CN201041579Y - A multi-battery unit and single-battery voltage measuring circuit - Google Patents
A multi-battery unit and single-battery voltage measuring circuit Download PDFInfo
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- CN201041579Y CN201041579Y CNU2007200072058U CN200720007205U CN201041579Y CN 201041579 Y CN201041579 Y CN 201041579Y CN U2007200072058 U CNU2007200072058 U CN U2007200072058U CN 200720007205 U CN200720007205 U CN 200720007205U CN 201041579 Y CN201041579 Y CN 201041579Y
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Abstract
The utility model relates to a measuring circuit for the voltage measurement to a single battery in a multi-section battery, and is suitable for measuring voltage for a certain single battery to be used for connection in series in the re-chargeable batteries. The utility model measures the voltage for every monomer battery through a voltage-current-voltage conversion circuit connected on each monomer battery, the precision of the measuring circuit of the battery monomer voltage provided by the utility model is high, and the cost is low.
Description
[technical field]
The utility model relates to a kind of to the single battery tension measuring circuit in the multiple batteries group, and the rechargeable battery that uses that is suitable for connecting uses, and can detect certain single battery voltage in the series connection rechargeable battery pack.
[background technology]
The electric battery that constitutes after multiple batteries is connected is because the higher and different test reference point of voltage is difficult to the measurement of battery cell voltage, and is all the more so when particularly measuring accuracy, measurement power consumption and circuit cost being had relatively high expectations.
[utility model content]
Technical problem to be solved in the utility model is to provide a kind of high precision, the metering circuit of battery cell voltage cheaply.
The utility model adopts following two technical schemes based on same design:
A kind of multiple batteries group single battery tension measuring circuit, in each tested battery cell, the in-phase end IN+ of the anode concatenation operation amplifier OP of BAn, the negative terminal of BAn is by the end of oppisite phase IN-of the first resistance R n1 concatenation operation amplifier OP, the end of oppisite phase IN-of operational amplifier OP connects the emitter E of triode NPN simultaneously, and the output terminal OUT of amplifier OP is connected to the base stage B of triode NPN, and the collector C of triode NPN is connected to electric battery maximum potential end P+ by the second resistance R n2.The also available N type of described triode NPN field effect transistor NMOSFET1 replaces.
A kind of multiple batteries group single battery tension measuring circuit, in each tested battery cell, the negative terminal concatenation operation amplifier OP end of oppisite phase IN-of BAn, the anode of BAn is by the first resistance R n1 concatenation operation amplifier OP in-phase end IN+, operational amplifier OP positive terminal connects the drain D of N type field effect transistor NMOSFET1 simultaneously, and the output terminal OUT of operational amplifier OP is connected to the grid G of N type field effect transistor NMOSFET1, and the source S of NMOSFET1 is connected to electric battery potential minimum end P-by the second resistance R n2.The also available triode NPN of described N type field effect transistor NMOSFET1 replaces.
In above these two kinds of circuit, in tested battery cell, the second resistance R n2 both end voltage is approximately equal to the ratio that the BA terminal voltage multiply by the second resistance R n2 and the first resistance R n1.Other series connection respectively save monomer battery voltage (n=1,2,3...) by that analogy, therefore can detect the voltage of every joint cell.
The metering circuit precision height of battery cell voltage provided by the utility model, cost is low.
[description of drawings]
In conjunction with the embodiments the utility model is described in further detail with reference to the accompanying drawings.
Fig. 1 is the circuit diagram of first embodiment of the utility model.
Fig. 2 is the circuit diagram of second embodiment of the utility model.
[embodiment]
Embodiment one:
See also Fig. 1, multiple batteries group single battery tension measuring circuit, show it is the electric battery of n battery series connection among the figure, in each tested battery cell, the in-phase end IN+ of the anode concatenation operation amplifier OP of BAn, the negative terminal of BAn is by the end of oppisite phase IN-of the first resistance R n1 concatenation operation amplifier OP, the end of oppisite phase IN-of operational amplifier OP connects the emitter E of triode NPN simultaneously, and the output terminal OUT of operational amplifier OP is connected to the base stage B of triode NPN, and the collector C of triode NPN is connected to electric battery maximum potential end P+ by the second resistance R n2.The also available N type of this triode NPN field effect transistor NMOSFET1 replaces.
In above circuit, the second resistance R n2 both end voltage is approximately equal to the ratio that the BAn terminal voltage multiply by the second resistance R n2 and the first resistance R n1.According to this formula, can calculate the BAn both end voltage.When getting n=1,2,3..., can correspondingly calculate each single battery voltage.
Embodiment two:
See also Fig. 2, multiple batteries group single battery tension measuring circuit, show it is the electric battery of n battery series connection among the figure, in each tested battery cell, the negative terminal concatenation operation amplifier OP end of oppisite phase IN-of BAn, the anode of BAn is by the first resistance R n1 concatenation operation amplifier OP in-phase end IN+, operational amplifier OP positive terminal connects the drain D of N type field effect transistor NMOSFET1 simultaneously, and the output terminal OUT of operational amplifier OP is connected to the grid G of NMOSFET1, and the source S of NMOSFET1 is connected to electric battery potential minimum end P-by the second resistance R n2.The also available triode NPN of this N type field effect transistor NMOSFET1 replaces.
In above circuit, the second resistance R n2 both end voltage is approximately equal to the ratio that the BA terminal voltage multiply by the second resistance R n2 and the first resistance R n1.According to this formula, can calculate the BAn both end voltage.When getting n=1,2,3..., can correspondingly calculate each single battery voltage.
Claims (4)
1. multiple batteries group single battery tension measuring circuit, it is characterized in that: the in-phase end IN+ of the anode concatenation operation amplifier OP of each tested battery cell (BAn), the negative terminal of tested battery cell (BAn) is by the end of oppisite phase IN-of first resistance (Rn1) concatenation operation amplifier OP, the end of oppisite phase IN-of operational amplifier OP connects the emitter E of triode NPN simultaneously, and the output terminal OUT of operational amplifier OP is connected to the base stage B of triode NPN, and the collector C of triode NPN is connected to electric battery maximum potential end P+ by second resistance (Rn2).
2. a kind of multiple batteries group single battery tension measuring circuit as claimed in claim 1 is characterized in that: described triode NPN can adopt N type field effect transistor NMOSFET1 to replace.
3. multiple batteries group single battery tension measuring circuit, it is characterized in that: in each tested battery cell, the negative terminal concatenation operation amplifier OP end of oppisite phase IN-of BAn, the anode of BAn is by first resistance (Rn1) concatenation operation amplifier OP in-phase end IN+, operational amplifier OP positive terminal connects the drain D of N type field effect transistor NMOSFET1 simultaneously, and the output terminal OUT of operational amplifier OP is connected to the grid G of NMOSFET1, and the source S of NMOSFET1 is connected to electric battery potential minimum end P-by second resistance (Rn2).
4. a kind of multiple batteries group single battery tension measuring circuit as claimed in claim 3 is characterized in that: described N type field effect transistor NMOSFET1 can adopt triode NPN to replace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200072058U CN201041579Y (en) | 2007-05-28 | 2007-05-28 | A multi-battery unit and single-battery voltage measuring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200072058U CN201041579Y (en) | 2007-05-28 | 2007-05-28 | A multi-battery unit and single-battery voltage measuring circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201041579Y true CN201041579Y (en) | 2008-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200072058U Expired - Fee Related CN201041579Y (en) | 2007-05-28 | 2007-05-28 | A multi-battery unit and single-battery voltage measuring circuit |
Country Status (1)
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|---|---|
| CN (1) | CN201041579Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162834A (en) * | 2010-12-14 | 2011-08-24 | 宁波飞驰达电子科技发展有限公司 | Battery voltage detecting device in serially-connected battery pack and method of battery voltage detecting device |
| CN101533054B (en) * | 2009-04-14 | 2012-08-08 | 合肥国轩高科动力能源有限公司 | Battery casing insulation detection device |
| CN102955056A (en) * | 2011-08-26 | 2013-03-06 | 华润矽威科技（上海）有限公司 | Sampling circuit and sampling method for high-end battery voltage |
| CN101738523B (en) * | 2008-11-14 | 2013-07-24 | 统达能源股份有限公司 | Device for detecting voltage of serially-connected cells |
-
2007
- 2007-05-28 CN CNU2007200072058U patent/CN201041579Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738523B (en) * | 2008-11-14 | 2013-07-24 | 统达能源股份有限公司 | Device for detecting voltage of serially-connected cells |
| CN101533054B (en) * | 2009-04-14 | 2012-08-08 | 合肥国轩高科动力能源有限公司 | Battery casing insulation detection device |
| CN102162834A (en) * | 2010-12-14 | 2011-08-24 | 宁波飞驰达电子科技发展有限公司 | Battery voltage detecting device in serially-connected battery pack and method of battery voltage detecting device |
| CN102955056A (en) * | 2011-08-26 | 2013-03-06 | 华润矽威科技（上海）有限公司 | Sampling circuit and sampling method for high-end battery voltage |
| CN102955056B (en) * | 2011-08-26 | 2017-02-08 | 华润矽威科技（上海）有限公司 | Sampling circuit and sampling method for battery pack high-voltage end battery voltage |
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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: FUZHOU GAUQI JINGYUAN ELECTRONIC TECHNOLOGY CO., Free format text: FORMER OWNER: FUZHOU GAOBEI EMBEDDED TECH. CO., LTD. Effective date: 20081107 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081107 Address after: No. 611 Industrial Road, Fujian torch hi tech Innovation Park, Gulou District, Fujian, five storey, north 2, two floor, east 5 room, postcode: 350003, Fuzhou Patentee after: Fuzhou Goldenchip Electronics Co., Ltd. Address before: Room five, north 4, building of Fujian torch hi tech Pioneer Park, Gulou District, Fujian, Fuzhou Province, China: 350000 Patentee before: Fuzhou Gaobei Embedded Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: FUZHOU GOLDENCHIP IPCORE POWER SUPPLY SCIENCE AND Free format text: FORMER NAME: FUZHOU GOLDENCHIP WAFER ELECTRONIC SCIENCE AND TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 350003, Gulou District, Fujian, Fuzhou Software Zone No. 89, A District, building 31, two floor Patentee after: Fuzhou Goldenchip Power Supply Technology Co., Ltd. Address before: 350003, Fujian torch hi tech Pioneer Park, No. 611, industrial road, Gulou District, Fuzhou, five, north 2, two, East, room 5, Fujian Patentee before: Fuzhou Goldenchip Electronics Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: FUJIAN GAOQI ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: FUZHOU GOLDENCHIP POWER SUPPLY TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 350003, Fujian, Fuzhou Gulou District 89 software Avenue, Fuzhou Software Park, E District, building 13, three floor Patentee after: Fujian Gaoqi Electronic Technology Co., Ltd. Address before: 350003, Gulou District, Fujian, Fuzhou Software Zone No. 89, A District, building 31, two floor Patentee before: Fuzhou Goldenchip Power Supply Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20150528 |
|
| EXPY | Termination of patent right or utility model |