KD105B, CD105B diodes are suitable, KD105G or D226 with any alphabetic index.
  • Variable resistor R1 - SP-1, SPZ-30A or SPO-1.
  • The ammeter of the RA1 - any direct current with a scale of 10 A. It can be made independently from any milliammeter, picking up the shunt
  • on an exemplary ammeter.
  • Fuse F1 - fuse, but it is convenient to apply a network automatic machine for 10 A or automotive bimetallic on the same current.
  • VD1 ... VP4 diodes can be anywhere on a direct current of 10 A and a reverse voltage of at least 50 V (series D242, D243, D245, KD203, CD210, KD213).

The rectifier diodes and thyristor are installed on heat sinks, each with a useful area near 100 cm *. To improve thermal contact

Devices with heat sinks it is desirable to use heat-conducting pastes.

Instead of thyristor, KU202V is suitable KU202G - CU202E. Tested in practice that the device works normally and with more powerful

Thyristors T-160, T-250.

The device can use the finished network lowering transformer of the required power with the secondary winding voltage.

  1. from 18 to 22 V.
  2. If the transformer voltage on the secondary winding over 18 V, the R5 resistor should be replaced by another, greater resistance
  3. (For example, at 24 ... 26 in resistance of the resistor should be increased to 200 ohms).
  4. Despite the popularity and performance of the diagram, during the functioning of the device, many noted the uncharacteristic buzz
  5. transformer at frequencies other than 100 Hz. This is due to the lack of clear and rapid fronts / recessions in signals entering
  6. to the thyristor control input when it is turned on / off, which in turn creates conditions for the occurrence of generation processes
  7. In the load.
  8. The pulse chargers in which the switching element is performed on a symmetrical operation are somewhat better and more reliable.
  9. (bipolar) analogue of a thyristor - Simistor.

Figure 4 shows a diagram of a similar device from the aforementioned book T. Khodasevich.

Fig.4

The described below the charger has a wide range of charging current control - almost from 0 to 10a and maybe

Used to charge various batteries on the voltage of 12V.

The device is based on a seminist regulator with a low-power diode bridge VD1-VD4 and resistors R3 and R5. After connecting the device

To the network, with its positive half-period, the C2 capacitor is charged via the R3 resistor, the VD1 diode and consistently connected resistors

R1 and R2. In the minus half-period - through the same R1 and R2, the VD2 diode and the R5 resistor. In both cases, the capacitor charges to one and

The same voltage changes only by the polarity of its charging. Once the voltage on the condenser reaches the neon lamp ignition threshold

HL1, it is ignited and the capacitor quickly discharged through the lamp and the control electrode of the Simistor VS1. In this Symistor opens.

At the end of the semi-version, the simistor closes. The described process is repeated in each semiprode of the network.

It is well known that the control of the simistor through a short impulse has the disadvantage that in inductive or high-aligned active

The electrode current of the device may not have time to achieve the value of the retention current during the validity of the control pulse.

One of the measures to eliminate this disadvantage is the inclusion parallel to the load of the resistor. In the described charger such

Resistors are R3 and R5 resistors, which, depending on the polarity of the network voltage sepidimension, are alternately connected

Parallel to the primary winding of the transformer.

The same purpose also serves as a powerful resistor R6, which is a load of rectifier VD5, VD6. The same resistor forms the bitmap pulses

Currents that prolong the service life of the AKB.

Instead of the R6 resistor, you can install the incandescent lamp to the voltage of 12V with a power of 10W.

In the manufacture of the transformer is set by the following parameters: voltage on the secondary winding of 20V at a current 10a.

Several simplified the device described above can be applied in its high-voltage part of the Distoror (Fig. 5).

Fig.5

We considered this diagram with the chart details on the page link page. therefore

  1. I will not repeat, I will only say that the presence of a tube chain shown in a blue scheme - be sure. As a load
  2. Primary network transformer winding.
  3. In modern chargers as a switching (adjusting) element, powerful are practically used everywhere.
  4. Field transistors. One of the similar devices was described in detail in the radio journal No. 5 2011 on page 44.

Fig.6.

The charger control unit is a pulse generator collected on elements DD1.1 and DD1.2 (see the circuit in Fig. 6)

and allowing adjusting pulses, buffer amplifier - inverter on elements DD1.3 and DD1.4 and switching regulating

  • Element - field transistor VT1.
  • When the elements indicated on the diagram, the generator frequency is about 13 kHz. Since the resistance of the open channel of the transistor VT1
  • Very small (0.017 0m) and it works in a switch mode, with a charge current up to 5 A transistor almost does not heat up -
  • Dissected thermal power does not exceed 0.55 W.

Photo of the charger for the car battery do it yourself

As a lowering, a network transformer with an overall power of 150 W with a secondary winding, providing permanent

Voltage 16 ... 17 V on the C1 condenser and charging current up to 6 A.

The rectifier bridge is assembled on Schottky diodes, VD1 - dual SBL4045PT, A VD2 and VD3 - single 10tq045.

If the secondary winding of the network transformer is covered with a tap from the middle, the number of diodes in the rectifier and heat dissipation from

They can be reduced twice.

The drawing of the board is presented in Fig. 7.

Fig.7.

The described control unit can also be used in light and heating devices, to change the rotational speed of the collector

Fig.7.

electric motors. In this case, the supply voltage of devices can be varied over the wide limits determined by the maximum allowed

Parameters for switchal transistor and, of course, rectifier. In particular, the IRFZ46N transistor used in the node has

Maximum scattered power 107 W, maximum current via channel 53 A, the maximum voltage of stock source 55 V. is possible

Replacing the IRFZ44N transistor.

Maximum scattered power 107 W, maximum current via channel 53 A, the maximum voltage of stock source 55 V. is possible

The proposed device allows you to adjust the power from zero to the maximum value, and the regulating transistor does not need

In efficient heat assignment with increasing load current up to 5 A.

As a result of a long or improper operation of automotive batteries, the plates can be sulganized, which leads

  • To their degradation and subsequent failure.
    • There is a method for restoring such batteries by the method of charge by their "asymmetric" current. In this case, the ratio of the charger and discharge
    • The current is selected 10: 1 (optimal mode). This mode allows not only to restore the accumulated batteries batteries,

    But also carry out prophylactic processing of serviceable. Transformer

    Fig.8. To build a full-fledged self-made charger, a certain set of elements will be required.

  • Fig. 8 shows a simple charger designed to use the method described above. The scheme provides impulse Transformer (needed with two windings).
  • Charging current up to 10 A (used for accelerated charge). To restore and train batteries, it is better to install Rectifier at the output from the built-in transformer. Factory or homemade, collected from 4 diodes.The pulse charge current 5 A. The discharge current will be 0.5 A. The discharge current is determined by the value of the R4 resistor rating. Wiring.
  • The scheme is designed so that the battery charge is performed by current pulses for one half of the network voltage period,
  • When the voltage at the output of the circuit exceeds the voltage on the battery. During the second half period of diodes VD1, VD2 closed and battery
  • discharged through the load resistance R4.
  • The charging current value is set by the R2 control over the ammeter. Considering that when charging the battery, part of the current proceeds and
  • Through the R4 resistor (10%), then the indications of the ammeter of the Republic of Armender must correspond to 1.8 A (for a pulsed charging current of 5 A), since the ammeter
  • Shows averaged current value for a period of time, and the charge is performed within half of the period.

The diagram provides the battery protection from the uncontrolled discharge in case of accidental disappearance of the network voltage.

  1. In this case, the K1 relay will open the battery connectivity circuit. Relay K1 applied type RPU-0 with operating voltage
  2. The windings of 24 V or less voltage, but in this case, a restrictive resistor is activated with the winding. Voltmeter and, necessarily, ammeter to track the process.
  3. For the device, you can use a transformer with a power of at least 150 W with a voltage in the secondary winding of 22 ... 25 V.
  4. The measuring device of the Republic of Armenia is suitable with a scale of 0 ... 5 A (0 ... 3 A), for example M42100. The VT1 transistor is installed on the radiator area
  5. at least 200 square meters cm, which is convenient to use a metal body of the charger design.
  6. Step 4: "Rectifying" scheme.

We have previously decided on the coil, the case and cooling has already been determined, but the fact is that the coil or the transformer gives an alternating current, for its conversion to constant, the diagram of a diode "bridge" or a ready-made diode bridge that is kept from 30a and higher.

But in the market prices for diode bridges, though small but we will use more accessible details.

  • We will produce on the basis of "Soviet" diodes that are in any television radio equipment of those times, in any case they are more reliable, and more resistant to overheating.
  • I got like that.
  • With the need to charge the battery, any avtowner faces sooner or later. Maintenance of the automotive battery at the car service station or the acquisition of a special memory will require serious financial spending. A good option to exit this situation will serve as a charger, with their own hands made with the help of a soldering iron.
  • Pros and cons of homemade
  • The undoubted advantage of the self-made instrument to recharge the battery is its low cost.

Details of different household appliances are often used as components for a commissioning device. Even in the case of the acquisition of all the parts to be installed, it will be noticeably cheaper than the finished device.

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