HK1166135A1 - Battery voltage detecting circuit and battery management system - Google Patents

Battery voltage detecting circuit and battery management system

Info

Publication number
HK1166135A1
HK1166135A1 HK12106935.1A HK12106935A HK1166135A1 HK 1166135 A1 HK1166135 A1 HK 1166135A1 HK 12106935 A HK12106935 A HK 12106935A HK 1166135 A1 HK1166135 A1 HK 1166135A1
Authority
HK
Hong Kong
Prior art keywords
switch
sampling voltage
battery
unit
control
Prior art date
Application number
HK12106935.1A
Inventor
Caihui Zhang
Tao Hou
Xiangsheng Ju
Original Assignee
Shenzhen Sed Internat Power Technology Co Lt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Sed Internat Power Technology Co Lt filed Critical Shenzhen Sed Internat Power Technology Co Lt
Publication of HK1166135A1 publication Critical patent/HK1166135A1/en

Links

Abstract

The invention is suitable for the field of electronic circuits and provides a battery voltage detection circuit and a battery management system. The circuit comprises a plurality of switch units, a first operational amplification unit, a second operational amplification unit, a control unit and a power supply changeover unit; the plurality of switch units are used for switch-on and switch-off under the control of a control signal; the first operational amplification unit is used for sampling voltage of an odd number of corresponding single batteries when the switch units are switched on, and outputting first sampling voltage; the second operational amplification unit is used for sampling voltage of an even number of corresponding single batteries when the switch units are switched on and outputting second sampling voltage; the control unit is used for outputting the control signal and controlling the switch-on and switch-off of the switch units when power is supplied and performing analog-to-digital conversion on the first sampling voltage and the second sampling voltage; and the power supply changeover unit is used for providing a stable working power supply for the control unit.Two operational amplifier units are staggered in an odd and even way and sample a battery to be detected; and the circuit has a simple structure, and is low in cost, reduces the electricity consumption difference of the battery, switch control is provided, and power consumption during standby is further reduced.
HK12106935.1A 2011-09-16 2012-07-13 Battery voltage detecting circuit and battery management system HK1166135A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110275389 CN102331561B (en) 2011-09-16 2011-09-16 Battery voltage detection circuit and battery management system

Publications (1)

Publication Number Publication Date
HK1166135A1 true HK1166135A1 (en) 2012-10-19

Family

ID=45483403

Family Applications (1)

Application Number Title Priority Date Filing Date
HK12106935.1A HK1166135A1 (en) 2011-09-16 2012-07-13 Battery voltage detecting circuit and battery management system

Country Status (2)

Country Link
CN (1) CN102331561B (en)
HK (1) HK1166135A1 (en)

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CN103078154A (en) * 2012-05-18 2013-05-01 福建万众百源实业有限公司 Fore-lying zero-power consumption control electronic switch and control method for new energy source lithium ion battery pack
CN103884988B (en) * 2012-12-21 2017-02-08 比亚迪股份有限公司 Battery pack fault detection device and detection method
CN103972599A (en) * 2013-02-06 2014-08-06 北京尚能联创科技有限公司 Battery parameter detection circuit, and battery pack and operating method thereof
CN103904376B (en) * 2014-04-23 2016-08-17 武汉市欧力普能源与自动化技术有限公司 The control system of a kind of distributed battery management system adaptive optimization and method
CN105629029B (en) * 2014-11-27 2018-07-06 华润矽威科技（上海）有限公司 Battery pack voltage detecting system and detection method
CN105403838B (en) * 2015-10-27 2018-09-04 惠州市亿能电子有限公司 A kind of voltage measuring apparatus of portable multiple batteries monomer
CN105629046B (en) * 2015-12-18 2019-02-15 无锡中感微电子股份有限公司 Multiple batteries observation circuit and its system
CN105896665A (en) * 2016-05-17 2016-08-24 福建万众百源实业有限公司 Super-low power-consumption control circuit for new energy power lithium battery pack
CN105866513B (en) * 2016-06-07 2018-08-21 圣邦微电子（北京）股份有限公司 Series battery voltage carry circuit
TWI607226B (en) * 2016-07-27 2017-12-01 致茂電子股份有限公司 Detecting apparatus for batteries and detecting method thereof
CN107664726A (en) * 2016-07-28 2018-02-06 盐城市惠众新能源科技有限公司 The control method of switching network detecting system and switching network detecting system
CN106848444A (en) * 2016-11-25 2017-06-13 惠州市蓝微新源技术有限公司 A kind of battery pack voltage reduction method and reduction voltage circuit
CN106842052A (en) * 2017-02-08 2017-06-13 深圳市沃特玛电池有限公司 Battery management system
CN107742981A (en) * 2017-08-02 2018-02-27 宁德时代新能源科技股份有限公司 Low-voltage power supply circuit, battery sampling unit and vehicle power supply battery
CN107565077B (en) * 2017-09-30 2024-04-30 深圳拓邦股份有限公司 Battery pack communication circuit
US11264653B2 (en) * 2017-10-16 2022-03-01 Neapco Intellectual Property Holdings, Llc Battery cell monitoring system
CN107991619B (en) * 2017-11-23 2023-11-21 杰华特微电子股份有限公司 Battery voltage detection circuit and detection method thereof
CN110736912B (en) * 2018-07-20 2021-06-08 宁德时代新能源科技股份有限公司 Circuit fault detection method and sampling detection circuit
CN110148799B (en) * 2019-04-11 2020-10-30 华中科技大学 Switching device and switching method of lithium ion battery
CN110209233A (en) * 2019-06-03 2019-09-06 长沙优力电驱动系统有限公司 Power module
TWI714467B (en) * 2020-03-02 2020-12-21 盛群半導體股份有限公司 Voltage monitoring apparatus and voltage detection circuit thereof
CN111707949B (en) * 2020-05-26 2023-06-16 联创汽车电子有限公司 Voltage detection device and voltage detection method
CN113466732A (en) * 2021-06-28 2021-10-01 广西电网有限责任公司贵港供电局 Battery measuring circuit and battery measuring instrument
CN115144773B (en) * 2022-09-01 2022-11-08 奉加微电子（昆山）有限公司 Voltage measurement system and method for battery pack

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JP4605047B2 (en) * 2006-02-24 2011-01-05 パナソニック株式会社 Laminate voltage measuring device
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Also Published As

Publication number Publication date
CN102331561B (en) 2013-06-26
CN102331561A (en) 2012-01-25

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20170916