CN105024442B - A kind of battery charging circuit with charge protection - Google Patents
A kind of battery charging circuit with charge protection Download PDFInfo
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- CN105024442B CN105024442B CN201510406340.9A CN201510406340A CN105024442B CN 105024442 B CN105024442 B CN 105024442B CN 201510406340 A CN201510406340 A CN 201510406340A CN 105024442 B CN105024442 B CN 105024442B
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Abstract
The invention discloses a kind of battery charging circuits with charge protection; include the bridge rectifier being made of first to fourth rectifier diode and charger IC circuits, further includes first to third diode, the first to the 8th capacitance; first to the 9th resistance and the first, second triode.The circuit design structure of the present invention is simple, easy to use, and the effective size for controlling charging current will not cause accumulator to generate heat even if charging for a long time, avoids pole plate from falling off, is broken, short circuit is so that cause the accidents such as explosion, burning.
Description
Technical field
The invention discloses a kind of battery charging circuits with charge protection, are related to battery charging circuit design skill
Art field.
Background technology
After battery discharging, with direct current by the direction opposite with discharge current by accumulator, it is made to resume work energy
Power, this process claim to charge the battery.When accumulator charges, anode is connected with positive pole, battery cathode and power supply
Cathode is connected, and charge power supply voltage necessarily is greater than the total electromotive force of battery.Charging modes have constant current charge and constant voltage charging
Two kinds.
There is the solution for ionization such as a large amount of sulfuric acid inside accumulator, when plugging in, electric current just passes through the lead of the inside
Plate（Some batteries are not lead）Ionization solution thus converts electrical energy into chemical energy；If it is desired that with solution will be converted into
Electric energy is transferred out by electrode.Normal charge system is according to internationally recognized rule of thumb design before 1940.Wherein
Foremost is exactly " ampere-hour rule "：Accumulator ampere-hour number to be charged is not to be exceeded in charging current amperage.It is practical
On, the generation of the Wen Sheng and gas of the speed of normal charge by accumulator in charging process limit.This phenomenon is to electric power storage
Shortest time necessary to the charging of pond is of great significance.
The charging voltage and electric current of each battery are all different, by taking 12V lead-acid batteries as an example, optimum charging voltage
For 14.5-15V.Charging stream is typically all 10% i.e. 10 hour rates of capacity.Such as the battery of 100AH12V, optimum charging voltage
It is respectively with electric current:15V 10A.
The accumulator of one 100AH, charging current maximum cannot be more than 30A.When cycle charging, the highest of charger offer
Voltage is answered restricted, and the charging voltages of 6V batteries is 7.2-7.5V, and 12V battery charging voltages are 14.4-15V, and charging is maximum
Electric current is not more than the 30%A of rated capacity value（For example the accumulator maximum charging current of 2A.H cannot be more than 2 × 0.3=0.6 peace
Training）；It is advisable with 10 hours charge rates（For example the accumulator of 2A.H is advisable with 0.2 ampere）If charging current is excessive, accumulator
Easily fever causes pole plate to fall off, is broken, short circuit is so that cause the accidents such as explosion, burning.Charging time（Hour）=rechargeable battery
Capacity（mAh）/ charging current（mA）* 1.5 coefficient.
The prior art situation long to the accumulator charging time does not have good safeguard measure, specific circuit structure to set
Meter also also has the space being further simplified.
Invention content
The technical problem to be solved by the present invention is to：In view of the drawbacks of the prior art, it provides a kind of with charge protection
Battery charging circuit.
The present invention uses following technical scheme to solve above-mentioned technical problem：
A kind of battery charging circuit with charge protection, including rectification circuit and charger IC circuits further include
One to third diode, the first to the 8th capacitance, the first to the 9th resistance and the first, second triode, wherein
The first input end of the first capacitance connection rectification circuit, the second of the first resistor connection rectification circuit are defeated
Enter end, the first output end of rectification circuit by the second capacitance respectively with one end of third capacitance, the anode of the first diode, the
One end of four capacitances, the cathode of third diode, accumulator cathode be connected；The second output terminal of rectification circuit is respectively with
One end of two resistance, one end of 3rd resistor, the second diode anode be connected, the other end of second resistance and the one or two pole
The cathode of pipe is connected, and the other end of 3rd resistor is connected with one end of the other end of third capacitance, the 5th resistance respectively；The
The cathode of two diodes is connected with one end of the 4th resistance, charger IC circuits respectively, and charger IC circuits are also respectively with
One end of seven capacitances, one end of the 8th capacitance, third diode anode be connected；The other end of 4th resistance is respectively with the 6th
One end of resistance, the first triode collector be connected, the base stage of the first triode is connected with the other end of the 5th resistance,
The emitter of first triode is connected with the other end of the 4th capacitance, the base stage of the other end and the second triode of the 6th resistance
It is connected, the collector of the second triode is connected after the 7th resistance, the 8th resistance with one end of the 6th capacitance successively, the
The other end of six capacitances is connected with the anode of accumulator；The emitter of third transistor is by the 5th capacitance and the 7th capacitance
The other end is connected, and the other end of the 8th capacitance is connected with the other end of the 9th resistance.
As present invention further optimization scheme, the rectification circuit is made of first to fourth rectifier diode
The cathode of bridge rectifier, first rectifier diode is connected with the cathode of the second rectifier diode as rectification circuit
First input end, the anode of the second rectifier diode be connected with the cathode of the 4th rectifier diode as rectification circuit the
Two output ends, the 4th rectifier diode anode be connected with the anode of third rectifier diode it is defeated as the second of rectification circuit
Enter end, the cathode of third rectifier diode is connected with the anode of the first rectifier diode to be exported as the first of rectification circuit
End.
As present invention further optimization scheme, the charger IC circuits include MAX712/713 controllers control core
Piece.
As present invention further optimization scheme, first diode is zener diode.
As present invention further optimization scheme, the accumulator is lead-acid accumulator.
The present invention has the following technical effects using above technical scheme is compared with the prior art：The circuit of the present invention is set
Simple in structure, easy to use, the effective size for controlling charging current is counted, even if charging for a long time, will not cause accumulator
Fever avoids pole plate from falling off, is broken, short circuit is so that cause the accidents such as explosion, burning.
Description of the drawings
Fig. 1 is the electrical block diagram of the present invention；
Wherein：VD1 to VD4 is respectively first to fourth rectifier diode, and D1 to D3 is respectively first to third diode,
C1 to C8 is respectively the first to the 8th capacitance, and R1 to R9 is respectively the first to the 9th resistance, and T1, T2 are respectively the first, second three
Pole pipe, U are charger IC circuits, and E is accumulator.
Specific implementation mode
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Technical scheme of the present invention is described in further detail below in conjunction with the accompanying drawings：
The electrical block diagram of figure of the present invention is as shown in Figure 1, the battery charging circuit with charge protection, packet
Rectification circuit and charger IC circuits are included, further includes first to third diode, the first to the 8th capacitance, the first to the 9th electricity
Resistance and the first, second triode, wherein the first input end of the first capacitance connection rectification circuit, the first resistor
The second input terminal of rectification circuit is connected, the first output end of rectification circuit passes through one of the second capacitance respectively with third capacitance
End, the anode of the first diode, one end of the 4th capacitance, the cathode of third diode, the cathode of accumulator are connected；Rectified current
The second output terminal on road is connected with the anode of one end of second resistance, one end of 3rd resistor, the second diode respectively, and second
The other end of resistance is connected with the cathode of the first diode, the other end of 3rd resistor respectively with the other end of third capacitance,
One end of 5th resistance is connected；The cathode of second diode is connected with one end of the 4th resistance, charger IC circuits respectively,
Charger IC circuits are also connected with one end of the 7th capacitance, one end of the 8th capacitance, the anode of third diode respectively；4th
The other end of resistance is connected with the collector of one end of the 6th resistance, the first triode respectively, the base stage of the first triode with
The other end of 5th resistance is connected, and the emitter of the first triode is connected with the other end of the 4th capacitance, the 6th resistance
The other end is connected with the base stage of the second triode, and the collector of the second triode is successively after the 7th resistance, the 8th resistance
It is connected with one end of the 6th capacitance, the other end of the 6th capacitance is connected with the anode of accumulator；The transmitting of third transistor
Pole is connected by the 5th capacitance with the other end of the 7th capacitance, and the other end of the 8th capacitance is connected with the other end of the 9th resistance
It connects.
In one particular embodiment of the present invention, the rectification circuit is made of first to fourth rectifier diode
The cathode of bridge rectifier, first rectifier diode is connected with the cathode of the second rectifier diode as rectification circuit
First input end, the anode of the second rectifier diode be connected with the cathode of the 4th rectifier diode as rectification circuit the
Two output ends, the 4th rectifier diode anode be connected with the anode of third rectifier diode it is defeated as the second of rectification circuit
Enter end, the cathode of third rectifier diode is connected with the anode of the first rectifier diode to be exported as the first of rectification circuit
End.
As the preferred embodiment of embodiment, using the MAX712/713 of Maxim companies product in the charger IC circuits
Controller controls chip.
As the preferred embodiment of embodiment, first diode is zener diode；The accumulator is lead acid storage battery
Pond.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
It makes a variety of changes.The above described is only a preferred embodiment of the present invention, not making limit in any form to the present invention
System, although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention, any skill for being familiar with this profession
Art personnel, without departing from the scope of the present invention, when the technology contents using the disclosure above make it is a little change or
It is modified to the equivalent embodiment of equivalent variations, as long as being without departing from technical solution of the present invention content, technology according to the present invention is real
Matter, within the spirit and principles in the present invention, to any simple modification, equivalent replacement and improvement made by above example
Deng still falling within the protection domain of technical solution of the present invention.
Claims (5)
1. a kind of battery charging circuit with charge protection, it is characterised in that：Including rectification circuit and charger IC circuits,
Further include first to third diode, the first to the 8th capacitance, the first to the 9th resistance and the first, second triode,
In, the first input end of the first capacitance connection rectification circuit, first resistor connects the second input terminal of rectification circuit, rectification circuit
The first output end by the second capacitance respectively with one end of third capacitance, the anode of the first diode, the 4th capacitance one end,
The cathode of third diode, one end of the 9th resistance, accumulator cathode be connected；The second output terminal of rectification circuit respectively with
One end of second resistance, one end of 3rd resistor, the second diode anode be connected, the other end of second resistance and the one or two
The cathode of pole pipe is connected, and the other end of 3rd resistor is connected with one end of the other end of third capacitance, the 5th resistance respectively；
The cathode of second diode is connected with one end of the 4th resistance, charger IC circuits respectively, charger IC circuits also respectively with
One end of 7th capacitance, one end of the 8th capacitance, the anode of third diode are connected；The other end of 4th resistance is respectively with
One end of six resistance, the first triode collector be connected, the base stage of the first triode is connected with the other end of the 5th resistance
It connects, the emitter of the first triode is connected with the other end of the 4th capacitance, the other end of the 6th resistance and the second triode
Base stage is connected, and the collector of the second triode is connected after the 7th resistance, the 8th resistance with one end of the 6th capacitance successively
It connects, the other end of the 6th capacitance is connected with the anode of accumulator；The emitter of second triode passes through the 5th capacitance and the 7th
The other end of capacitance is connected, and the other end of the 8th capacitance is connected with the other end of the 9th resistance.
2. a kind of battery charging circuit with charge protection as described in claim 1, it is characterised in that：The rectified current
Road is the bridge rectifier being made of first to fourth rectifier diode, the cathode of the first rectifier diode and the second rectification two
The cathode of pole pipe is connected the first input end as rectification circuit, anode and the 4th rectifier diode of the second rectifier diode
The second output terminal that is connected as rectification circuit of cathode, the anode of the 4th rectifier diode with third rectifier diode just
Pole is connected the second input terminal as rectification circuit, the positive phase of the cathode of third rectifier diode and the first rectifier diode
It is connected to the first output end of rectification circuit.
3. a kind of battery charging circuit with charge protection as described in claim 1, it is characterised in that：The charger
IC circuits include MAX712/713 controllers control chip.
4. a kind of battery charging circuit with charge protection as described in claim 1, it is characterised in that：Described 1st
Pole pipe is zener diode.
5. a kind of battery charging circuit with charge protection as described in claim 1, it is characterised in that：The accumulator
For lead-acid accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406340.9A CN105024442B (en) | 2015-07-13 | 2015-07-13 | A kind of battery charging circuit with charge protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510406340.9A CN105024442B (en) | 2015-07-13 | 2015-07-13 | A kind of battery charging circuit with charge protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105024442A CN105024442A (en) | 2015-11-04 |
| CN105024442B true CN105024442B (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510406340.9A Active CN105024442B (en) | 2015-07-13 | 2015-07-13 | A kind of battery charging circuit with charge protection |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576783A (en) * | 2016-01-21 | 2016-05-11 | 苏州经贸职业技术学院 | Charging circuit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7859224B2 (en) * | 2005-05-26 | 2010-12-28 | Shop-Vac Corporation | Charge control circuit for a vehicle vacuum cleaner battery |
| CN101325343A (en) * | 2008-04-07 | 2008-12-17 | 杭州直通电子有限公司 | Energy-storing type charger |
| CN102830783B (en) * | 2012-09-25 | 2015-05-06 | 刘举柱 | Intelligent power line of notebook computer power |
| CN104600818A (en) * | 2013-10-30 | 2015-05-06 | 四川中时代科技有限公司 | Fast charging circuit for batteries |
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Effective date of registration: 20221010 Address after: Factory Building 6 #, Wujiang Comprehensive Bonded Area, No. 688, Pangjin Road, Jiangling Street, Wujiang District, Suzhou City, Jiangsu Province, 215222 Patentee after: SUZHOU DEBO NEW ENERGY Co.,Ltd. Address before: 215000 No. 287 Xuefu Road, North International Education Park, Suzhou high tech Zone, Jiangsu Patentee before: SUZHOU INSTITUTE OF TRADE & COMMERCE |
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