CN103595102B - A kind of super capacitor equalizer circuit - Google Patents
A kind of super capacitor equalizer circuit Download PDFInfo
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- CN103595102B CN103595102B CN201310603428.0A CN201310603428A CN103595102B CN 103595102 B CN103595102 B CN 103595102B CN 201310603428 A CN201310603428 A CN 201310603428A CN 103595102 B CN103595102 B CN 103595102B
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Abstract
A novel super capacitor equalizer circuit, comprising: control circuit, resistance, triode, super capacitor; Described control circuit is composed in series by operational amplifier and resistance R3; Reference voltage inputs to the negative input end of operational amplifier through R1, the positive input termination VCC of operational amplifier, its output is connected with one end of R3 by wire, the other end of R3 is connected with the base stage of triode, the emitter of triode takes back collector electrode to triode by wire through super capacitor and resistance R4, one end of resistance R2 is connected to the negative input end of operational amplifier, its other end is connected to the collector electrode of triode, the positive power terminal of described operational amplifier meets VCC, its negative power source terminal ground connection; The invention provides that a kind of structure is simple, the reliable a kind of novel super capacitor equalizer circuit of working stability.
Description
Technical field
The present invention relates to supercapacitor technologies field, in particular a kind of super capacitor equalizer circuit.
Background technology
Along with the outstanding request of environmental problem and the development of new technology, new-energy automobile, special vehicle arise at the historic moment, these vehicle launch electric power systems use super capacitor to solve moment high-power problem in a large number, thus significantly improving service lifetime of accumulator, the technology of pressure equalization for super capacitor is current urgent problem.
The rated voltage of ultracapacitor is very low, needs a large amount of series connection in the application.Owing to often needing big current charge and discharge in application, on each monolithic capacitor therefore in series connection, whether voltage is unanimously vital.Affect the factor whether ultracapacitor voltage divide equally to mainly contain: capacitance, ESR, leakage current etc., although the impact that ultracapacitor is divided equally at the voltage of these parameters of application initial stage on ultracapacitor is smaller, but in the middle and later periods of supercapacitor applications, discreteness along with these parameters becomes large, the impact of dividing equally ultracapacitor voltage is increasing, finally causes the sharply shortening in ultracapacitor life-span.If do not take necessary all pressures measure, voltage on each monolithic capacitor can be caused comparatively large, and it is worthless for taking more serial number to solve problem.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides that a kind of structure is simple, the reliable a kind of super capacitor equalizer circuit of working stability.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of super capacitor equalizer circuit, comprising: control circuit, resistance, triode, super capacitor; Described control circuit is composed in series by operational amplifier and resistance R3; Reference voltage inputs to the negative input end of operational amplifier through R1, the positive input termination VCC of operational amplifier, its output is connected with one end of R3 by wire, the other end of R3 is connected with the base stage of triode, the emitter of triode takes back collector electrode to triode by wire through super capacitor and resistance R4, one end of resistance R2 is connected to the negative input end of operational amplifier, the other end of resistance R2 is connected to the collector electrode of triode, the positive power terminal of described operational amplifier meets VCC, its negative power source terminal ground connection; Described reference voltage is super capacitor protection voltage, and super capacitor two ends connect VCC and ground respectively; Described control circuit, for gathering super-capacitor voltage value;
This novel super capacitor equalizer circuit, workflow is:
When super-capacitor voltage reaches voltage reference value Vc1, control circuit conducting, by the control to Vc1 and discharge curve, makes equalizing current start from scratch with the non-linear increase of super capacitor both end voltage; Also by multiplication factor and the resistance R2 of triode, equalizing current is started from scratch linearly to be increased with super capacitor both end voltage;
When super-capacitor voltage reaches voltage reference value Vc2, equalizing current reaches maximum, and equalizing current no longer increases with super capacitor both end voltage and increases.
Beneficial effect of the present invention is: when super capacitor monomer voltage did not reach pressure point Vc2, equalizer circuit is started working and is improved and all presses situation, because circuit is not according to the work of maximum current point, not only reaches the effect of all pressing, also reduce the l loss of equalizer circuit simultaneously; When super capacitor monomer two ends reach voltage limit, circuit releases energy rapidly, thus optimizes super capacitor equalizer circuit.
Accompanying drawing explanation
This figure has accompanying drawing 2 width.
Fig. 1 is the comparison diagram of traditional equilibrium curve and equilibrium curve of the present invention, and a is traditional equilibrium curve, and b is equilibrium curve of the present invention;
Fig. 2 is super capacitor equalizer circuit figure.
Embodiment
Below in conjunction with the present embodiment, the present invention is further described:
A kind of super capacitor equalizer circuit, comprising: control circuit, resistance, triode, super capacitor; Described control circuit is composed in series by operational amplifier and resistance R3; Reference voltage inputs to the negative input end of operational amplifier through R1, the positive input termination VCC of operational amplifier, its output is connected with one end of R3 by wire, the other end of R3 is connected with the base stage of triode, the emitter of triode takes back collector electrode to triode by wire through super capacitor and resistance R4, one end of resistance R2 is connected to the negative input end of operational amplifier, the other end of resistance R2 is connected to the collector electrode of triode, the positive power terminal of described operational amplifier meets VCC, its negative power source terminal ground connection; Described reference voltage is super capacitor protection voltage, and super capacitor two ends connect VCC and ground respectively; Described control circuit, for gathering super-capacitor voltage value;
This novel super capacitor equalizer circuit, workflow is:
When super-capacitor voltage reaches voltage reference value Vc1, control circuit conducting, by the control to Vc1 and discharge curve, makes equalizing current start from scratch with the non-linear increase of super capacitor both end voltage; Also by multiplication factor and the resistance R2 of triode, equalizing current is started from scratch linearly to be increased with super capacitor both end voltage;
When super-capacitor voltage reaches voltage reference value Vc2, equalizing current reaches maximum, and equalizing current no longer increases with super capacitor both end voltage and increases.
Equalizing current can be increased to maximum according to the linearity curve in Fig. 2, also can be increased to maximum according to the nonlinear curve in Fig. 2.
Claims (1)
1. a super capacitor equalizer circuit, comprising: control circuit, resistance, triode, super
Electric capacity; Described control circuit is composed in series by operational amplifier and resistance R3; Reference
Voltage inputs to the negative input end of operational amplifier through R1, the positive input termination of operational amplifier
VCC, its output is connected with one end of R3 by wire, the other end of R3 and triode
Base stage is connected, and the emitter of triode is taken back to three through super capacitor and resistance R4 by wire
The collector electrode of pole pipe, an end of resistance R2 is connected to the negative input end of operational amplifier, resistance R2
The other end be connected to the collector electrode of triode, the positive power terminal of described operational amplifier connects
VCC, its negative power source terminal ground connection; Described reference voltage is super capacitor protection voltage,
Super capacitor two ends connect VCC and ground respectively; Described control circuit, for gathering super capacitor
Magnitude of voltage;
Super capacitor equalizer circuit, workflow is:
When super-capacitor voltage reaches voltage reference value Vc1, control circuit conducting, by right
The control of Vc1 and discharge curve, makes equalizing current start from scratch non-with super capacitor both end voltage
Linear increase; Or by multiplication factor and the resistance R2 of triode, make equalizing current from zero
Start linearly to increase with super capacitor both end voltage;
When super-capacitor voltage reached pressure point Vc2, equalizing current reached maximum, and all
Current voltage no longer increases with super capacitor both end voltage and increases;
Voltage reference value Vc1 < crosses pressure point Vc2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310603428.0A CN103595102B (en) | 2013-11-23 | 2013-11-23 | A kind of super capacitor equalizer circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310603428.0A CN103595102B (en) | 2013-11-23 | 2013-11-23 | A kind of super capacitor equalizer circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103595102A CN103595102A (en) | 2014-02-19 |
| CN103595102B true CN103595102B (en) | 2016-01-20 |
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| CN201310603428.0A Active CN103595102B (en) | 2013-11-23 | 2013-11-23 | A kind of super capacitor equalizer circuit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186662A (en) * | 2015-09-01 | 2015-12-23 | 武汉朗德电气有限公司 | Voltage-sharing protection circuit of high-current low-voltage quiescent-current supercapacitor |
| CN107707111A (en) * | 2017-11-24 | 2018-02-16 | 威创集团股份有限公司 | A kind of capacitor voltage equalizing circuit and circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6806686B1 (en) * | 2003-04-25 | 2004-10-19 | Maxwell Technologies, Inc. | Charge balancing circuit |
| CN202197226U (en) * | 2011-09-14 | 2012-04-18 | 南京天溯自动化控制系统有限公司 | Power station direct current power supply device based on super capacitor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10120A (en) * | 1853-10-11 | Yellakd foreman | ||
| WO2003100939A2 (en) * | 2002-05-20 | 2003-12-04 | Good Ideas Llc | Ultracapacitor balancing circuit |
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2013
- 2013-11-23 CN CN201310603428.0A patent/CN103595102B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6806686B1 (en) * | 2003-04-25 | 2004-10-19 | Maxwell Technologies, Inc. | Charge balancing circuit |
| CN202197226U (en) * | 2011-09-14 | 2012-04-18 | 南京天溯自动化控制系统有限公司 | Power station direct current power supply device based on super capacitor |
Non-Patent Citations (1)
| Title |
|---|
| 超级电容器组均衡充电系统;杨威等;《电工技术学报》;20071031;第22卷(第10期);第123-126页 * |
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| CN103595102A (en) | 2014-02-19 |
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Effective date of registration: 20190730 Address after: 116600 China (Liaoning) Free Trade Pilot Zone Dalian Economic and Technological Development Zone No. 39-13-2, No. 3 and No. 4 of Life No. 2 Road Patentee after: Dalian Shangjia New Energy Technology Co., Ltd. Address before: 116600 Liaoning Dalian Development Zone, double D, five street, building 1, Dalian still able to science and Technology Development Co., Ltd. Patentee before: Dalian Shinergy Science and Technology Development Co., Ltd. |