CN103595102A - Novel super capacitor voltage equalizing circuit - Google Patents
Novel super capacitor voltage equalizing circuit Download PDFInfo
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- CN103595102A CN103595102A CN201310603428.0A CN201310603428A CN103595102A CN 103595102 A CN103595102 A CN 103595102A CN 201310603428 A CN201310603428 A CN 201310603428A CN 103595102 A CN103595102 A CN 103595102A
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Abstract
The invention discloses a novel super capacitor voltage equalizing circuit. The novel super capacitor voltage equalizing circuit comprises a control circuit, resistors, an audion and a super capacitor, wherein the control circuit is formed by an operational amplifier and the resistor R3 which are series connection, a reference voltage is input into the negative input end of the operational amplifier through the resistor R1, the positive input end of the operational amplifier is connected with a VCC, the output end of the operational amplifier is connected with one end of the resistor R3 through a wire, the other end of the resistor R3 is connected with the base electrode of the audion, the emitting electrode of the audion is connected back to the collector electrode of the audion through a wire via the super capacitor and the resistor R4, one end of the resistor R2 is connected to the negative input end of the operational amplifier, the other end of the resistor R2 is connected to the collector electrode of the audion, a positive power supply terminal of the operational amplifier is connected with the VCC, and a negative power supply terminal of the operational amplifier is grounded. The novel super capacitor voltage equalizing circuit is simple in structure and stable and reliable in working.
Description
Technical field
The present invention relates to ultracapacitor technical field, in particular a kind of novel 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 are used super capacitor to solve high-power problem of moment in a large number, thereby significantly improving service lifetime of accumulator, is current urgent problem for the technology of pressure equalization of super capacitor.
The rated voltage of ultracapacitor is very low, needs a large amount of series connection in application.Owing to often needing large electric current charge and discharge in application, therefore on each monolithic capacitor in series connection, whether voltage is unanimously vital.Affecting the factor whether ultracapacitor voltage divide equally mainly contains: capacitance, ESR, leakage current etc., although the impact that ultracapacitor is divided equally the voltage of ultracapacitor in these parameters of application initial stage is smaller, but in the middle and later periods of supercapacitor applications, along with the discreteness change of these parameters is large, the impact that ultracapacitor voltage is divided equally is increasing, finally causes the sharply shortening in ultracapacitor life-span.If do not take necessary all pressures measure, can cause that on each monolithic capacitor, voltage is larger, it is worthless 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 a kind of simple in structure, reliable a kind of novel super capacitor equalizer circuit of working stability.
To achieve these goals, technical scheme of the present invention is as follows:
A super capacitor equalizer circuit, comprising: control circuit, resistance, triode, super capacitor; Described control circuit is composed in series by operational amplifier and resistance R 3; 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 the collector electrode to triode by wire through super capacitor and resistance R 4, one end of resistance R 2 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;
Described reference voltage is super capacitor protection voltage;
Described control circuit, for gathering super capacitor magnitude of voltage.
A super capacitor equalizer circuit, its workflow is:
When super capacitor voltage reaches voltage reference value Vc1, control circuit conducting, by the control to Vc1 and discharge curve, starts from scratch with the non-linear increase of electric capacity both end voltage equalizing current; Also can pass through multiplication factor and the resistance R 2 of triode, equalizing current is started from scratch to be increased with electric capacity both end voltage is linear;
When super capacitor voltage reaches voltage reference value Vc2, it is maximum that equalizing current reaches, and equalizing current no longer increases with electric capacity both end voltage;
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.
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 the situation of all pressing, because circuit is not according to the work of maximum current point, not only reached the effect of all pressing, the loss of equalizer circuit that the while has also reduced l; When super capacitor monomer two ends reach voltage pole limit value, circuit releases energy rapidly, thereby has optimized super capacitor equalizer circuit.
Accompanying drawing explanation
This figure has accompanying drawing 2 width.
Fig. 1 is traditional equilibrium curve and the comparison diagram of 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 super capacitor equalizer circuit, comprising: control circuit, resistance, triode, super capacitor; Described control circuit is composed in series by operational amplifier and resistance R 3; 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 the collector electrode to triode by wire through super capacitor and resistance R 4, one end of resistance R 2 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;
Described reference voltage is super capacitor protection voltage;
Described control circuit, for gathering super capacitor magnitude of voltage.
A super capacitor equalizer circuit, its workflow is:
When super capacitor voltage reaches voltage reference value Vc1, control circuit conducting, by the control to Vc1 and discharge curve, starts from scratch with the non-linear increase of electric capacity both end voltage equalizing current; Also can pass through multiplication factor and the resistance R 2 of triode, equalizing current is started from scratch to be increased with electric capacity both end voltage is linear;
When super capacitor voltage reaches voltage reference value Vc2, it is maximum that equalizing current reaches, and equalizing current no longer increases with electric capacity both end voltage;
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 (2)
1. 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 R 3; 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 the collector electrode to triode by wire through super capacitor and resistance R 4, one end of resistance R 2 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;
Described reference voltage is super capacitor protection voltage;
Described control circuit, for gathering super capacitor magnitude of voltage.
2. a kind of novel super capacitor equalizer circuit according to claim 1, is characterized in that: workflow is:
When super capacitor voltage reaches voltage reference value Vc1, control circuit conducting, by the control to Vc1 and discharge curve, starts from scratch with the non-linear increase of electric capacity both end voltage equalizing current; Also can pass through multiplication factor and the resistance R 2 of triode, equalizing current is started from scratch to be increased with electric capacity both end voltage is linear;
When super capacitor voltage reaches voltage reference value Vc2, it is maximum that equalizing current reaches, and equalizing current no longer increases with electric capacity both end voltage.
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 |
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| CN103595102A true CN103595102A (en) | 2014-02-19 |
| CN103595102B 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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Cited By (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 (4)
| 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 |
| 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***有限公司 | Power station direct current power supply device based on super capacitor |
-
2013
- 2013-11-23 CN CN201310603428.0A patent/CN103595102B/en active Active
Patent Citations (4)
| 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 |
| 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***有限公司 | Power station direct current power supply device based on super capacitor |
Non-Patent Citations (1)
| Title |
|---|
| 杨威等: "超级电容器组均衡充电***", 《电工技术学报》, vol. 22, no. 10, 31 October 2007 (2007-10-31), pages 123 - 126 * |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN103595102B (en) | 2016-01-20 |
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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. |