CN103607011B - Novel supercapacitor voltage sharing circuit - Google Patents
Novel supercapacitor voltage sharing circuit Download PDFInfo
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- CN103607011B CN103607011B CN201310604355.7A CN201310604355A CN103607011B CN 103607011 B CN103607011 B CN 103607011B CN 201310604355 A CN201310604355 A CN 201310604355A CN 103607011 B CN103607011 B CN 103607011B
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Abstract
Disclosed is a novel supercapacitor voltage sharing circuit. The novel supercapacitor voltage sharing circuit comprises resistors, operational amplifiers, a triode and a supercapacitor single body. The negative input end of the operational amplifier I is used for inputting a single body reference voltage, a module reference voltage is input to the positive input end of the operational amplifier I through a wire and the resistor R3, one end of the resistor R4 is connected to the positive input end of the operational amplifier I, the other end of the resistor R4 is connected to the output end of the operational amplifier I, the output end of the operational amplifier I is connected to the negative input end of the operational amplifier II through the resistor R5, the positive input end of the operational amplifier II is connected to a VCC, the output end of the operational amplifier II is connected with the base of the triode through a wire and the resistor R2, and the emitter of the triode is connected back to the collector of the triode through a wire, the supercapacitor single body and the resistor R1. The novel supercapacitor voltage sharing circuit solves the problems that the difference between the supercapacitor single body and a single body can not be fed back and the voltage sharing speed is low in the prior art.
Description
Technical field
The present invention relates to supercapacitor technologies 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 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.
Super capacitor monomer due to monomer withstand voltage lower, generally at about 2.8V.Use in actual applications, all far exceed this voltage, so need multiple monomer series-connected use, need to use equalizer circuit simultaneously.Equalizer circuit has two kinds, and one passively all to be pressed; One is initiatively all pressed.Wherein initiatively all press the speed owing to all pressing fast, equal pressure energy power is strong, is more and more used.The working condition of these two kinds of equalizer circuits, only depends on the monomer voltage of super capacitor, can not feed back the difference between monomer and monomer, and cause differing greatly of different monomers voltage, pressure rate is slower.
Summary of the invention
For solving the problems referred to above that prior art exists, the invention provides a kind of novel super capacitor equalizer circuit, solving in prior art the difference can not fed back between super capacitor monomer and monomer, the problems such as pressure rate is slower.
For achieving the above object, concrete scheme of the present invention is as follows:
A novel super capacitor equalizer circuit, comprising: resistance, operational amplifier, triode, super capacitor monomer, described resistance comprises resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, described operational amplifier comprises operational amplifier I and operational amplifier II, the negative input end of described operational amplifier I is in order to input monomer reference voltage, module reference voltage inputs to the positive input terminal of operational amplifier I through resistance R3 by wire, one end of resistance R4 is connected to the positive input terminal of operational amplifier I, its other end is connected to the output of operational amplifier I, the output of operational amplifier I is connected to the negative input end of operational amplifier II through resistance R5, the positive input terminal of operational amplifier II is connected to VCC, the output of operational amplifier II is connected with the base stage of triode through resistance R2 by wire, the emitter of triode takes back collector electrode to triode by wire through super capacitor monomer and resistance R1, described operational amplifier I and the positive power terminal of operational amplifier II meet VCC, its negative power source terminal ground connection,
Described module reference voltage is the difference that the total voltage of super capacitor monomer of series connection and module protect voltage;
Described monomer reference voltage is super capacitor monomer protection voltage.
A novel super capacitor equalizer circuit, its workflow is:
When super capacitor monomer voltage reaches magnitude of voltage Vc1, operational amplifier is started working, by the control to magnitude of voltage Vc1 and discharge curve, ensure that the impedance of each super capacitor monomer is dynamically consistent, equalizing current is started from scratch with the non-linear increase of super capacitor monomer both end voltage; Also by multiplication factor and the resistance R2 of triode, the impedance ensureing each super capacitor monomer is dynamically consistent, and equalizing current is started from scratch and linearly to be increased with super capacitor monomer both end voltage;
When super capacitor monomer voltage reaches magnitude of voltage Vc2, equalizing current reaches maximum, and equalizing current no longer increases with the increase of super capacitor monomer both end voltage;
Described magnitude of voltage Vc1 and magnitude of voltage Vc2 is determined jointly by the total voltage of the super capacitor monomer of super capacitor monomer voltage, monomer reference voltage, series connection;
Equalizing current can be increased to maximum according to the linearity curve in Fig. 2 from zero, also can be increased to maximum according to the nonlinear curve in Fig. 2 from zero, can also be increased to maximum according to the stepped curve in Fig. 1 from zero.
Beneficial effect of the present invention is: a kind of novel super capacitor equalizer circuit, solve the problem that super capacitor system causes partition capacitance excessive pressure damages in charge and discharge process, extend the useful life of super capacitor module, improve the functional reliability of super capacitor module; This circuit realiration is simple, has good all pressures effect, makes super capacitor monomer voltage consistent at any time, thus ensure that pressure rate is very fast.
Accompanying drawing explanation
The present invention 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 schematic diagram.
In figure sequence number illustrate: 1, operational amplifier I, 2, operational amplifier II, 3, triode, 4, super capacitor monomer.
Embodiment
Below in conjunction with the present embodiment, the present invention is further described:
A novel super capacitor equalizer circuit, comprising: resistance, operational amplifier, triode 3, super capacitor monomer 4, described resistance comprises resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, described operational amplifier comprises operational amplifier I 1 and operational amplifier II 2, the negative input end of described operational amplifier I 1 is in order to input monomer reference voltage, module reference voltage inputs to the positive input terminal of operational amplifier I 1 through resistance R3 by wire, one end of resistance R4 is connected to the positive input terminal of operational amplifier I 1, its other end is connected to the output of operational amplifier I 1, the output of operational amplifier I 1 is connected to the negative input end of operational amplifier II 2 through resistance R5, the positive input terminal of operational amplifier II 2 is connected to VCC, the output of operational amplifier II 2 is connected with the base stage of triode 3 through resistance R2 by wire, the emitter of triode 3 takes back collector electrode to triode 3 by wire through super capacitor monomer 4 and resistance R1, described operational amplifier I 1 and the positive power terminal of operational amplifier II 2 meet VCC, its negative power source terminal ground connection,
Described module reference voltage is the difference that the total voltage of super capacitor monomer 4 of series connection and module protect voltage;
Described monomer reference voltage 4 is super capacitor monomer protection voltage.
A novel super capacitor equalizer circuit, its workflow is:
When super capacitor monomer 4 voltage reaches magnitude of voltage Vc1, operational amplifier is started working, by the control to magnitude of voltage Vc1 and discharge curve, ensure that the impedance of each super capacitor monomer 4 is dynamically consistent, equalizing current is started from scratch with the non-linear increase of super capacitor monomer 4 both end voltage; Also by multiplication factor and the resistance R2 of triode 3, the impedance ensureing each super capacitor monomer 4 is dynamically consistent, and equalizing current is started from scratch and linearly to be increased with super capacitor monomer 4 both end voltage;
When super capacitor monomer voltage 4 reaches magnitude of voltage Vc2, equalizing current reaches maximum, and equalizing current no longer increases with the increase of super capacitor monomer both end voltage;
Described magnitude of voltage Vc1 and magnitude of voltage Vc2 is determined jointly by the total voltage of the super capacitor monomer 4 of super capacitor monomer voltage 4, monomer reference voltage, series connection;
Equalizing current can be increased to maximum according to the linearity curve in Fig. 2 from zero, also can be increased to maximum according to the nonlinear curve in Fig. 2 from zero, can also be increased to maximum according to the stepped curve in Fig. 1 from zero.
Claims (2)
1. a novel super capacitor equalizer circuit, is characterized in that comprising: resistance, operational amplifier, triode (3), super capacitor monomer (4), described resistance comprises resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, described operational amplifier comprises operational amplifier I (1) and operational amplifier II (2), the negative input end of described operational amplifier I (1) is in order to input monomer reference voltage, module reference voltage inputs to the positive input terminal of operational amplifier I (1) through resistance R3 by wire, one end of resistance R4 is connected to the positive input terminal of operational amplifier I (1), its other end is connected to the output of operational amplifier I (1), the output of operational amplifier I (1) is connected to the negative input end of operational amplifier II (2) through resistance R5, the positive input terminal of operational amplifier II (2) is connected to VCC, the output of operational amplifier II (2) is connected with the base stage of triode (3) through resistance R2 by wire, the emitter of triode (3) takes back collector electrode to triode (3) by wire through super capacitor monomer (4) and resistance R1, described operational amplifier I (1) and the positive power terminal of operational amplifier II (2) meet VCC, its negative power source terminal ground connection, described module reference voltage is the difference that the total voltage of super capacitor monomer (4) of series connection and module protect voltage, described monomer reference voltage is super capacitor monomer protection voltage,
The workflow of this super capacitor equalizer circuit is:
When super capacitor monomer (4) voltage reaches magnitude of voltage Vc1, operational amplifier is started working, by the control to magnitude of voltage Vc1 and discharge curve, ensure that the impedance of each super capacitor monomer is dynamically consistent, equalizing current is started from scratch with the non-linear increase of super capacitor monomer (4) both end voltage; Also by multiplication factor and the resistance R2 of triode (3), the impedance ensureing each electric capacity monomer is dynamically consistent, and equalizing current is started from scratch and linearly to be increased with super capacitor monomer (4) both end voltage; When super capacitor monomer (4) voltage reaches magnitude of voltage Vc2, equalizing current reaches maximum, and equalizing current no longer increases with the increase of super capacitor monomer (4) both end voltage.
2. a kind of novel super capacitor equalizer circuit according to claim 1, is characterized in that: described magnitude of voltage Vc1 and magnitude of voltage Vc2 is determined jointly by the total voltage of the super capacitor monomer (4) of super capacitor monomer (4) voltage, monomer reference voltage, series connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310604355.7A CN103607011B (en) | 2013-11-23 | 2013-11-23 | Novel supercapacitor voltage sharing circuit |
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| CN201310604355.7A CN103607011B (en) | 2013-11-23 | 2013-11-23 | Novel supercapacitor voltage sharing circuit |
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| CN103607011A CN103607011A (en) | 2014-02-26 |
| CN103607011B true CN103607011B (en) | 2015-06-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103986308B (en) * | 2014-05-04 | 2017-04-05 | 清华大学 | A kind of dynamic voltage-balancing of Multilevel Inverters DC capacitor |
| CN106936366B (en) * | 2017-05-12 | 2023-03-21 | 哈尔滨工业大学 | Energy recovery control system of variable frequency washing machine based on super capacitor |
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| CN102570622A (en) * | 2011-12-30 | 2012-07-11 | 合肥同智机电控制技术股份有限公司 | Voltage-sharing device of super capacitors |
| CN102662115A (en) * | 2012-05-07 | 2012-09-12 | 中国电力科学研究院 | Online monitoring circuit and method for series compensation spark gap voltage divider loop |
| CN203071609U (en) * | 2012-12-16 | 2013-07-17 | 常州市巨泰电子有限公司 | Super-capacitor equalizing circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0424567A (en) * | 1990-05-18 | 1992-01-28 | Maspro Denkoh Corp | Battery consumption alarm circuit in battery-operated apparatus |
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| CN101674018A (en) * | 2009-10-09 | 2010-03-17 | 南京航空航天大学 | Multi-module combined converter and soft start control method thereof |
| CN102570622A (en) * | 2011-12-30 | 2012-07-11 | 合肥同智机电控制技术股份有限公司 | Voltage-sharing device of super capacitors |
| CN102662115A (en) * | 2012-05-07 | 2012-09-12 | 中国电力科学研究院 | Online monitoring circuit and method for series compensation spark gap voltage divider loop |
| CN203071609U (en) * | 2012-12-16 | 2013-07-17 | 常州市巨泰电子有限公司 | Super-capacitor equalizing circuit |
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Effective date of registration: 20190730 Address after: 116600 Dalian City, Liaoning Province, China (Liaoning) Free Trade Pilot Zone Dalian Economic and Technological Development Zone Life Road 39-13-2, -3, -4 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. |