IN2015DN02557A - - Google Patents

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Publication number
IN2015DN02557A
IN2015DN02557A IN2557DEN2015A IN2015DN02557A IN 2015DN02557 A IN2015DN02557 A IN 2015DN02557A IN 2557DEN2015 A IN2557DEN2015 A IN 2557DEN2015A IN 2015DN02557 A IN2015DN02557 A IN 2015DN02557A
Authority
IN
India
Prior art keywords
current
switch
voltage
voltage source
amplitude
Prior art date
Application number
Inventor
Aurel-Vasile Neic
Original Assignee
Continental Automotive Gmbh
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 Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of IN2015DN02557A publication Critical patent/IN2015DN02557A/en

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Classifications

    • 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
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
    • 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
    • G01R19/0007—Frequency selective voltage or current level measuring
    • G01R19/0015—Frequency selective voltage or current level measuring separating AC and DC
    • 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
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/10—Measuring sum, difference or ratio
    • 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
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/22—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of ac into dc

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

The invention relates to a method and a device (1) for measuring a current (Ix) flowing through a switch (2) which has an unknown inner resistance (Rs) and two connections (3 , 4), a voltage difference (u8) being measured at the switch. During operation, the current (ip) provided by an AC voltage source (6), which is part of an AC voltage circuit (5) connected in parallel to the switch (2) , is superimposed on the current (Ix) to be measured, said current flowing through the switch (2) , by means of the AC voltage source , wherein both the amplitude (Ip) and the frequency (pf) of the current (ip) provided by the AC voltage source (6) are known. An AC voltage component (up) of the voltage difference (us) and the amplitude (Up) of the component are ascertained , and the current (Ix) between the connections (3 , 4) is ascertained and output proportionally to the amplitude (Ip) of the current (ip) of the AC voltage source (6).
IN2557DEN2015 2012-10-15 2013-10-14 IN2015DN02557A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012218773.1A DE102012218773A1 (en) 2012-10-15 2012-10-15 Method and device for measuring a current through a switch
PCT/EP2013/071383 WO2014060330A1 (en) 2012-10-15 2013-10-14 Method and device for measuring a current flowing through a switch

Publications (1)

Publication Number Publication Date
IN2015DN02557A true IN2015DN02557A (en) 2015-09-11

Family

ID=49382411

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2557DEN2015 IN2015DN02557A (en) 2012-10-15 2013-10-14

Country Status (5)

Country Link
US (1) US9664742B2 (en)
CN (1) CN104704376B (en)
DE (1) DE102012218773A1 (en)
IN (1) IN2015DN02557A (en)
WO (1) WO2014060330A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160209268A1 (en) * 2015-01-20 2016-07-21 Korea Advanced Institute Of Science And Technology Terahertz receiver and terahertz imaging sensor apparatus for high data rate
GB2550606B (en) * 2016-05-25 2019-10-16 Exact Projects Ltd Apparatus for and a method of detecting leakage of current
DE102017105317B3 (en) * 2017-03-14 2018-05-09 Helmholtz-Zentrum Dresden - Rossendorf E.V. Device for characterizing the electrical resistance of a test object
US10345834B2 (en) * 2017-08-09 2019-07-09 Qualcomm Incorporated Sensing total current of distributed load circuits independent of current distribution using distributed voltage averaging
CN109239441B (en) * 2018-11-08 2024-08-02 广东电网有限责任公司 Clamp meter loop switching device and clamp meter
EP4058816A1 (en) * 2019-11-13 2022-09-21 Phoenix Contact GmbH & Co. KG Contact-monitoring device
CN112649726B (en) * 2020-12-08 2023-08-25 上能电气股份有限公司 Switch class mechanical life test circuit and method
CN117517755B (en) * 2024-01-08 2024-03-19 石家庄科林电气股份有限公司 Method for rapidly determining alternating current component in electric quantity and protection measurement and control safety device
CN118117864A (en) * 2024-04-29 2024-05-31 四川泰瑞创通讯技术股份有限公司 Slow start circuit, current monitoring method and electronic equipment
CN118362857B (en) * 2024-06-17 2024-09-06 雪龙集团股份有限公司 Dynamic junction temperature measuring device based on SiC MOSFET threshold voltage

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
US2585121A (en) * 1950-05-29 1952-02-12 Remington Arms Co Inc Electrical conductivity testing apparatus
US4804903A (en) * 1983-11-03 1989-02-14 The Charles Stark Draper Laboratory, Inc. System for measuring load current in an electronically controlled switch
JPH0971532A (en) * 1995-09-06 1997-03-18 Otsuka Pharmaceut Co Ltd Carcinogenesis suppressing agent
US5804979A (en) * 1997-05-13 1998-09-08 Fluke Corporation Circuit for measuring in-circuit resistance and current
TW480759B (en) * 1999-03-18 2002-03-21 Seiko Epson Corp Electronic machine, charged electronic machine and control method of electronic machine
US6091223A (en) * 1999-08-11 2000-07-18 Electric Vehicle Infrastructure, Inc. Contactor monitor for charging stations
US6400163B1 (en) * 1999-09-08 2002-06-04 Rolf Melcher Circuit arrangement for monitoring an electronic switch controlling a load
TW512578B (en) 2000-03-21 2002-12-01 Int Rectifier Corp Inductor current synthesizer for switching power supplies
CN2600819Y (en) * 2002-09-22 2004-01-21 西安高压电器研究所 Device for measuring voltage and current of high-tension switch equipment
WO2005031955A1 (en) * 2003-09-25 2005-04-07 Koninklijke Philips Electronics N.V. A switch mode power supply
DE102007036837A1 (en) * 2007-08-02 2009-02-05 Siemens Ag Current measurement, at a low voltage switch, has a measurement resistance integrated into the current conductor with a measurement module on it
DE102007058314B4 (en) 2007-12-04 2018-11-15 Diehl Aerospace Gmbh Device for measuring a load current
FR2929408B1 (en) 2008-03-31 2010-04-09 St Microelectronics Tours Sas DETECTION OF THE STATE OF THE ELEMENTS OF AN ELECTRICAL BRANCH COMPRISING A LOAD AND A SWITCH
CN101860001B (en) 2010-05-06 2012-11-28 北京鼎汉技术股份有限公司 Switch power supply current detection circuit
US8344722B2 (en) * 2010-05-17 2013-01-01 Crest Semiconductors, Inc. Electric current measurement
CN103534600A (en) * 2011-03-29 2014-01-22 大陆-特韦斯贸易合伙股份公司及两合公司 Device for measuring a supply voltage in electric vehicles

Also Published As

Publication number Publication date
CN104704376A (en) 2015-06-10
US9664742B2 (en) 2017-05-30
US20150268303A1 (en) 2015-09-24
DE102012218773A1 (en) 2014-04-17
WO2014060330A1 (en) 2014-04-24
CN104704376B (en) 2019-07-26

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