CN204391867U - Lead-acid battery quick charge control circuit - Google Patents
Lead-acid battery quick charge control circuit Download PDFInfo
- Publication number
- CN204391867U CN204391867U CN201420873155.1U CN201420873155U CN204391867U CN 204391867 U CN204391867 U CN 204391867U CN 201420873155 U CN201420873155 U CN 201420873155U CN 204391867 U CN204391867 U CN 204391867U
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- lead
- acid battery
- comparator
- voltage
- lifting
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Abstract
The utility model lead-acid battery quick charge control circuit, comprises power supply, current rectifying and wave filtering circuit, the first lifting/voltage reducing module, the second lifting/voltage reducing module, lead-acid battery, pulsed triggering circuit, the first comparator, the second comparator, switching circuit and metal-oxide-semiconductor.The utility model lead-acid battery quick charge control circuit can control the charging of lead-acid battery, and namely lead-acid battery needs then to open fast charge mode when charging, then closes fast charge mode and enter floating charge pattern time lead-acid battery is full of.
Description
Technical field
The utility model relates to control circuit, particularly a kind of lead-acid battery quick charge control circuit.
Background technology
General lead-acid battery charging is uncontrollable, charging process always; If the useful life of lead-acid battery will be greatly reduced when lead-acid battery is full of or with big current trickle charge, also likely there are some unpredictable faults.
Utility model content
The purpose of this utility model is to provide a kind of simple, controllability, fail safe and the higher lead-acid battery quick charge control circuit of stability.
For solving the problems of the technologies described above, the utility model lead-acid battery quick charge control circuit, comprise power supply, current rectifying and wave filtering circuit, the first lifting/voltage reducing module, the second lifting/voltage reducing module, lead-acid battery, pulsed triggering circuit, the first comparator, the second comparator, switching circuit and metal-oxide-semiconductor; The output V1 of wherein said first lifting/voltage reducing module is through the first resistance R1 and the first voltage-stabiliser tube D1 ground connection, and the positive pole of described first comparator is connected between described first resistance R1 and described first voltage-stabiliser tube D1; The pulse output pin of described pulsed triggering circuit is connected with the negative pole of described first comparator; The output pin of described first comparator is connected with the grid of described metal-oxide-semiconductor; Output voltage terminal V2, the 5th resistance R5 of described second lifting/voltage reducing module and the 3rd voltage-stabiliser tube D3 digital grounding, the positive pole of described second comparator is connected between described 5th resistance R5 and described 3rd voltage-stabiliser tube D3; Described lead-acid battery link negative pole be digitally connected; Described lead-acid battery link positive pole is through the 6th resistance R6 and variable resistor R7 digital grounding, and the negative pole of the second comparator is connected on the convertible tip of described variable resistor R7; The output pin of described second comparator is connected with the importation of described switching circuit, and the output voltage of described switching circuit powers to described first comparator; The drain electrode digital grounding of described metal-oxide-semiconductor, the source ground of described metal-oxide-semiconductor.Described power supply is alternating current.
The utility model lead-acid battery quick charge control circuit can control the charging of lead-acid battery, and namely lead-acid battery needs then to open fast charge mode when charging, then closes fast charge mode and enter floating charge pattern time lead-acid battery is full of.
Accompanying drawing explanation
Fig. 1 is the utility model lead-acid battery quick charge control circuit schematic diagram.
Description of reference numerals in the utility model lead-acid battery quick charge control circuit accompanying drawing:
1-power supply 2-current rectifying and wave filtering circuit 3-first lifting/voltage reducing module
4-second lifting/voltage reducing module 5-lead-acid battery 6-pulsed triggering circuit
7-first comparator 8-second comparator 9-switching circuit
Embodiment
Below in conjunction with accompanying drawing, the utility model lead-acid battery quick charge control circuit is described in further detail.
As shown in Figure 1, the utility model lead-acid battery quick charge control circuit, comprises alternating-current power supply 1, current rectifying and wave filtering circuit 2, first lifting/voltage reducing module 3, second lifting/voltage reducing module 4, lead-acid battery 5, pulsed triggering circuit 6, first comparator 7, second comparator 8, switching circuit 9 and metal-oxide-semiconductor.
Do not connect alternating current and lead-acid battery 5, at lead-acid battery 5 link access direct current VMAX, magnitude of voltage is the maximum charging voltage of lead-acid battery 5, regulates variable resistor R7 to make V4 be a magnitude of voltage; And then to change galvanic magnitude of voltage be V1 (voltage as lead-acid battery 5 is 12V, then this value is 11.5V), regulate variable resistor R3, make the magnitude of voltage of V5 and V4 equal.
Incoming transport electricity and lead-acid battery 5, when lead-acid battery 5 needs charging, namely the voltage of lead-acid battery 5 is less than V1, now the magnitude of voltage of V5 is greater than V4, then the second comparator 8 exports positive voltage, and switching circuit 9 is started working, and output voltage VCC uses to the first comparator 7; The cathode voltage of negative pole and the first comparator 7 that pulsed triggering circuit 6 exports Puled input first comparator 7 compares, now the first comparator 7 exports pulsed drive metal-oxide-semiconductor, then digital grounding and ground connection are connected, i.e. the minus earth of lead-acid battery 5, and lead-acid battery 5 enters fast charge mode.
When lead-acid battery 5 is full of electricity, namely the voltage of lead-acid battery 5 is VMAX, and now the voltage of V5 is less than V4, and the output voltage of the second comparator 8 is 0, and switching circuit 9 quits work, and namely output voltage VCC is that the 0, first comparator 7 does not work, metal-oxide-semiconductor not conducting.The negative pole of lead-acid battery 5 is connected with ground GND with resistance through diode, and charging current is now less, and fast charge mode terminates, and namely enters floating charge pattern.Wherein the main chip of pulsed triggering circuit 6 is NE555 chip.
The utility model lead-acid battery quick charge control circuit can control the charging of lead-acid battery, and namely lead-acid battery needs then to open fast charge mode when charging, then closes fast charge mode and enter floating charge pattern time lead-acid battery is full of.
Below the preferred embodiment that the utility model is created is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modification or replacement under the prerequisite without prejudice to the invention spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (2)
1. lead-acid battery quick charge control circuit, it is characterized in that, comprise power supply, current rectifying and wave filtering circuit, the first lifting/voltage reducing module, the second lifting/voltage reducing module, lead-acid battery, pulsed triggering circuit, the first comparator, the second comparator, switching circuit and metal-oxide-semiconductor; Wherein
The output V1 of described first lifting/voltage reducing module is through the first resistance R1 and the first voltage-stabiliser tube D1 ground connection, and the positive pole of described first comparator is connected between described first resistance R1 and described first voltage-stabiliser tube D1;
The pulse output pin of described pulsed triggering circuit is connected with the negative pole of described first comparator;
The output pin of described first comparator is connected with the grid of described metal-oxide-semiconductor;
Output voltage terminal V2, the 5th resistance R5 of described second lifting/voltage reducing module and the 3rd voltage-stabiliser tube D3 digital grounding, the positive pole of described second comparator is connected between described 5th resistance R5 and described 3rd voltage-stabiliser tube D3;
Described lead-acid battery link positive pole is through the 6th resistance R6 and variable resistor R7 digital grounding, and the negative pole of the second comparator is connected on the convertible tip of described variable resistor R7;
Described lead-acid battery link negative pole be digitally connected;
The output pin of described second comparator is connected with the importation of described switching circuit, and the output voltage of described switching circuit powers to described first comparator;
The drain electrode digital grounding of described metal-oxide-semiconductor, the source ground of described metal-oxide-semiconductor.
2. lead-acid battery quick charge control circuit according to claim 1, is characterized in that, described power supply is alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420873155.1U CN204391867U (en) | 2014-12-30 | 2014-12-30 | Lead-acid battery quick charge control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420873155.1U CN204391867U (en) | 2014-12-30 | 2014-12-30 | Lead-acid battery quick charge control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204391867U true CN204391867U (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420873155.1U Active CN204391867U (en) | 2014-12-30 | 2014-12-30 | Lead-acid battery quick charge control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204391867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600820A (en) * | 2014-12-30 | 2015-05-06 | 上海力申科学仪器有限公司 | Lead-acid cell quick charge control circuit |
-
2014
- 2014-12-30 CN CN201420873155.1U patent/CN204391867U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600820A (en) * | 2014-12-30 | 2015-05-06 | 上海力申科学仪器有限公司 | Lead-acid cell quick charge control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |