WO2008053365A3 - Over-voltage protection circuit and method - Google Patents

Over-voltage protection circuit and method Download PDF

Info

Publication number
WO2008053365A3
WO2008053365A3 PCT/IB2007/004303 IB2007004303W WO2008053365A3 WO 2008053365 A3 WO2008053365 A3 WO 2008053365A3 IB 2007004303 W IB2007004303 W IB 2007004303W WO 2008053365 A3 WO2008053365 A3 WO 2008053365A3
Authority
WO
WIPO (PCT)
Prior art keywords
over
comparator
protection circuit
voltage
coupled
Prior art date
Application number
PCT/IB2007/004303
Other languages
French (fr)
Other versions
WO2008053365A2 (en
Inventor
Deeyu C Chen
Michael L Thompson
Original Assignee
Johnson Controls Tech Co
Deeyu C Chen
Michael L Thompson
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 Johnson Controls Tech Co, Deeyu C Chen, Michael L Thompson filed Critical Johnson Controls Tech Co
Publication of WO2008053365A2 publication Critical patent/WO2008053365A2/en
Publication of WO2008053365A3 publication Critical patent/WO2008053365A3/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
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00308—Overvoltage protection
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or 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
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1423—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

A battery management system includes a plurality of comparator circuits and each of the comparator circuits is associated with a single cell of a battery system. Each comparator circuit includes a source for providing a reference voltage and a comparator coupled to the source and to a cell of the battery system. The comparator is configured to provide a signal representative of an over-voltage condition if a voltage of the cell to which it is coupled exceeds the reference voltage. A device is coupled to the plurality of comparator circuits and is configured to disconnect the battery system from an electrical load if at least one of the comparator circuits provides a signal representative of an over- voltage condition.
PCT/IB2007/004303 2006-05-17 2007-05-16 Over-voltage protection circuit and method WO2008053365A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80097306P 2006-05-17 2006-05-17
US60/800,973 2006-05-17

Publications (2)

Publication Number Publication Date
WO2008053365A2 WO2008053365A2 (en) 2008-05-08
WO2008053365A3 true WO2008053365A3 (en) 2008-10-23

Family

ID=39344671

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/004303 WO2008053365A2 (en) 2006-05-17 2007-05-16 Over-voltage protection circuit and method

Country Status (1)

Country Link
WO (1) WO2008053365A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2961639B1 (en) 2010-06-17 2012-12-21 Commissariat Energie Atomique BIPOLAR ARCHITECTURE LITHIUM ELECTROCHEMICAL ACCUMULATOR COMPRISING A SPECIFIC ELECTROLYTE ADDITIVE
DE102011079126B4 (en) * 2011-07-14 2023-02-02 Robert Bosch Gmbh Battery management system, battery, motor vehicle with battery management system and method for monitoring a battery
DE102011079292A1 (en) * 2011-07-18 2013-01-24 Sb Limotive Company Ltd. Battery management system and associated method for determining a state of charge of a battery, battery with battery management system and motor vehicle with battery management system
GB2566255B (en) * 2017-08-23 2021-02-24 Hyperdrive Innovation Ltd Battery safety protection
CN113964395A (en) * 2020-07-20 2022-01-21 力智电子股份有限公司 Battery secondary protection circuit and operation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5547775A (en) * 1991-04-26 1996-08-20 Sony Corporation Circuit for preventing overcharge and overdischarge of secondary batteries
US6054841A (en) * 1992-11-24 2000-04-25 Seiko Instruments Inc. Charge/discharge control circuit and chargeable electric power source apparatus
US6329795B1 (en) * 1998-05-15 2001-12-11 Seiko Instruments Inc. Charging and discharging control circuit and charging type power supply device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5547775A (en) * 1991-04-26 1996-08-20 Sony Corporation Circuit for preventing overcharge and overdischarge of secondary batteries
US6054841A (en) * 1992-11-24 2000-04-25 Seiko Instruments Inc. Charge/discharge control circuit and chargeable electric power source apparatus
US6329795B1 (en) * 1998-05-15 2001-12-11 Seiko Instruments Inc. Charging and discharging control circuit and charging type power supply device

Also Published As

Publication number Publication date
WO2008053365A2 (en) 2008-05-08

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