CN201345300Y - Super capacitor system high-current equalizer circuit - Google Patents
Super capacitor system high-current equalizer circuit Download PDFInfo
- Publication number
- CN201345300Y CN201345300Y CNU200820239284XU CN200820239284U CN201345300Y CN 201345300 Y CN201345300 Y CN 201345300Y CN U200820239284X U CNU200820239284X U CN U200820239284XU CN 200820239284 U CN200820239284 U CN 200820239284U CN 201345300 Y CN201345300 Y CN 201345300Y
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- China
- Prior art keywords
- circuit
- super capacitor
- current equalizer
- capacitor system
- discharge
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- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Disclosed is a super capacitor system high-current equalizer circuit which resolves the problem that portions of a capacitor of a super capacitor system is easy to be damaged by over voltage during charging and discharging processes. The super capacitor system high-current equalizer circuit comprises a plurality of groups of input ends, and each group of input ends is composed of a positive input end and a negative input end. The super capacitor system high-current equalizer circuit is characterized in that each group of input ends is connected with a sampling circuit, an output end of the sampling circuit is connected with a comparison circuit, an output end of the comparison circuit is connected with a driving circuit, an output end of the driving circuit is connected with an electronic switch, the super capacitor system high-current equalizer circuit is further equipped with a discharge circuit formed by a thermal switch and a discharge load, and the electronic switch and the discharge circuit are in series connection between the positive input ends and the negative input ends. The utility model has the advantages that the super capacitor system high-current equalizer circuit is simple in circuit, small in volume, convenient in mounting and relatively low in increased cost, can utilize high current and high power, reduces power consumption, increases voltage equalizing effect, and brings convenience for discharging for a long time. An equalizer load can not be heated over during the discharging process, thereby increasing precision and reducing power consumption of an electronic switching tube.
Description
Technical field
The utility model relates to the big electric current equalizer circuit of a kind of ultracapacitor system.
Background technology
The ultracapacitor system very easily forms the unbalanced of voltage owing to capacity, the isoparametric difference of internal resistance in charge and discharge process, if do not take all to press measure, its build-up effect must increase the weight of the difference of voltage, causes the overvoltage of partition capacitance device to damage.It generally mostly is all to press between the monomer that capacitor is all pressed, electric current is about 0.1～0.5A, but the charging current of ultracapacitor is generally all bigger, that have in addition tens amperes to amperage magnitudes up to a hundred, all the press effect of equalizing current when large current charge is to guarantee not superpressure of the capacitor that has like this.Therefore adopting big electric current all to press in the ultracapacitor system between module and the module is the requisite measure that solves the capacitor overvoltage.For the ultracapacitor system of large current charge, all pressures between its module: the electric current of bypass is a bit greatly, all presses short more precision good more, that all press of time high more good more.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that prior art exists, and a kind of big electric current equalizer circuit of ultracapacitor system that prevents that the capacitor overvoltage from damaging is provided.
The utility model is achieved in that it comprises many group inputs, every group of input is made up of positive input terminal and negative input end, its special character is: be connected to sample circuit at every group of input, be connected at the output of sample circuit and be used for comparison circuit that sampled signal and reference voltage are compared, between positive input terminal and comparison circuit positive power source terminal, be connected to voltage stabilizing circuit, be connected to the drive circuit of controlling by the comparison circuit outputs level signals at the comparison circuit output, output at drive circuit is connected to the electronic switch of controlling by drive circuit, the big electric current equalizer circuit of this ultracapacitor system also has the discharge circuit that is made of thermal switch and discharge load, and described electronic switch and discharge circuit just are connected on, between the negative input end.
The big electric current equalizer circuit of above-mentioned ultracapacitor system, described discharge load are to be made of first load resistance and second load resistance, and described first load resistance and thermal switch series connection back are in parallel with second load resistance.
The big electric current equalizer circuit of above-mentioned ultracapacitor system, described second load resistance are 1-2 times of first load resistance resistance number.
The big electric current equalizer circuit of this ultracapacitor system has following advantage:
1, because of the negligible amounts of module, can adopt big electric current, high-power, its installation is more convenient, and cost increases less relatively.
2, owing to the electric voltage equalization between the module, the voltage difference between the monolithic capacitor will reduce greatly, and this has also just reduced the power consumption of equalizer circuit between the monolithic capacitor relatively, improves and has improved and all press effect.
3, all press electric process and be divided into two stages, the phase I discharge is heavy-current discharge at the beginning, this voltage that facilitates module reduces rapidly, make that all the pressure time shortens as far as possible, second stage can't be reduced to equilibrium valve as module voltage after 3～4 seconds, at this moment because the effect of thermal switch disconnects a load resistance, electric current is reduced to reduce power consumption and heat, be convenient to long-time discharge, in general charging process, equalizer circuit can be finished pressure equalizing in the phase I greatly, all presses the load can be not awfully hot.
4, the precision of this super capacitor module equalizer circuit is very high, about 0.2%, has improved the effect and the precision of all pressing so on the one hand, and has also reduced the power consumption of electronic switching tube greatly.
5,, be convenient to install because circuit is simple, and volume is little, can fit together by several module equalizer circuits.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
Embodiment
As shown in the figure, the utility model has many group inputs, every group of input is made up of positive input terminal 1 and negative input end 2, between every group of input 1,2, be connected to sample circuit 3, be connected at the output of sample circuit 3 and be used for comparison circuit 5 that sampled signal and reference voltage are compared, between positive input terminal 1 and comparison circuit 5 positive power source terminals, be connected to voltage stabilizing circuit 4.Be connected to the drive circuit of controlling by comparison circuit 5 outputs level signals 7 at comparison circuit 5 outputs, output at drive circuit 7 is connected to the electronic switch of controlling by drive circuit 76, the big electric current equalizer circuit of this ultracapacitor system also has the discharge circuit that is made of thermal switch 8 and discharge load, described discharge load is by first load resistance 9, second load resistance 10 is formed, described first load resistance 9 and thermal switch 8 series connection backs are in parallel with second load resistance 10, and described electronic switch 6 and discharge circuit just are connected on, negative input end 1, between 2.
During work, by sample circuit 3 super capacitor module 11 both end voltage are taken a sample, compare with the reference voltage of setting, be less than or equal to the reference voltage that sets as sampling voltage, comparison circuit 5 output high level, its drive circuit 7 is failure to actuate, and electronic switch 6 is in off state, and this equalizer circuit itself does not consume the energy of capacitor substantially; Charging voltage as super capacitor module 11 is higher than the voltage that sets, at this moment comparison circuit 5 output low levels, its drive circuit 7 actions, open electronic switch 6, connect thermal switch 8, first load resistance 9 and second load resistance 10, the charging current of super capacitor module 11 is reduced greatly through the load resistance bypass, generally reduce to balance at 3～4 seconds inner module voltage, as because of the voltage difference between the module excessive, the balance that can not fall in 3～4 seconds, at this moment thermal switch 8 just disconnects, electric current is reduced to about 3A by 7 original～8A, to reduce its heat and power consumption, so that the power consumption of discharging for a long time is unlikely to excessive, its module voltage is reduced to equilibrium valve, electronic switch 6 just turn-offs always.
Claims (3)
1, the big electric current equalizer circuit of a kind of ultracapacitor system, comprise many group inputs, every group of input is made up of positive input terminal and negative input end, it is characterized in that: be connected to sample circuit at every group of input, be connected at the output of sample circuit and be used for comparison circuit that sampled signal and reference voltage are compared, between positive input terminal and comparison circuit positive power source terminal, be connected to voltage stabilizing circuit, be connected to the drive circuit of controlling by the comparison circuit outputs level signals at the comparison circuit output, output at drive circuit is connected to the electronic switch of controlling by drive circuit, the big electric current equalizer circuit of this ultracapacitor system also has the discharge circuit that is made of thermal switch and discharge load, and described electronic switch and discharge circuit just are connected on, between the negative input end.
2, the big electric current equalizer circuit of ultracapacitor system according to claim 1, it is characterized in that: described discharge load is to be made of first load resistance and second load resistance, and described first load resistance and thermal switch series connection back are in parallel with second load resistance.
3, the big electric current equalizer circuit of ultracapacitor system according to claim 1 is characterized in that: described second load resistance is 1-2 a times of first load resistance resistance number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820239284XU CN201345300Y (en) | 2008-12-31 | 2008-12-31 | Super capacitor system high-current equalizer circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820239284XU CN201345300Y (en) | 2008-12-31 | 2008-12-31 | Super capacitor system high-current equalizer circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201345300Y true CN201345300Y (en) | 2009-11-11 |
Family
ID=41276886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820239284XU Expired - Lifetime CN201345300Y (en) | 2008-12-31 | 2008-12-31 | Super capacitor system high-current equalizer circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201345300Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714787B (en) * | 2009-12-28 | 2012-09-05 | 湖南科力远高技术控股有限公司 | Supercapacitor module management system |
-
2008
- 2008-12-31 CN CNU200820239284XU patent/CN201345300Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101714787B (en) * | 2009-12-28 | 2012-09-05 | 湖南科力远高技术控股有限公司 | Supercapacitor module management system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIAONING BAINA ELECTRIC APPLICANCE CO., LTD. Free format text: FORMER OWNER: FU XUTAO Effective date: 20100108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100108 Address after: Hi tech Industrial Park, Longcheng District, Liaoning, Chaoyang City Province, China: 122000 Patentee after: Liaoning Baina Electric Co., Ltd. Address before: Liaoning Province, Jinzhou City, Taihe District De Xin Li Oriental Garden 7-16, zip code: 121000 Patentee before: Fu Xutao |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091111 |