SU1591136A2

SU1591136A2 - Device for charging storage battery

Info

Publication number: SU1591136A2
Application number: SU884494471A
Authority: SU
Inventors: Anatolij D Chesnokov
Original assignee: Ch Polt I
Priority date: 1988-10-17
Filing date: 1988-10-17
Publication date: 1990-09-07

Description

The invention relates to electrical engineering and can be used to charge lead-acid batteries2

batteries (AB). The purpose of the invention is the expansion of functional capabilities. For this purpose, the device contains a distributor, a constant stabilized current source, a reference voltage source, • control circuits, transistor switches, a charge time control unit, a display unit, galvanic isolation units, and a power source having M + 1 galvanically isolated channels, where M is the number batteries in the battery, and the master oscillator is made manageable. The device allows you to identify in the AB defective batteries that can not be charged to the appropriate for. these voltages, 1ga.

The invention relates to electrical engineering, can be used to charge lead-acid batteries and is an improvement on the device auth.St.

№ 1317561%

The purpose of the invention is to expand the functionality of the device.

The drawing shows a block diagram of a device for charging a battery consisting of three batteries,

The device contains a controlled generator 1, a distributor 2, 3–5 galvanic isolation blocks, 6–8 control circuits, a source of 9 reference voltages, transistor switches ΙΟΙ 5, a constant stabilized current source 16, batteries 17–19 of the rechargeable battery, a charge time control unit 20 , block 21 indica— 'go and power supply 22.

The output of the controlled generator 1 is connected to the input of the distributor 2, the corresponding outputs of which, through galvanic isolation blocks 3-5, are connected to the first input of control circuits 6–8 connected by second inputs to the outputs of the source 9 of reference voltages and the first and second outputs to control inputs corresponding pairs of transistor switches 10 and 11, 12 and 13, 14 and 15,

through which the constant current source GB is connected

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with the corresponding terminals of the accumulators 17-19, connected to the fourth and fifth inputs of the control circuits 6-8, the third input and the third output of which are connected to the corresponding inputs and outputs of the charge time control unit 20 connected by INFORMATION through blocks 3-5 of galvanic isolation OUTPUT With the display unit 21, the control output - with the input of the controlled generator 1, and the clock input - with its output, the power supply 22 is connected to the source voltage of the reference voltages, the corresponding control circuits 6–8 and corresponding 3–5 galvanic decoupling units, and (M + 1) th channel, with controlled generator 1, distributor 20 Lem 2, charge time control unit 20, display unit 21 and galvanic decoupling units 3-5.

After the device is put into operation, the controlled generator produces pulses of a certain frequency, which arrive at the clock input of the charge time control unit 20 and the distributor 2 input. The charge time control unit 20 starts counting the total charge time βθ. At each of the outputs of the distributor 2, a resolving signal appears sequentially, coming through the corresponding block 3, 4 or 5 of the galvanic isolator - ^^ to the control circuits 6, 7 or 8.

While the voltage on the battery 17, 18 or 19 is less than the set value, the corresponding control circuit 6, 7 or 8 forms signals from its dd first and second outputs, from -, <covering the corresponding pairs of transistor switches 10 and 11, 12 and 13, or 14 and 15. A 45 charge current pulse passes through the corresponding battery 17, 18 or 19. When the voltage on any battery 17,

18 or 19 reaches the set value specified by the source 9 of the reference voltages, the corresponding control circuit 6, 7 or 8 generates at its third output a signal arriving through block 3, 4 or 5 galvanic isolation to the appropriate input of the time control block 20 $ . The latter starts counting the recharge time of the corresponding battery 17, 18 or 19. After the specified time has passed

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recharging the battery, the charge time control unit 20 generates a signal at the corresponding output, which, through the corresponding block 3, 4 or 5 galvanic isolation, enters the third input of the corresponding 6, 7 or 8 control circuit. On the first and second outputs of the corresponding, control circuit 6, 7 or 8, signals that enable the corresponding pairs of transistor switches 10 and 11 do not appear,

12 and 13 or 14 and 15. The charge of the corresponding battery stops. The charge of the remaining batteries continues as before.

Upon expiration of the total charge time sufficient to ensure that any serviceable battery is charged to the nominal capacity, the charge time control unit 20 analyzes the information coming into it through the blocks 3-5 of galvanic isolation from the third outputs of the control circuits 6-8, about reaching the batteries 17 -19 voltage setpoint. If the voltage of all batteries 17-19 has reached the set value, the charge time control unit 20 checks whether the recharge time of each battery 17-19 has expired, and if it has expired, forms a signal at its control output that stops the controlled generator 1, and at its information output - the signal of the end of the charge process, which is displayed on the display unit 21. If the voltage of all batteries 17-19 has reached the set value, but the recharge time of at least one of them has not expired, the charge continues, despite the expiration of the total charge time.

If, after the total charge time has passed, the voltage on at least one of the batteries 17, 18 or 19 has not reached the set value, then the charge time control unit 20 generates a signal at its control output that stops the controlled generator 1, and signals at its information output health or malfunction of the corresponding batteries 17-19, displayed on the block 21 of the display.

Thus, due to the introduction of a charge time control unit, a display unit, galvanic isolation units and a power source, the

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go (M + 1) galvanically decoupled channels, - where M is the number of batteries in the battery, and the execution of the master oscillator is controllable, it is possible to expand the functionality of the device *

Claims

Claim

Device for charging the battery on the auth.St. No. 1317561, characterized in that, in order to expand the functionality of the device, a charge time control unit, an indication unit, electrical isolation units and a power source having (M + 1) galvanically isolated channels, where M is the number of batteries in the battery, are entered into it. the battery, and the master oscillator is controlled, and the output of the controlled oscillator is connected to the input of the distributor, the corresponding outputs of which are connected to the first inputs of the circuits through galvanic isolation units

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control, connected to the second inputs, with the outputs of the reference voltage source, and the first and second outputs with the control inputs of the respective pairs of transistor switches, through which the constant stabilized current source is connected to the corresponding terminals of the accumulators of tori connected to the fourth and fifth inputs of the control circuits the third input and the third output of which are connected to the corresponding inputs through galvanic isolation units and you

By 15 moves of the charge time control unit, connected by an information output to the display unit, controlling the output to the input of the controlled generator, and clock nine input from its output, the power source is connected by M channels to the source of reference voltages, corresponding control circuits and corresponding galvanic blocks decoupling, and (M + 1) -th channel - with a controlled generator, distributor, charge time control unit, display unit and galvanic isolation unit.