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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
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IB2007/004303
Other languages
French (fr)
Other versions
WO2008053365A2 (en
Inventor
Deeyu C Chen
Michael L Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Controls Technology Co
Original Assignee
Johnson Controls Technology Co
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 Technology Co filed Critical Johnson Controls Technology Co
Publication of WO2008053365A2 publication Critical patent/WO2008053365A2/en
Publication of WO2008053365A3 publication Critical patent/WO2008053365A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)

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 Ceased 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 Ceased 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
CN113964395B (en) * 2020-07-20 2025-02-11 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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