CN202548190U - Circuit for simply measuring voltages of each single battery in 16 battery packs - Google Patents
Circuit for simply measuring voltages of each single battery in 16 battery packs Download PDFInfo
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- CN202548190U CN202548190U CN2012201444580U CN201220144458U CN202548190U CN 202548190 U CN202548190 U CN 202548190U CN 2012201444580 U CN2012201444580 U CN 2012201444580U CN 201220144458 U CN201220144458 U CN 201220144458U CN 202548190 U CN202548190 U CN 202548190U
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Abstract
The utility model provides a circuit for simply measuring voltages of each single battery in 16 battery packs. The circuit is characterized in that each single battery in the 16 battery packs is connected to a substractor circuit composed of an operational amplifier by a switching network and the substractor circuit carries out subtraction on the voltages at the two ends of each single battery to obtain the voltage value of each single battery.
Description
Technical field
The utility model relates to each monomer battery voltage ordinary surveying circuit in a kind of 16 joint series batteries.This circuit is connected to each cell in the 16 string electric battery on the subtraction circuit of being made up of operational amplifier through a switching network respectively, through subtraction circuit each cell voltage is done subtraction and obtains each monomer battery voltage value.
Background technology
Rechargeable battery like lithium battery etc., when series connection is used in groups, need be done monitoring to each monomer battery voltage.For a large amount of series connected battery groups, for example 16 joint series connected battery groups generally adopt special IC perhaps with flying capacitance measurement.Though special IC is easy to use, cost is than higher.Traditional capacitance measurement circuit that flies needs a large amount of switches, also has the higher shortcoming of cost.
Summary of the invention
In order to overcome the existing high shortcoming of cost that each monomer battery voltage circuit of electric battery exists of measuring, the utility model provides a kind of ordinary surveying circuit, is used for measuring each monomer battery voltage in the 16 joint series connected battery groups.
The utility model solves the technical scheme that its technical matters adopted: the negative pole of battery Cell1 connects switch S 1 in the series battery, and the positive pole of battery Cell1, Cell2, Cell3, Cell4, Cell5, Cell6, Cell7, Cell8, Cell9, Cell10, Cell11, Cell12, Cell13, Cell14, Cell15, Cell16 connects switch S 10, S2, S11, S3, S12, S4, S13, S5, S14, S6, S15, S7, S16, S8, S17, S9 respectively.The other end of switch S 1, S2, S3, S4, S5, S6, S7, S8, S9 links to each other, and connects switch S 18 and S21.The other end of switch S 10, S11, S12, S13, S14, S15, S16, S17 links to each other, and connects switch S 19 and S20.Sheet one end of switch S 18 and S19 is connected resistance R 1, and the other end of switch S 20 and S21 is connected resistance R 2.Negative input end and the resistance R 3 of the other end concatenation operation amplifier Op-Amp of resistance R 1; The output terminal of the other end concatenation operation amplifier Op-Amp of resistance R 3; Positive input terminal and the resistance R 4 of the other end concatenation operation amplifier Op-Amp of resistance R 2, the other end ground connection of resistance R 4.
The beneficial effect of the utility model is that circuit structure is simple, cheap.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the schematic diagram of the utility model.
Among Fig. 1; Cell1, Cell2, Cell3, Cell4, Cell5, Cell6, Cell7, Cell8, Cell9, Cell10, Cell11, Cell12, Cell13, Cell14, Cell15, Cell16 are 16 batteries of series connection; S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21 are switches; R1, R2, R3, R4 are resistance; Op-Amp is an operational amplifier, and VCC is the power supply of operational amplifier Op-Amp, and Vout is the monomer battery voltage signal output part.
Embodiment
Among Fig. 1; The negative pole of battery Cell1 connects switch S 1 in the series battery, and the positive pole of battery Cell1, Cell2, Cell3, Cell4, Cell5, Cell6, Cell7, Cell8, Cell9, Cell10, Cell11, Cell12, Cell13, Cell14, Cell15, Cell16 connects switch S 10, S2, S11, S3, S12, S4, S13, S5, S14, S6, S15, S7, S16, S8, S17, S9 respectively.The other end of switch S 1, S2, S3, S4, S5, S6, S7, S8, S9 links to each other, and connects switch S 18 and S21.The other end of switch S 10, S11, S12, S13, S14, S15, S16, S17 links to each other, and connects switch S 19 and S20.The other end of switch S 18 and S19 is connected R1, and the other end of switch S 20 and S21 is connected resistance R 2.Negative input end and the resistance R 3 of the other end concatenation operation amplifier Op-Amp of resistance R 1; The output terminal of the other end concatenation operation amplifier Op-Amp of resistance R 3; Positive input terminal and the resistance R 4 of the other end concatenation operation amplifier Op-Amp of resistance R 2, the other end ground connection of resistance R 4.Operational amplifier Op-Amp, resistance R 1, resistance R 2, resistance R 3, resistance R 4 are formed a subtraction circuit; Switch S 21, S20 and resistance R 2 junctions are positive input terminals of subtraction circuit; Switch S 19, S18 and resistance R 1 junction are the negative input ends of subtraction circuit, and the positive input terminal magnitude of voltage that Vout end output voltage values is proportional to subtraction circuit deducts the negative input end magnitude of voltage.
When measuring battery Cell1; Connect switch S1, S10, S18 and S20; Other switches keep off state, and the positive pole of battery Cell1 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell1, promptly measures the magnitude of voltage of battery Cell1.
When measuring battery Cell2; Connect switch S2, S10, S19 and S21; Other switches keep off state, and the positive pole of battery Cell2 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell2, promptly measures the magnitude of voltage of battery Cell2.
When measuring battery Cell3; Connect switch S2, S11, S18 and S20; Other switches keep turn-offing shape to be read, and the positive pole of battery Cell3 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell3, promptly measures the magnitude of voltage of battery Cell3.
When measuring battery Cell4; Connect switch S3, S11, S19 and S21; Other switches keep off state, and the positive pole of battery Cell4 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell4, promptly measures the magnitude of voltage of battery Cell4.
When measuring battery Cell5; Connect switch S3, S12, S18 and S20; Other switches keep off state, and the positive pole of battery Cell5 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell5, promptly measures the magnitude of voltage of battery Cell5.
When measuring battery Cell6; Connect switch S4, S12, S19 and S21; Other switches keep off state, and the positive pole of battery Cell6 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell6, promptly measures the magnitude of voltage of battery Cell6.
When measuring battery Cell7; Connect switch S4, S13, S18 and S20; Other switches keep off state, and the positive pole of battery Cell7 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell7, promptly measures the magnitude of voltage of battery Cell7.
When measuring battery Cell8; Connect switch S5, S13, S19 and S21; Other switches keep off state, and the positive pole of battery Cell8 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell8, promptly measures the magnitude of voltage of battery Cell8.
When measuring battery Cell9; Connect switch S5, S14, S18 and S20; Other switches keep off state, and the positive pole of battery Cell9 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell9, promptly measures the magnitude of voltage of battery Cell9.
When measuring battery Cell10; Connect switch S6, S14, S19 and S21; Other switches keep off state, and the positive pole of battery Cell10 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell10, promptly measures the magnitude of voltage of battery Cell10.
When measuring battery Cell11; Connect switch S6, S15, S18 and S20; Other switches keep off state, and the positive pole of battery Cell11 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell11, promptly measures the magnitude of voltage of battery Cell11.
When measuring battery Cell12; Connect switch S7, S15, S19 and S21; Other switches keep off state, and the positive pole of battery Cell12 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell12, promptly measures the magnitude of voltage of battery Cell12.
When measuring battery Cell13; Connect switch S7, S16, S18 and S20; Other switches keep off state, and the positive pole of battery Cell13 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell13, promptly measures the magnitude of voltage of battery Cell13.
When measuring battery Cell14; At first connect switch S8, S16, S19 and S21; Other switches keep off state, and the positive pole of battery Cell14 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell14, promptly measures the magnitude of voltage of battery Cell14.
When measuring battery Cell15; Connect switch S8, S17, S18 and S20; Other switches keep off state, and the positive pole of battery Cell15 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell15, promptly measures the magnitude of voltage of battery Cell15.
When measuring battery Cell16; Connect switch S9, S17, S19 and S21; Other switches keep off state, and the positive pole of battery Cell16 links to each other with the positive input terminal of subtraction circuit, and the negative input end of negative pole and subtraction circuit links to each other; Vout end output voltage is proportional to the voltage of battery Cell16, promptly measures the magnitude of voltage of battery Cell16.
Claims (5)
- One kind 16 the string electric battery in each monomer battery voltage ordinary surveying circuit; It is characterized in that: the negative pole of battery Cell1 connects switch S 1 in the series battery, and the positive pole of battery Cell1, Cell2, Cell3, Cell4, Cell5, Cell6, Cell7, Cell8, Cell9, Cell10, Cell11, Cell12, Cell13, Cell14, Cell15, Cell16 connects switch S 10, S2, S11, S3, S12, S4, S13, S5, S14, S6, S15, S7, S16, S8, S17, S9 respectively.
- 2. each monomer battery voltage ordinary surveying circuit in the 16 string electric battery according to claim 1, it is characterized in that: the other end of switch S 1, S2, S3, S4, S5, S6, S7, S8, S9 links to each other, and connects switch S 18 and S21.
- 3. each monomer battery voltage ordinary surveying circuit in the 16 string electric battery according to claim 1, it is characterized in that: the other end of switch S 10, S11, S12, S13, S14, S15, S16, S17 links to each other, and connects switch S 19 and S20.
- 4. each monomer battery voltage ordinary surveying circuit in the 16 string electric battery according to claim 1, it is characterized in that: the other end of switch S 18 and S19 is connected resistance R 1, and the other end of switch S 20 and S21 is connected resistance R 2.
- 5. each monomer battery voltage ordinary surveying circuit in the 16 string electric battery according to claim 1; It is characterized in that: negative input end and the resistance R 3 of the other end concatenation operation amplifier Op-Amp of resistance R 1; The output terminal of the other end concatenation operation amplifier Op-Amp of resistance R 3; Positive input terminal and the resistance R 4 of the other end concatenation operation amplifier Op-Amp of resistance R 2, the other end ground connection of resistance R 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201444580U CN202548190U (en) | 2012-04-09 | 2012-04-09 | Circuit for simply measuring voltages of each single battery in 16 battery packs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201444580U CN202548190U (en) | 2012-04-09 | 2012-04-09 | Circuit for simply measuring voltages of each single battery in 16 battery packs |
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| Publication Number | Publication Date |
|---|---|
| CN202548190U true CN202548190U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201444580U Expired - Fee Related CN202548190U (en) | 2012-04-09 | 2012-04-09 | Circuit for simply measuring voltages of each single battery in 16 battery packs |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941074A (en) * | 2013-01-17 | 2014-07-23 | 赵恩海 | Circuit used for accurately measuring voltage of each single battery in arbitrary cascade battery pack |
| CN112485683A (en) * | 2020-11-18 | 2021-03-12 | 深圳芯典半导体科技有限公司 | Voltage sampling circuit of multi-lithium battery pack |
-
2012
- 2012-04-09 CN CN2012201444580U patent/CN202548190U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941074A (en) * | 2013-01-17 | 2014-07-23 | 赵恩海 | Circuit used for accurately measuring voltage of each single battery in arbitrary cascade battery pack |
| CN112485683A (en) * | 2020-11-18 | 2021-03-12 | 深圳芯典半导体科技有限公司 | Voltage sampling circuit of multi-lithium battery pack |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Enhai Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhao Enhai Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20140409 |