CN104600820B - Lead-acid cell quick charge control circuit - Google Patents
Lead-acid cell quick charge control circuit Download PDFInfo
- Publication number
- CN104600820B CN104600820B CN201410854496.9A CN201410854496A CN104600820B CN 104600820 B CN104600820 B CN 104600820B CN 201410854496 A CN201410854496 A CN 201410854496A CN 104600820 B CN104600820 B CN 104600820B
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- Prior art keywords
- lead
- comparator
- acid battery
- circuit
- quick charge
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- 239000002253 acid Substances 0.000 title claims abstract description 49
- 230000005611 electricity Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- H02J7/045—
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a lead-acid cell quick charge control circuit. The lead-acid cell quick charge control circuit comprises a power supply, a rectification filter circuit, a first step-up/step-down module, a second step-on/step-down module, a lead-acid cell, a pulse trigger circuit, a first comparator, a second comparator and an MOS (metal oxide semiconductor) transistor. The lead-acid cell quick charge control circuit can control charging of the lead-acid cell, namely, start a quick charge mode when the lead-acid battery needs charging, and stop the quick charge mode and enter a floating charge mode when the lead-acid cell is fully charged.
Description
Technical field
The present invention relates to control circuit, particularly to a kind of lead-acid battery quick charge control circuit.
Background technology
It is uncontrollable that general lead-acid battery charges, charging process always；If when lead-acid battery is full of still
The service life of lead-acid battery will be greatly reduced with high current trickle charge it is also possible to there are some unpredictable events
Barrier.
Content of the invention
It is an object of the invention to provide the higher lead-acid battery of a kind of simple, controllability, safety and stability is fast
Fast charging control circuit.
For solving above-mentioned technical problem, lead-acid battery quick charge control circuit of the present invention, including power supply, rectifying and wave-filtering electricity
Road, the first lifting/voltage reducing module, the second lifting/voltage reducing module, lead-acid battery, pulsed triggering circuit, first comparator, second compare
Device, on-off circuit and mos pipe；The outfan v1 of wherein said first lifting/voltage reducing module is through first resistor r1 and the first stabilivolt
D1 is grounded, and the positive pole of described first comparator is connected between described first resistor r1 and described first stabilivolt d1；Described pulse
The pulse output pin of triggers circuit is connected with the negative pole of described first comparator；The output pin of described first comparator with described
The grid of mos pipe connects；Output voltage terminal v2, the 5th resistance r5 of described second lifting/voltage reducing module and the 3rd stabilivolt d3 number
Word is grounded, and the positive pole of described second comparator is connected between described 5th resistance r5 and described 3rd stabilivolt d3；Described plumbic acid
Battery terminal connections negative pole is connected with digitally；Described lead-acid battery connection end positive pole is through the 6th resistance r6 and variable resistance r7 number
Word is grounded, and the negative pole of the second comparator is connected on the convertible tip of described variable resistance r7；The output pin of described second comparator and institute
The importation stating on-off circuit connects, and the output voltage of described on-off circuit is powered to described first comparator；Described mos pipe
Drain electrode digital grounding, the source ground of described mos pipe.Described power supply is alternating current.
Lead-acid battery quick charge control circuit of the present invention can control the charging of lead-acid battery, and that is, lead-acid battery needs to fill
Then open fast charge mode when electric, then close fast charge mode when lead-acid battery is full of and enter floating charge pattern.
Brief description
Fig. 1 is lead-acid battery quick charge control circuit schematic diagram of the present invention.
Description of reference numerals in lead-acid battery quick charge control circuit accompanying drawing of the present invention:
1- power supply 2- current rectifying and wave filtering circuit 3- the first lifting/voltage reducing module
4- the second lifting/voltage reducing module 5- lead-acid battery 6- pulsed triggering circuit
7- first comparator 8- the second comparator 9- on-off circuit
Specific embodiment
Below in conjunction with the accompanying drawings lead-acid battery quick charge control circuit of the present invention is described in further detail.
As shown in figure 1, lead-acid battery quick charge control circuit of the present invention, including alternating-current power supply 1, current rectifying and wave filtering circuit
2nd, the first lifting/voltage reducing module 3, the second lifting/voltage reducing module 4, lead-acid battery 5, pulsed triggering circuit 6, first comparator 7, second
Comparator 8, on-off circuit 9 and mos pipe.
Do not connect alternating current and lead-acid battery 5, access unidirectional current vmax in lead-acid battery 5 connection end, magnitude of voltage is plumbic acid electricity
The maximum charging voltage in pond 5, adjusting variable resistance r7 and making v4 is a magnitude of voltage；Then changing galvanic magnitude of voltage again is v1
(voltage as lead-acid battery 5 is 12v, then this value is 11.5v), adjusts variable resistance r3, makes the magnitude of voltage of v5 and v4 equal.
Incoming transport electricity and lead-acid battery 5, when lead-acid battery 5 needs to charge, that is, the voltage of lead-acid battery 5 is less than v1,
Now the magnitude of voltage of v5 is more than v4, then the second comparator 8 output positive voltage, and on-off circuit 9 is started working, and output voltage vcc gives
First comparator 7 uses；Pulsed triggering circuit 6 exports the negative pole of pulse input first comparator 7 and the positive pole of first comparator 7
Voltage is compared, now first comparator 7 output pulsed drive mos pipe, then digital grounding and ground connection are connected, i.e. lead-acid battery
5 minus earth, lead-acid battery 5 enters fast charge mode.
When lead-acid battery 5 is fully charged, that is, the voltage of lead-acid battery 5 is vmax, and now the voltage of v5 is less than v4, the second ratio
It is 0 compared with the output voltage of device 8, on-off circuit 9 quits work, that is, output voltage vcc is 0, and first comparator 7 does not work, mos manages
It is not turned on.The negative pole of lead-acid battery 5 is connected with ground gnd through diode and resistance, and charging current now is less, quick charge
Pattern terminates, that is, enter floating charge pattern.The main chip of wherein pulsed triggering circuit 6 is ne555 chip.
Lead-acid battery quick charge control circuit of the present invention can control the charging of lead-acid battery, and that is, lead-acid battery needs to fill
Then open fast charge mode when electric, then close fast charge mode when lead-acid battery is full of and enter floating charge pattern.
Below the preferred embodiment to the invention is illustrated, but the invention be not limited to described
Embodiment, those of ordinary skill in the art also can make without prejudice on the premise of the invention spirit a variety of equivalent
Modification or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (2)
1. lead-acid battery quick charge control circuit is it is characterised in that include power supply, current rectifying and wave filtering circuit, the first lifting/lowering pressing mold
Block, the second lifting/voltage reducing module, lead-acid battery, pulsed triggering circuit, first comparator, the second comparator, on-off circuit and mos
Pipe；Wherein
The outfan v1 of described first lifting/voltage reducing module is grounded through first resistor r1 and the first stabilivolt d1, and described first compares
The positive pole of device is connected between described first resistor r1 and described first stabilivolt 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 mos pipe；
The output voltage terminal v2 of described second lifting/voltage reducing module is through the 5th resistance r5 and the 3rd stabilivolt d3 digital grounding, described
The positive pole of the second comparator is connected between described 5th resistance r5 and described 3rd stabilivolt d3；
Described lead-acid battery connection end positive pole is through the 6th resistance r6 and variable resistance r7 digital grounding, the negative pole of the second comparator
It is connected on the convertible tip of described variable resistance r7；
Described lead-acid battery connection end negative pole be digitally connected；
The output pin of described second comparator is connected with the importation of described on-off circuit, the output voltage of described on-off circuit
Power to described first comparator；
The drain electrode digital grounding of described mos pipe, the source ground of described mos pipe.
2. lead-acid battery quick charge control circuit according to claim 1 is it is characterised in that described power supply is exchange
Electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854496.9A CN104600820B (en) | 2014-12-30 | 2014-12-30 | Lead-acid cell quick charge control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854496.9A CN104600820B (en) | 2014-12-30 | 2014-12-30 | Lead-acid cell quick charge control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104600820A CN104600820A (en) | 2015-05-06 |
| CN104600820B true CN104600820B (en) | 2017-01-18 |
Family
ID=53126424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410854496.9A Active CN104600820B (en) | 2014-12-30 | 2014-12-30 | Lead-acid cell quick charge control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104600820B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5396163A (en) * | 1991-03-13 | 1995-03-07 | Inco Limited | Battery charger |
| US5617007A (en) * | 1994-08-17 | 1997-04-01 | International Business Machines Corporation | Battery charging method and apparatus using current control |
| JP4380747B2 (en) * | 2007-07-25 | 2009-12-09 | ソニー株式会社 | Charger |
| CN101572420B (en) * | 2008-04-30 | 2011-05-04 | 冉茂鑫 | Current type double-input uninterrupted switch power supply |
| CN204391867U (en) * | 2014-12-30 | 2015-06-10 | 上海力申科学仪器有限公司 | Lead-acid battery quick charge control circuit |
-
2014
- 2014-12-30 CN CN201410854496.9A patent/CN104600820B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104600820A (en) | 2015-05-06 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |