TW200419871A - Charging circuit for parallel charging in multiple battery systems - Google Patents

Charging circuit for parallel charging in multiple battery systems

Info

Publication number
TW200419871A
TW200419871A TW092134372A TW92134372A TW200419871A TW 200419871 A TW200419871 A TW 200419871A TW 092134372 A TW092134372 A TW 092134372A TW 92134372 A TW92134372 A TW 92134372A TW 200419871 A TW200419871 A TW 200419871A
Authority
TW
Taiwan
Prior art keywords
charging
parallel
charging circuit
battery
batteries
Prior art date
Application number
TW092134372A
Other languages
Chinese (zh)
Other versions
TWI231081B (en
Inventor
Vlad Popescu-Stanesti
Marian Niculae
Constantin Bucur
Original Assignee
O2Micro Inc
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
Priority claimed from US10/328,466 external-priority patent/US6611129B2/en
Priority claimed from US10/364,228 external-priority patent/US6977482B2/en
Priority claimed from US10/648,891 external-priority patent/US7064521B2/en
Application filed by O2Micro Inc filed Critical O2Micro Inc
Publication of TW200419871A publication Critical patent/TW200419871A/en
Application granted granted Critical
Publication of TWI231081B publication Critical patent/TWI231081B/en

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
    • H02J7/0018—Circuits for equalisation of charge between batteries using separate charge circuits
    • 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
    • H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
    • 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
    • H02J7/0025—Sequential battery discharge in systems with a plurality of batteries
    • 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
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0045—Converters combining the concepts of switch-mode regulation and linear regulation, e.g. linear pre-regulator to switching converter, linear and switching converter in parallel, same converter or same transistor operating either in linear or switching mode

Abstract

A charging circuit for controlling a system charging parameter provided to a host of rechargeable batteries, wherein the host of batteries includes at least a first battery and second battery that may be coupled in parallel. The charging circuit provides for fast charging of rechargeable batteries in parallel. Independent current and voltage sensing for each battery enables parallel charging of batteries at different charging currents. The charging circuit may be configured to accept either analog or digital signals from an associated power management unit.
TW092134372A 2002-12-23 2003-12-05 Charging circuit for parallel charging in multiple battery systems TWI231081B (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US10/328,466 US6611129B2 (en) 2001-08-17 2002-12-23 Voltage mode, high accuracy battery charger
US10/364,228 US6977482B2 (en) 2003-02-11 2003-02-11 Selector circuit for power management in multiple battery systems
US45782603P 2003-03-26 2003-03-26
US48463503P 2003-07-03 2003-07-03
US10/618,901 US6861823B2 (en) 2001-08-17 2003-07-14 Charging circuit for controlling a charging parameter of a rechargeable battery
US10/648,891 US7064521B2 (en) 2001-08-17 2003-08-27 Charging circuit for parallel charging in multiple battery systems

Publications (2)

Publication Number Publication Date
TW200419871A true TW200419871A (en) 2004-10-01
TWI231081B TWI231081B (en) 2005-04-11

Family

ID=56290511

Family Applications (1)

Application Number Title Priority Date Filing Date
TW092134372A TWI231081B (en) 2002-12-23 2003-12-05 Charging circuit for parallel charging in multiple battery systems

Country Status (5)

Country Link
EP (1) EP2111682A4 (en)
JP (1) JP2005534278A (en)
AU (1) AU2003300320A1 (en)
TW (1) TWI231081B (en)
WO (1) WO2004059757A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI382629B (en) * 2005-07-19 2013-01-11 Linear Techn Inc Power manager and power managing method for battery-powered application
TWI495890B (en) * 2012-04-20 2015-08-11 O2Micro Int Ltd Systems and control methods for battery testing
CN107394856A (en) * 2017-08-31 2017-11-24 上海汇瑞半导体科技有限公司 A kind of parallel cells charging circuit and its charging method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110121653A1 (en) * 2005-02-18 2011-05-26 O2Micro International Limited Parallel powering of portable electrical devices
JP5170610B2 (en) * 2006-02-28 2013-03-27 日立工機株式会社 Charger
EP2589277B1 (en) 2010-06-30 2018-09-19 Ergotron, Inc. Electrical load management system and method
CN102710127B (en) * 2011-01-11 2015-05-20 瑞昱半导体股份有限公司 Single-inductance double-output power converter and driving method thereof
US10411468B2 (en) 2014-09-18 2019-09-10 Ergotron, Inc. Electrical load management system and method
DE102018207191A1 (en) * 2018-05-09 2019-11-14 Robert Bosch Gmbh Device for providing a charging current for at least one battery and method for operating the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270080A (en) * 1978-12-14 1981-05-26 Sun Electric Corporation Automatic battery charge apparatus and method
US5442274A (en) * 1992-08-27 1995-08-15 Sanyo Electric Company, Ltd. Rechargeable battery charging method
JP3069498B2 (en) 1994-09-01 2000-07-24 富士通株式会社 Charge / discharge device and electronic equipment
US5625275A (en) * 1995-05-24 1997-04-29 Ast Research, Inc. Power supply which provides a variable charging current to a battery in a portable computer system
US5715156A (en) * 1996-06-24 1998-02-03 Yilmaz; G. George Method and apparatus for providing AC or DC power for battery powered tools
US5917308A (en) 1997-09-10 1999-06-29 Lucent Technologies Inc. System and method for controlling excessive charging-current in a battery power system
JPH11234915A (en) * 1998-02-20 1999-08-27 Fujitsu Ltd Power supply device with chargeable battery and charge/ discharge method of a plurality of batteries
US6184660B1 (en) * 1998-03-26 2001-02-06 Micro International, Ltd. High-side current-sensing smart battery charger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI382629B (en) * 2005-07-19 2013-01-11 Linear Techn Inc Power manager and power managing method for battery-powered application
TWI495890B (en) * 2012-04-20 2015-08-11 O2Micro Int Ltd Systems and control methods for battery testing
CN107394856A (en) * 2017-08-31 2017-11-24 上海汇瑞半导体科技有限公司 A kind of parallel cells charging circuit and its charging method
CN107394856B (en) * 2017-08-31 2024-01-30 旋智电子科技（上海）有限公司 Parallel battery charging circuit and charging method thereof

Also Published As

Publication number Publication date
AU2003300320A8 (en) 2004-07-22
EP2111682A2 (en) 2009-10-28
AU2003300320A1 (en) 2004-07-22
WO2004059757A3 (en) 2005-03-24
WO2004059757A2 (en) 2004-07-15
TWI231081B (en) 2005-04-11
EP2111682A4 (en) 2009-10-28
JP2005534278A (en) 2005-11-10

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees
MK4A Expiration of patent term of an invention patent