TWI369833B - Conversion system and battery management system with balanced cell currents,and method for balancing cell currents - Google Patents

Conversion system and battery management system with balanced cell currents,and method for balancing cell currents

Info

Publication number
TWI369833B
TWI369833B TW098102370A TW98102370A TWI369833B TW I369833 B TWI369833 B TW I369833B TW 098102370 A TW098102370 A TW 098102370A TW 98102370 A TW98102370 A TW 98102370A TW I369833 B TWI369833 B TW I369833B
Authority
TW
Taiwan
Prior art keywords
cell currents
battery management
management system
balanced
balancing
Prior art date
Application number
TW098102370A
Other languages
English (en)
Other versions
TW200937803A (en
Inventor
Guoxing Li
Xiaohu Tang
Original Assignee
O2Micro Int Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40303914&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=TWI369833(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by O2Micro Int Ltd filed Critical O2Micro Int Ltd
Publication of TW200937803A publication Critical patent/TW200937803A/zh
Application granted granted Critical
Publication of TWI369833B publication Critical patent/TWI369833B/zh

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Analogue/Digital Conversion (AREA)
TW098102370A 2008-02-01 2009-01-22 Conversion system and battery management system with balanced cell currents,and method for balancing cell currents TWI369833B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6320508P 2008-02-01 2008-02-01
US12/082,913 US7965061B2 (en) 2008-02-01 2008-04-15 Conversion systems with balanced cell currents

Publications (2)

Publication Number Publication Date
TW200937803A TW200937803A (en) 2009-09-01
TWI369833B true TWI369833B (en) 2012-08-01

Family

ID=40303914

Family Applications (1)

Application Number Title Priority Date Filing Date
TW098102370A TWI369833B (en) 2008-02-01 2009-01-22 Conversion system and battery management system with balanced cell currents,and method for balancing cell currents

Country Status (5)

Country Link
US (1) US7965061B2 (zh)
EP (1) EP2086086A3 (zh)
JP (1) JP4861396B2 (zh)
CN (1) CN101499671B (zh)
TW (1) TWI369833B (zh)

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JP4237804B2 (ja) * 2007-03-28 2009-03-11 株式会社東芝 組電池の保護装置及び電池パック装置
US8853885B2 (en) * 2008-12-31 2014-10-07 Linear Technology Corporation Method and system for voltage independent power supply load sharing
DE102009000396B4 (de) * 2009-01-23 2019-03-14 Robert Bosch Gmbh Spannungserfassung von Batteriezellen
JP5434168B2 (ja) * 2009-03-17 2014-03-05 株式会社リコー 二次電池の保護用半導体装置およびそれを用いたバッテリパックならびに電子機器
US8148942B2 (en) 2009-11-05 2012-04-03 O2Micro International Limited Charging systems with cell balancing functions
US9291680B2 (en) 2009-12-29 2016-03-22 O2Micro Inc. Circuits and methods for measuring a cell voltage in a battery
US8629679B2 (en) * 2009-12-29 2014-01-14 O2Micro, Inc. Circuits and methods for measuring cell voltages in battery packs
JPWO2011118484A1 (ja) * 2010-03-24 2013-07-04 株式会社Ｇｓユアサ 二次電池システム
JP5606871B2 (ja) * 2010-10-26 2014-10-15 ラピスセミコンダクタ株式会社 半導体回路、半導体装置、配線の異常診断方法、及び異常診断プログラム
US8723482B2 (en) * 2010-11-04 2014-05-13 Elite Power Solutions Llc Battery unit balancing system
CN102457078A (zh) * 2011-03-30 2012-05-16 凹凸电子（武汉）有限公司 电池均衡电路、电池均衡系统及方法
US20150069960A1 (en) * 2011-03-31 2015-03-12 Kabushiki Kaishi Toyota Jidoshokki Auxiliary Battery Charging Apparatus
US9128165B2 (en) * 2011-05-04 2015-09-08 Datang Nxp Semiconductors Co., Ltd. Battery cell impedance measurement method and apparatus
US9401606B2 (en) * 2011-10-24 2016-07-26 Infineon Technologies Americas Corp. System and method for providing active power balancing
JP5730401B2 (ja) * 2011-10-28 2015-06-10 ルネサスエレクトロニクス株式会社 バッテリシステム
US9136714B2 (en) * 2012-07-13 2015-09-15 Fu-Sheng Tsai Method and apparatus for performing active balancing control with aid of voltage information sharing
TWI533007B (zh) * 2012-08-15 2016-05-11 凹凸科技國際股份有限公司 電池測量電路、系統及方法
US9368991B2 (en) 2012-10-30 2016-06-14 The Board Of Trustees Of The University Of Alabama Distributed battery power electronics architecture and control
KR101816978B1 (ko) * 2012-11-19 2018-01-09 비와이디 컴퍼니 리미티드 배터리 어셈블리에 대한 보호 디바이스 및 보호 시스템
JP6055298B2 (ja) * 2012-12-14 2016-12-27 ローム株式会社 シャント回路、充電システム、及び集積回路
CN104283248B (zh) 2013-07-12 2016-12-28 凹凸电子（武汉）有限公司 电池模块、电流平衡方法以及电路
JP6150149B2 (ja) * 2013-09-26 2017-06-21 富士電機株式会社 キャパシタの並列モニタ回路
CN104682466B (zh) * 2013-11-29 2017-04-26 展讯通信（上海）有限公司 充电控制电路的校准方法和校准电路
US10293693B2 (en) * 2015-04-21 2019-05-21 Samsung Electronics Co., Ltd. Battery control method and apparatus, battery module, and battery pack
CN104953658B (zh) * 2015-06-19 2018-11-09 华润矽威科技（上海）有限公司 电池电压转换电路及电池管理系统
WO2017148496A1 (en) * 2016-03-01 2017-09-08 Volvo Truck Corporation A method and system for controlling a current being fed to a battery pack
JP6451901B2 (ja) * 2016-06-02 2019-01-16 株式会社村田製作所 電源システム
US10131245B2 (en) * 2016-08-16 2018-11-20 Ford Global Technologies, Llc Electrified vehicle DC power conversion with distributed control
US11264653B2 (en) * 2017-10-16 2022-03-01 Neapco Intellectual Property Holdings, Llc Battery cell monitoring system
KR102236384B1 (ko) * 2017-10-27 2021-04-05 주식회사 엘지화학 배터리 밸런싱을 위한 장치 및 그것을 포함하는 배터리팩
US11495846B2 (en) * 2018-08-28 2022-11-08 Donald P. H. Wu Secondary aggregate battery with spatial separation of operation temperatures
KR102131985B1 (ko) * 2018-11-05 2020-07-08 현대오트론 주식회사 배터리 관리 장치 및 그것의 동작 방법
CN112655145B (zh) * 2018-11-19 2023-12-05 深圳迈瑞生物医疗电子股份有限公司 一种供电装置和超声台车
CN111431251B (zh) * 2018-12-21 2024-01-26 恩智浦有限公司 双回路电池充电系统
CN111435152B (zh) * 2019-01-14 2022-06-21 无锡有容微电子有限公司 一种电池电压的检测电路及电池组的电池电压检测模块
EP3985406A1 (en) * 2020-10-16 2022-04-20 O2Micro, Inc. Controller and method for detecting battery cell voltage
CN114336853B (zh) * 2021-12-29 2023-11-28 西安华泰半导体科技有限公司 一种针对多节锂电池组分时复用采样电路的均衡电路结构

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JP3721839B2 (ja) * 1999-03-24 2005-11-30 新神戸電機株式会社 セル電圧検出回路及び電池電圧検出装置
JP2002204537A (ja) * 2000-12-28 2002-07-19 Japan Storage Battery Co Ltd 組電池装置
CN1316710C (zh) 2003-05-13 2007-05-16 长沙交通学院 蓄电池或超级电容的充放电均衡方法与装置
CN1315239C (zh) * 2003-09-04 2007-05-09 北京市世纪博纳能源技术有限责任公司 具有均衡充电控制电路的电池组
US7508165B2 (en) 2004-10-19 2009-03-24 Denso Corporation Cell voltage equalization apparatus for combined battery pack including circuit driven by power supplied by the combined battery pack
US7498868B2 (en) * 2005-08-05 2009-03-03 Denso Corporation Current mirror circuit and constant current circuit having the same
CN101064436A (zh) * 2006-04-27 2007-10-31 神讯电脑(昆山)有限公司 多串电池平衡电路
US7466104B2 (en) * 2006-10-13 2008-12-16 O2 Micro International Limited System and method for balancing cells in a battery pack with selective bypass paths
JP4702331B2 (ja) 2006-10-25 2011-06-15 株式会社デンソー 半導体集積回路装置

Also Published As

Publication number Publication date
US7965061B2 (en) 2011-06-21
TW200937803A (en) 2009-09-01
US20090195213A1 (en) 2009-08-06
EP2086086A2 (en) 2009-08-05
EP2086086A3 (en) 2010-11-17
CN101499671B (zh) 2013-03-06
JP2009187937A (ja) 2009-08-20
CN101499671A (zh) 2009-08-05
JP4861396B2 (ja) 2012-01-25

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