CN204391842U - Battery pack charge balancing circuit - Google Patents
Battery pack charge balancing circuit Download PDFInfo
- Publication number
- CN204391842U CN204391842U CN201520112348.XU CN201520112348U CN204391842U CN 204391842 U CN204391842 U CN 204391842U CN 201520112348 U CN201520112348 U CN 201520112348U CN 204391842 U CN204391842 U CN 204391842U
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- China
- Prior art keywords
- resistance
- electronic switch
- battery pack
- stabilizing chip
- voltage stabilizing
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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
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Battery pack charge balancing circuit comprises resistance R1 to resistance R8, voltage stabilizing chip Q1, voltage stabilizing chip Q2, the first electronic switch, the second electronic switch, positive voltage terminal V+ is connected negative voltage side V-by resistance R1 with resistance R2 successively, the control end of the first electronic switch connects the negative electrode of positive voltage terminal V+ and voltage stabilizing chip Q1, the anode of voltage stabilizing chip Q1 connects negative voltage side V-, the input of the first electronic switch connects positive voltage terminal V+ by resistance R8, the output of the first electronic switch connects the negative electrode of voltage stabilizing chip Q2, the anode of voltage stabilizing chip Q2 connects negative voltage side V-, the output of the second electronic switch connects negative voltage side V-, the control end of the second electronic switch is connected between the negative electrode of resistance R7 and voltage stabilizing chip Q2, the input of the second electronic switch is connected to by resistance R6 between the output of resistance R7 and the first electronic switch.The utility model can optimize the charge efficiency of battery pack, extends the useful life of battery pack.
Description
Technical field
The utility model relates to a kind of battery pack charge balancing circuit.
Background technology
Need charge to battery pack during photovoltaic generation, battery pack is generally formed by some serial battery, in charging process, the electric quantity change of each battery is not identical, cause the voltage of each battery entirely not identical, charging is continued for the battery exceeding safe voltage, will battery life be shortened, even puncture battery.
Utility model content
For the deficiencies in the prior art, the utility model is intended to provide a kind of battery pack charge balancing circuit solved the problems of the technologies described above.
For achieving the above object, the utility model adopts following technical scheme:
A kind of battery pack charge balancing circuit, it comprises resistance R1 to resistance R8, voltage stabilizing chip Q1, voltage stabilizing chip Q2, the first electronic switch, the second electronic switch;
Positive voltage terminal V+ is connected negative voltage side V-by resistance R1 with resistance R2 successively, the control end of the first electronic switch connects positive voltage terminal V+ by resistance R3, the negative electrode of voltage stabilizing chip Q1 is also connected by resistance R4, the control pole of voltage stabilizing chip Q1 is connected between resistance R1 and resistance R2, the anode of voltage stabilizing chip Q1 connects negative voltage side V-, the input of the first electronic switch connects positive voltage terminal V+ by resistance R8, the output of the first electronic switch connects the negative electrode of voltage stabilizing chip Q2 by resistance R7, the anode of voltage stabilizing chip Q2 connects negative voltage side V-, the output of the second electronic switch connects negative voltage side V-by resistance R5, the control end of voltage stabilizing chip Q2 is connected between the output of the second electronic switch and resistance R5, the control end of the second electronic switch is connected between the negative electrode of resistance R7 and voltage stabilizing chip Q2, the input of the second electronic switch is connected between the output of resistance R7 and the first electronic switch by resistance R6, wherein, positive voltage terminal V+ and negative voltage side V-are respectively used to positive pole and the negative pole of the battery being connected battery pack, the conducting when its control end receives a low level signal of first electronic switch, the conducting when its control end receives a high level signal of second electronic switch.
Preferably, battery pack charge balancing circuit also comprises the light-emitting diode D1 between control end and resistance R4 being connected to the first electronic switch, and the positive pole of light-emitting diode D1 connects the control end of the first electronic switch, the negative pole contact resistance R4 of light-emitting diode D1.
Preferably, battery pack charge balancing circuit also comprises the diode D1 be connected between resistance R1 and resistance R3, the negative electrode contact resistance R3 of the anode contact resistance R1 of diode D1, diode D1.
Preferably, battery pack charge balancing circuit also comprises electric capacity C1, and the two ends of electric capacity C1 connect positive voltage terminal V+ and negative voltage side V-respectively.
Preferably, the first electronic switch is triode, and the control end of the first electronic switch, input and output correspond to base stage, the emitter and collector of triode respectively.
Preferably, the second electronic switch is triode, and the control end of the second electronic switch, input and output correspond to base stage, the collector and emitter of triode respectively.
The beneficial effects of the utility model are at least as follows:
The utility model is in the battery charging process of battery pack, and the battery for underfill electricity makes it continue charging, maintains pressure constant state to the battery being full of electricity, is conducive to the charge efficiency optimizing battery pack, extends the useful life of battery pack.
Accompanying drawing explanation
Fig. 1 is the structural representation of the better embodiment of the utility model battery pack charge balancing circuit.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
Refer to Fig. 1, the utility model relates to a kind of battery pack charge balancing circuit, and its better embodiment comprises resistance R1 to resistance R8, voltage stabilizing chip Q1, voltage stabilizing chip Q2, the triode Q3 of positive-negative-positive and the triode Q4 of NPN type.
Positive voltage terminal V+ is connected negative voltage side V-by resistance R1 with resistance R2 successively, the base stage of triode Q3 connects positive voltage terminal V+ by resistance R3, the negative electrode of voltage stabilizing chip Q1 is also connected by resistance R4, the control pole of voltage stabilizing chip Q1 is connected between resistance R1 and resistance R2, the anode of voltage stabilizing chip Q1 connects negative voltage side V-, the emitter of triode Q3 connects positive voltage terminal V+ by resistance R8, the collector electrode of triode Q3 connects the negative electrode of voltage stabilizing chip Q2 by resistance R7, the anode of voltage stabilizing chip Q2 connects negative voltage side V-, the emitter of triode Q4 connects negative voltage side V-by resistance R5, the control end of voltage stabilizing chip Q2 is connected between the emitter of triode Q4 and resistance R5, the base stage of triode Q4 is connected between the negative electrode of resistance R7 and voltage stabilizing chip Q2, the collector electrode of triode Q4 is connected between the collector electrode of resistance R7 and triode Q3 by resistance R6, wherein, positive voltage terminal V+ and negative voltage side V-are respectively used to positive pole and the negative pole of the battery being connected battery pack.
In the present embodiment, battery pack charge balancing circuit also comprises the light-emitting diode D1 between base stage and resistance R4 being connected to triode Q3, the base stage of the positive pole connecting triode Q3 of light-emitting diode D1, the negative pole contact resistance R4 of light-emitting diode D1.
In the present embodiment, battery pack charge balancing circuit also comprises the diode D1 be connected between resistance R1 and resistance R3, the negative electrode contact resistance R3 of the anode contact resistance R1 of diode D1, diode D1.Diode D1 plays anti-backflow.
In the present embodiment, battery pack charge balancing circuit also comprises electric capacity C1, and the two ends of electric capacity C1 connect positive voltage terminal V+ and negative voltage side V-respectively.Electric capacity C1 is used for filter action.
Preferably, above-mentioned voltage stabilizing chip Q1 and Q2 can adopt the chip of 431 models.
Below the operation principle of the present embodiment is described:
During use, to the corresponding battery pack charge balancing circuit in parallel of each battery of battery pack; In battery charging process, battery pack charge balancing circuit detects the charging voltage VCC of corresponding battery by positive voltage terminal V+.From series circuit voltage divider principle, the voltage Vref1 of resistance R2 raises along with the rising of charging voltage VCC, when the voltage Vref1 of resistance R2 is less than the cut-in voltage of voltage stabilizing chip Q1, voltage stabilizing chip Q1, voltage stabilizing chip Q2, triode Q3 and triode Q4 are all in cut-off state, battery lasts charges, and makes charging voltage VCC continue to raise.When the voltage Vref1 of resistance R2 is equal to or greater than the cut-in voltage of voltage stabilizing chip Q1, voltage stabilizing chip Q1 conducting, and then drag down the base stage of triode Q3, make triode Q3 conducting, to make the base stage pull-up of triode Q4, and then make triode Q4 conducting, now, light-emitting diode D1 is luminous.When the voltage Vref2 of resistance R5 equals the cut-in voltage of voltage stabilizing chip Q2, the electric current flowing through resistance R5 enters constant current state, thus makes battery be in pressure constant state, stops charging.
From above-mentioned principle, triode Q3 and triode Q4 all plays electronic switch, therefore, in other embodiments, can be substituted by components and parts such as the field effect transistor possessing electronic switch function.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection range of the utility model claim.
Claims (6)
1. a battery pack charge balancing circuit, is characterized in that: it comprises resistance R1 to resistance R8, voltage stabilizing chip Q1, voltage stabilizing chip Q2, the first electronic switch, the second electronic switch, positive voltage terminal V+ is connected negative voltage side V-by resistance R1 with resistance R2 successively, the control end of the first electronic switch connects positive voltage terminal V+ by resistance R3, the negative electrode of voltage stabilizing chip Q1 is also connected by resistance R4, the control pole of voltage stabilizing chip Q1 is connected between resistance R1 and resistance R2, the anode of voltage stabilizing chip Q1 connects negative voltage side V-, the input of the first electronic switch connects positive voltage terminal V+ by resistance R8, the output of the first electronic switch connects the negative electrode of voltage stabilizing chip Q2 by resistance R7, the anode of voltage stabilizing chip Q2 connects negative voltage side V-, the output of the second electronic switch connects negative voltage side V-by resistance R5, the control end of voltage stabilizing chip Q2 is connected between the output of the second electronic switch and resistance R5, the control end of the second electronic switch is connected between the negative electrode of resistance R7 and voltage stabilizing chip Q2, the input of the second electronic switch is connected between the output of resistance R7 and the first electronic switch by resistance R6, wherein, positive voltage terminal V+ and negative voltage side V-are respectively used to positive pole and the negative pole of the battery being connected battery pack, the conducting when its control end receives a low level signal of first electronic switch, the conducting when its control end receives a high level signal of second electronic switch.
2. battery pack charge balancing circuit as claimed in claim 1, it is characterized in that: battery pack charge balancing circuit also comprises the light-emitting diode D1 between control end and resistance R4 being connected to the first electronic switch, the positive pole of light-emitting diode D1 connects the control end of the first electronic switch, the negative pole contact resistance R4 of light-emitting diode D1.
3. battery pack charge balancing circuit as claimed in claim 1, it is characterized in that: battery pack charge balancing circuit also comprises the diode D1 be connected between resistance R1 and resistance R3, the negative electrode contact resistance R3 of the anode contact resistance R1 of diode D1, diode D1.
4. battery pack charge balancing circuit as claimed in claim 1, it is characterized in that: battery pack charge balancing circuit also comprises electric capacity C1, the two ends of electric capacity C1 connect positive voltage terminal V+ and negative voltage side V-respectively.
5. the battery pack charge balancing circuit according to any one of Claims 1-4, is characterized in that: the first electronic switch is triode, and the control end of the first electronic switch, input and output correspond to base stage, the emitter and collector of triode respectively.
6. the battery pack charge balancing circuit according to any one of Claims 1-4, is characterized in that: the second electronic switch is triode, and the control end of the second electronic switch, input and output correspond to base stage, the collector and emitter of triode respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112348.XU CN204391842U (en) | 2015-02-13 | 2015-02-13 | Battery pack charge balancing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112348.XU CN204391842U (en) | 2015-02-13 | 2015-02-13 | Battery pack charge balancing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204391842U true CN204391842U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520112348.XU Active CN204391842U (en) | 2015-02-13 | 2015-02-13 | Battery pack charge balancing circuit |
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| Country | Link |
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| CN (1) | CN204391842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039169A (en) * | 2020-09-22 | 2020-12-04 | 上海空间电源研究所 | Automatic equalization circuit of single storage battery |
-
2015
- 2015-02-13 CN CN201520112348.XU patent/CN204391842U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039169A (en) * | 2020-09-22 | 2020-12-04 | 上海空间电源研究所 | Automatic equalization circuit of single storage battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170626 Address after: Yao town of Huadu District of Guangdong province Guangzhou Cen Jing Road 510800 No. 26 Co-patentee after: Hua Zhengcai Patentee after: Guangzhou Omarte Lighting Co., Ltd. Address before: Yao town of Huadu District Cen Jing Xi Lu 510800 Guangdong province Guangzhou City Patentee before: Hua Zhengcai |
|
| TR01 | Transfer of patent right |