CN103812198A - Reverse charging preventing circuit of battery charging - Google Patents
Reverse charging preventing circuit of battery charging Download PDFInfo
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- CN103812198A CN103812198A CN201410077927.5A CN201410077927A CN103812198A CN 103812198 A CN103812198 A CN 103812198A CN 201410077927 A CN201410077927 A CN 201410077927A CN 103812198 A CN103812198 A CN 103812198A
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- field effect
- effect transistor
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- charging
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a reverse charging preventing circuit of battery charging. One end of a first resistor in the circuit is connected with one end of a fuse, the other end of the first resistor, one end of a second resistor and a source electrode of a first field effect tube are connected, the other end of the second resistor, a grid electrode of the first field effect tube and a drain electrode of a third field effect tube are connected, a drain electrode of the first field effect tube, a grid electrode of the third field effect tube, one end of a third resistor, a drain electrode of the second field effect tube and a grid electrode of a fourth field effect tube are connected, a source electrode of the third field effect tube, the other end of the third resistor, a source electrode of the second field effect tube, one end of a fourth resistor and a source electrode of the fourth field effect tube are connected, a grid electrode of the second field effect tube, the other end of the fourth resistor and one end of a fifth resistor are connected, and the other end of the fifth resistor is connected with a negative pole of a diode. The circuit has the advantages of being small in energy loss, simple in an inverse charging preventing processing process and good in inversion charging prevention stability.
Description
Technical field
The present invention relates to the anti-circnit NOT of a kind of charging, especially relate to a kind of battery anti-circnit NOT that charges.
Background technology
Existing battery charging counnter attack circuit mainly contains two kinds: the anti-circnit NOT of the first is made up of a diode, this counnter attack circuit is because diode itself can produce the above voltage of 0.3V, so can produce very large energy loss in the time that large electric current charges to battery, thereby cause the heating of counnter attack diode serious, the charging interval lengthens, the anti-circnit NOT of the second is by two back-to-back being formed by connecting of field effect transistor, this anti-circnit NOT is when for cell anti-reverse, if charging input end is reverse or short circuit, this anti-circnit NOT cannot detect input terminal voltage or charging current, battery will directly enter charging process and damage thus, therefore this anti-circnit NOT need to coordinate with the single chip circuit of control program and uses, whether the single chip circuit first voltage to charging input end or charging current normally detects, then generate corresponding control signal and send to anti-circnit NOT, anti-circnit NOT determines whether cutting off battery charging according to control signal, realize thus the counnter attack protection to battery charging, this anti-circnit NOT need to coordinate single chip circuit and software program to use, counnter attack processing procedure more complicated, and counnter attack less stable.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of in battery charging process energy loss less, can not cause anti-circnit NOT heating serious, the charging interval can not lengthen, and counnter attack processing procedure is simple, the battery of the counnter attack good stability anti-circnit NOT that charges.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of battery anti-circnit NOT that charges, is characterized in that comprising the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the first field effect transistor, the second field effect transistor, the 3rd field effect transistor, the 4th field effect transistor, diode and fuse, one end of the first described resistance is connected with one end of described fuse and its link is anodal charging input end, the other end of the first described resistance, one end of the second described resistance is connected with the source electrode of the first described field effect transistor, the other end of the second described resistance, the grid of the first described field effect transistor is connected with the drain electrode of the 3rd described field effect transistor and its link is negative pole charging input end, the drain electrode of the first described field effect transistor, the grid of the 3rd described field effect transistor, one end of the 3rd described resistance, the drain electrode of the second described field effect transistor is connected with the grid of the 4th described field effect transistor, the source electrode of the 3rd described field effect transistor, the other end of the 3rd described resistance, the source electrode of the second described field effect transistor, one end of the 4th described resistance is connected with the source electrode of the 4th described field effect transistor, the grid of the second described field effect transistor, the other end of the 4th described resistance is connected with one end of the 5th described resistance, the other end of the 5th described resistance is connected with the negative pole of described diode, the drain electrode of the 4th described field effect is for connecting the negative pole of battery, and the other end of described fuse is for connecting the positive pole of battery.
The two ends of the second described resistance are parallel with the first electric capacity, and the two ends of the 3rd described resistance are parallel with the second electric capacity.
Compared with prior art, the invention has the advantages that the negative pole of battery to be charged is connected with the drain electrode of the 4th field effect, the positive pole of battery to be charged is connected with the other end of fuse, battery charge the anodal charging input end of anti-circnit NOT be connected with charging input end with negative pole charging input end after access input voltage, if the positive pole of charging input end and negative pole do not connect anti-or short circuit, now input voltage is normal, first input voltage is undertaken controlling the first field effect transistor conducting after voltage division processing by the first resistance and the second resistance, after the first field effect transistor conducting, control the 3rd field effect transistor and the 4th field effect transistor conducting, now battery to be charged two ends are communicated with charging input end, realize the charging of battery to be charged, after battery has charged, the second field effect transistor control the 3rd field effect transistor and the cut-off of the 4th field effect transistor realize charging and turn-off control, if the positive pole of charging input end and negative pole connect anti-or short circuit, now input voltage is undesired, input voltage is very little of zero, first input voltage is undertaken controlling the first field effect transistor cut-off after voltage division processing by the first resistance and the second resistance, now the 3rd field effect transistor and the cut-off of the 4th field effect transistor, battery to be charged two ends and charging input end disconnect, battery to be charged stops charging, realize the counnter attack protection to battery charging, circuit of the present invention in battery charging process owing to using field effect transistor control, so can not produce larger voltage, energy loss is less, can not cause anti-circnit NOT heating serious, charging interval can not lengthen, and realize counnter attack processing by hardware circuit, process is simple, counnter attack good stability,
When being parallel with the first electric capacity in the two ends of the second resistance, when the two ends of the 3rd resistance are parallel with the second electric capacity, the high-frequency interferencing signal in the first electric capacity and the anti-circnit NOT of the second electric capacity filtering, improves counnter attack circuit anti-interference ability.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of embodiment mono-;
Fig. 2 is the circuit diagram of embodiment bis-.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment mono-: as shown in the figure, a kind of battery anti-circnit NOT that charges, comprises the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the first field effect transistor T1, the second field effect transistor T2, the 3rd field effect transistor T3, the 4th field effect transistor T4, diode D1 and fuse FUSE1, one end of the first resistance R 1 is connected with one end of fuse FUSE1 and its link is anodal charging input end, the other end of the first resistance R 1, one end of the second resistance R 2 is connected with the source electrode of the first field effect transistor T1, the other end of the second resistance R 2, the grid of the first field effect transistor T1 is connected with the drain electrode of the 3rd field effect transistor T3 and its link is negative pole charging input end, the drain electrode of the first field effect transistor T1, the grid of the 3rd field effect transistor T3, one end of the 3rd resistance R 3, the drain electrode of the second field effect transistor T2 is connected with the grid of the 4th field effect transistor T4, the source electrode of the 3rd field effect transistor T3, the other end of the 3rd resistance R 3, the source electrode of the second field effect transistor T2, one end of the 4th resistance R 4 is connected with the source electrode of the 4th field effect transistor T4, the grid of the second field effect transistor T2, the other end of the 4th resistance R 4 is connected with one end of the 5th resistance R 5, the other end of the 5th resistance R 5 is connected with the negative pole of diode D1, the positive pole access switching signal of diode D1, switching signal control battery charges or closes, the drain electrode of the 4th field effect T4 is for connecting the negative pole of battery, and the other end of fuse is for connecting the positive pole of battery.
The operation principle of the present embodiment is: the negative pole of battery to be charged is connected with the drain electrode of the 4th field effect T4, and the positive pole of battery to be charged is connected with the other end of fuse.Battery charge the anodal charging input end of anti-circnit NOT be connected with charging input end with negative pole charging input end after access input voltage, if the positive pole of charging input end and negative pole do not connect anti-or short circuit, now input voltage is normal, first input voltage is undertaken controlling the first field effect transistor T1 conducting after voltage division processing by the first resistance R 1 and the second resistance R 2, after the first field effect transistor T1 conducting, control the 3rd field effect transistor T3 and the 4th field effect transistor T4 conducting, now battery to be charged two ends are communicated with charging input end, realize the charging of battery to be charged, after battery has charged, the second field effect transistor T2 controls the 3rd field effect transistor T3 and the 4th field effect transistor T4 cut-off realization charging shutoff is controlled, if the positive pole of charging input end and negative pole connect anti-or short circuit, now input voltage is undesired, input voltage is very little of zero, first input voltage is undertaken controlling the first field effect transistor T1 cut-off after voltage division processing by the first resistance R 1 and the second resistance R 2, now the 3rd field effect transistor T3 and the 4th field effect transistor T4 cut-off, battery to be charged two ends and charging input end disconnect, and battery to be charged stops charging, realize the counnter attack protection to battery charging.
Embodiment bis-: this example and embodiment mono-are basic identical, difference is only that the two ends that the two ends of the second resistance are parallel with the first capacitor C 1, the three resistance R 3 are parallel with the second capacitor C 2.In the present embodiment, increased the high-frequency interferencing signal in the first capacitor C 1 and the second capacitor C 2, the first capacitor C 1 and the anti-circnit NOT of the second capacitor C 2 filtering, improved counnter attack circuit anti-interference ability, the circuit of the present embodiment is stronger with respect to embodiment mono-its circuit stability.
Claims (2)
1. the battery anti-circnit NOT that charges, is characterized in that comprising the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the first field effect transistor, the second field effect transistor, the 3rd field effect transistor, the 4th field effect transistor, diode and fuse, one end of the first described resistance is connected with one end of described fuse and its link is anodal charging input end, the other end of the first described resistance, one end of the second described resistance is connected with the source electrode of the first described field effect transistor, the other end of the second described resistance, the grid of the first described field effect transistor is connected with the drain electrode of the 3rd described field effect transistor and its link is negative pole charging input end, the drain electrode of the first described field effect transistor, the grid of the 3rd described field effect transistor, one end of the 3rd described resistance, the drain electrode of the second described field effect transistor is connected with the grid of the 4th described field effect transistor, the source electrode of the 3rd described field effect transistor, the other end of the 3rd described resistance, the source electrode of the second described field effect transistor, one end of the 4th described resistance is connected with the source electrode of the 4th described field effect transistor, the grid of the second described field effect transistor, the other end of the 4th described resistance is connected with one end of the 5th described resistance, the other end of the 5th described resistance is connected with the negative pole of described diode, the drain electrode of the 4th described field effect is for connecting the negative pole of battery, and the other end of described fuse is for connecting the positive pole of battery.
2. a kind of battery according to claim 1 anti-circnit NOT that charges, is characterized in that the two ends of the second described resistance are parallel with the first electric capacity, and the two ends of the 3rd described resistance are parallel with the second electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077927.5A CN103812198B (en) | 2014-03-05 | 2014-03-05 | A kind of battery charges anti-circnit NOT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077927.5A CN103812198B (en) | 2014-03-05 | 2014-03-05 | A kind of battery charges anti-circnit NOT |
Publications (2)
| Publication Number | Publication Date |
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| CN103812198A true CN103812198A (en) | 2014-05-21 |
| CN103812198B CN103812198B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410077927.5A Expired - Fee Related CN103812198B (en) | 2014-03-05 | 2014-03-05 | A kind of battery charges anti-circnit NOT |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10285810A (en) * | 1997-04-07 | 1998-10-23 | Seiko Instr Inc | Charge and discharge controlling circuit and charging system power device |
| KR20080023887A (en) * | 2006-09-12 | 2008-03-17 | 주식회사 만도 | Reverse voltage prevention apparatus of pwm motor |
| CN101174770A (en) * | 2007-11-21 | 2008-05-07 | 中兴通讯股份有限公司 | Charging protection method and device |
| US20110175573A1 (en) * | 2008-08-28 | 2011-07-21 | Tomoyoshi Ueki | Assembled battery and assembled battery control system |
| CN102545164A (en) * | 2010-12-29 | 2012-07-04 | 广东易事特电源股份有限公司 | Driving circuit of switch unit of reverse-connection preventing protection circuit for solar charge controller |
| CN203339676U (en) * | 2013-07-16 | 2013-12-11 | 长沙市博巨兴电子科技有限公司 | Reverse-connection and short-circuit protection circuit for batteries |
| CN203839998U (en) * | 2014-03-05 | 2014-09-17 | 宁波市安博应急品有限公司 | Battery charging reverse-connection protecting circuit |
-
2014
- 2014-03-05 CN CN201410077927.5A patent/CN103812198B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10285810A (en) * | 1997-04-07 | 1998-10-23 | Seiko Instr Inc | Charge and discharge controlling circuit and charging system power device |
| KR20080023887A (en) * | 2006-09-12 | 2008-03-17 | 주식회사 만도 | Reverse voltage prevention apparatus of pwm motor |
| CN101174770A (en) * | 2007-11-21 | 2008-05-07 | 中兴通讯股份有限公司 | Charging protection method and device |
| US20110175573A1 (en) * | 2008-08-28 | 2011-07-21 | Tomoyoshi Ueki | Assembled battery and assembled battery control system |
| CN102545164A (en) * | 2010-12-29 | 2012-07-04 | 广东易事特电源股份有限公司 | Driving circuit of switch unit of reverse-connection preventing protection circuit for solar charge controller |
| CN203339676U (en) * | 2013-07-16 | 2013-12-11 | 长沙市博巨兴电子科技有限公司 | Reverse-connection and short-circuit protection circuit for batteries |
| CN203839998U (en) * | 2014-03-05 | 2014-09-17 | 宁波市安博应急品有限公司 | Battery charging reverse-connection protecting circuit |
Non-Patent Citations (1)
| Title |
|---|
| 成本权等: "HXD1C 型机车蓄电池防反接充电的设计改进", 《电力机车与城轨车辆》 * |
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| CN103812198B (en) | 2015-09-02 |
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Address after: 315212, 118, Zhenhai Avenue, Ningbo, Zhejiang Applicant after: Ningbo City Anbo New Energy Technology Co., Ltd. Address before: 315212, 118, Zhenhai Avenue, Ningbo, Zhejiang Applicant before: NINGBO AMBON EMERGENCY PRODUCTS CO., LTD. |
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| CB03 | Change of inventor or designer information |
Inventor after: He Jianfen Inventor after: Xu Naijun Inventor before: Xu Naijun Inventor before: Huang Jie Inventor before: Wang Yijun Inventor before: Bao Jianqiang Inventor before: Ran Zhilin Inventor before: Zhan Xingxing Inventor before: Zhuo Weibo Inventor before: He Jianfen Inventor before: Zhang Zhijian Inventor before: Wang Zhefu Inventor before: Yao Xu |
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Free format text: CORRECT: INVENTOR; FROM: XU NAIJUN BAO JIANQIANG RAN ZHILIN ZHAN XINGXING ZHUO WEIBO HE JIANFEN ZHANG ZHIJIAN WANG ZHEFU YAO XU HUANG JIE WANG YIJUN TO: HE JIANFEN XU NAIJUN Free format text: CORRECT: APPLICANT; FROM: NINGBO ANBO EMERGENCY PRODUCTS CO., LTD. TO: NINGBO CITY ANBO NEW ENERGY TECHNOLOGY CO., LTD. |
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Granted publication date: 20150902 Termination date: 20200305 |
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| CF01 | Termination of patent right due to non-payment of annual fee |