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WO2007007111A3 - Current measurement apparatus - Google Patents

Current measurement apparatus Download PDF

Info

Publication number
WO2007007111A3
WO2007007111A3 PCT/GB2006/002608 GB2006002608W WO2007007111A3 WO 2007007111 A3 WO2007007111 A3 WO 2007007111A3 GB 2006002608 W GB2006002608 W GB 2006002608W WO 2007007111 A3 WO2007007111 A3 WO 2007007111A3
Authority
WO
WIPO (PCT)
Prior art keywords
measurement apparatus
current measurement
current
activates
switches
Prior art date
Application number
PCT/GB2006/002608
Other languages
French (fr)
Other versions
WO2007007111A2 (en
Inventor
Frank Sheppard
John Sheppard
Tony Smith
Dan Vysoudil
Original Assignee
A D Developments Ltd
Frank Sheppard
John Sheppard
Tony Smith
Dan Vysoudil
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 A D Developments Ltd, Frank Sheppard, John Sheppard, Tony Smith, Dan Vysoudil filed Critical A D Developments Ltd
Publication of WO2007007111A2 publication Critical patent/WO2007007111A2/en
Publication of WO2007007111A3 publication Critical patent/WO2007007111A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
    • B60L1/04—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits fed by the power supply line
    • B60L1/06—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits fed by the power supply line using only one supply
    • B60L1/08—Methods and devices for control or regulation
    • 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
    • G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/08—Circuits for altering the measuring range
    • G01R15/09—Autoranging circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for DC applications
    • 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
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

A current measurement apparatus comprises first and second switches (10b, 10c) connected in parallel and operating in different current ranges, coupled to a processor which measures current and a controller which activates one or the other switch depending on the measured current.
PCT/GB2006/002608 2005-07-13 2006-07-13 Current measurement apparatus WO2007007111A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0514390A GB2428301B (en) 2005-07-13 2005-07-13 Current measurement apparatus
GB0514390.4 2005-07-13

Publications (2)

Publication Number Publication Date
WO2007007111A2 WO2007007111A2 (en) 2007-01-18
WO2007007111A3 true WO2007007111A3 (en) 2007-04-05

Family

ID=34897176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/002608 WO2007007111A2 (en) 2005-07-13 2006-07-13 Current measurement apparatus

Country Status (2)

Country Link
GB (1) GB2428301B (en)
WO (1) WO2007007111A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7978452B2 (en) 2007-09-26 2011-07-12 Lear Corporation Automotive overcurrent protection
DE102008014677A1 (en) 2008-03-18 2009-09-24 Continental Automotive Gmbh Method and device for operating a circuit arrangement
JP4835733B2 (en) * 2009-08-27 2011-12-14 トヨタ自動車株式会社 VEHICLE CHARGE CONTROL DEVICE AND ELECTRIC VEHICLE HAVING THE SAME
FR2958408B1 (en) * 2010-04-01 2012-12-07 Continental Automotive France CURRENT MEASURING DEVICE AND METHOD FOR CONTROLLING AT LEAST TWO CASCADED ELECTRICAL EQUIPMENT
DE102010030826A1 (en) 2010-07-01 2012-01-05 Robert Bosch Gmbh Method and circuit arrangement for diagnosing a load path in a vehicle
FR2983300B1 (en) * 2011-11-30 2014-01-10 Valeo Etudes Electroniques SYSTEM FOR MEASURING CHARGE CURRENT AND DIAGNOSIS OF ABSENCE OF LOAD OR OVERLOAD
CN102955087B (en) * 2012-11-06 2014-12-24 中国科学院电工研究所 Equipment for measuring critical current characteristics of high temperature superconductivity long strip
CN104237664A (en) * 2013-06-20 2014-12-24 国家电网公司 High-voltage testing equipment carrier loader
EP2843425B1 (en) 2013-08-27 2018-11-21 Nxp B.V. Current measuring circuit
JP2016200570A (en) * 2015-04-14 2016-12-01 ルネサスエレクトロニクス株式会社 Semiconductor device current detection method and semiconductor device
CN110174545A (en) * 2019-04-30 2019-08-27 上海芯导电子科技有限公司 A kind of multiplexing current detection circuit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999049377A1 (en) * 1998-03-24 1999-09-30 Infineon Technologies Ag Circuit for controlling and measuring the load current through a load
WO2002031517A2 (en) * 2000-10-13 2002-04-18 Primarion, Inc. System and method for current sensing
EP1351061A1 (en) * 2002-04-02 2003-10-08 Dialog Semiconductor GmbH Fuel gauge power switch with current sense

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8722194D0 (en) * 1987-09-21 1987-10-28 Salplex Ltd Information handling & control systems
JPH03261871A (en) * 1990-03-12 1991-11-21 Fujitsu Ltd current measuring device
DE4125302C2 (en) * 1991-07-31 2003-04-30 Bosch Gmbh Robert Device for monitoring an electrical consumer in a vehicle
DE4139855A1 (en) * 1991-12-03 1993-06-09 Kabushiki Kaisha Sanwa Keiki Seisakusho, Akishima, Tokio/Tokyo, Jp Analogue multimeter for measuring voltage, current and resistance - has autoranging attenuator circuit and indicates selected measurement range
DE4338462B4 (en) * 1993-11-11 2004-04-22 Hella Kg Hueck & Co. Control system for electrical consumers in motor vehicles
EP0743529B1 (en) * 1995-05-16 2004-07-28 STMicroelectronics S.r.l. Method and corresponding circuit for detecting an open load
DE19546553C1 (en) * 1995-12-13 1997-05-07 Daimler Benz Ag Method for testing electrical consumers in a vehicle electrical system
JPH09218233A (en) * 1996-02-08 1997-08-19 Harness Sogo Gijutsu Kenkyusho:Kk Load disconnection detection device in vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999049377A1 (en) * 1998-03-24 1999-09-30 Infineon Technologies Ag Circuit for controlling and measuring the load current through a load
WO2002031517A2 (en) * 2000-10-13 2002-04-18 Primarion, Inc. System and method for current sensing
EP1351061A1 (en) * 2002-04-02 2003-10-08 Dialog Semiconductor GmbH Fuel gauge power switch with current sense

Also Published As

Publication number Publication date
GB0514390D0 (en) 2005-08-17
WO2007007111A2 (en) 2007-01-18
GB2428301B (en) 2008-02-13
GB2428301A (en) 2007-01-24

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