FR2983300B1 - SYSTEM FOR MEASURING CHARGE CURRENT AND DIAGNOSIS OF ABSENCE OF LOAD OR OVERLOAD - Google Patents
SYSTEM FOR MEASURING CHARGE CURRENT AND DIAGNOSIS OF ABSENCE OF LOAD OR OVERLOADInfo
- Publication number
- FR2983300B1 FR2983300B1 FR1103646A FR1103646A FR2983300B1 FR 2983300 B1 FR2983300 B1 FR 2983300B1 FR 1103646 A FR1103646 A FR 1103646A FR 1103646 A FR1103646 A FR 1103646A FR 2983300 B1 FR2983300 B1 FR 2983300B1
- Authority
- FR
- France
- Prior art keywords
- resistor
- load
- overload
- absence
- diagnosis
- 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.)
- Active
Links
- 238000003745 diagnosis Methods 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
Classifications
-
- 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
-
- 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
- G01R19/16504—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 components employed
- G01R19/16519—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 components employed using FET's
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
- H03K17/0822—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in field-effect transistor switches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/0027—Measuring means of, e.g. currents through or voltages across the switch
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
- Electronic Switches (AREA)
Abstract
The present invention relates to a system for measuring a load current and for diagnosing an absence of load or an overload, comprising an intelligent power switch (1) able to deliver a measurement (Is) of the load current on a current output, means for converting the measured load current into a voltage value (Vs) and a microcontroller (2) able to deliver orders to said intelligent power switch which are dependent on said voltage value (Vs). In accordance with the invention, the means for conversion comprise a first resistor (3) and a second resistor (4) which are connected in series between said current output and a reference potential, and the system furthermore comprises a control circuit (5, 6) able to compare the voltage tapped off across the terminals of said first resistor (3) and second resistor (4) connected in series with a predetermined threshold value (Vt) and to automatically short-circuit the first (3) or the second (4) resistor when the voltage tapped off is greater than said threshold value (Vt).
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1103646A FR2983300B1 (en) | 2011-11-30 | 2011-11-30 | SYSTEM FOR MEASURING CHARGE CURRENT AND DIAGNOSIS OF ABSENCE OF LOAD OR OVERLOAD |
PCT/EP2012/074138 WO2013079686A1 (en) | 2011-11-30 | 2012-11-30 | System for measuring a load current and for diagnosing an absence of load or an overload |
CN201811201562.7A CN109683012B (en) | 2011-11-30 | 2012-11-30 | System for measuring load current and for diagnosing no-load or overload |
EP12809639.3A EP2786158A1 (en) | 2011-11-30 | 2012-11-30 | System for measuring a load current and for diagnosing an absence of load or an overload |
CN201280058687.3A CN103959074A (en) | 2011-11-30 | 2012-11-30 | System for measuring a load current and for diagnosing an absence of load or an overload |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1103646A FR2983300B1 (en) | 2011-11-30 | 2011-11-30 | SYSTEM FOR MEASURING CHARGE CURRENT AND DIAGNOSIS OF ABSENCE OF LOAD OR OVERLOAD |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2983300A1 FR2983300A1 (en) | 2013-05-31 |
FR2983300B1 true FR2983300B1 (en) | 2014-01-10 |
Family
ID=47501093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1103646A Active FR2983300B1 (en) | 2011-11-30 | 2011-11-30 | SYSTEM FOR MEASURING CHARGE CURRENT AND DIAGNOSIS OF ABSENCE OF LOAD OR OVERLOAD |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2786158A1 (en) |
CN (2) | CN103959074A (en) |
FR (1) | FR2983300B1 (en) |
WO (1) | WO2013079686A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104459263A (en) * | 2014-12-05 | 2015-03-25 | 深圳市创荣发电子有限公司 | Pointer ampere meter capable of automatically shifting gears |
KR101725671B1 (en) * | 2015-01-12 | 2017-04-11 | 주식회사 엘지화학 | Overvoltage protection circuit, controlling method of the same and battery pack |
CN105242190B (en) * | 2015-10-19 | 2018-11-27 | 矽力杰半导体技术(杭州)有限公司 | Current detection circuit |
KR102511224B1 (en) * | 2015-11-05 | 2023-03-17 | 삼성전자주식회사 | Fuel Gauge System for Measuring Amount of Current of Battery and Portable Electronic Device Including the Same |
DE102016101352A1 (en) * | 2016-01-26 | 2017-07-27 | Bag Electronics Gmbh | Arrangement and method for operating a light bulb |
DE102016220030A1 (en) | 2016-10-14 | 2018-04-19 | Robert Bosch Gmbh | Method for detecting a short circuit via a load |
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 |
GB2614280B (en) * | 2021-12-23 | 2024-06-05 | Synaptec Ltd | Signal conditioning stage |
CN117368798A (en) * | 2023-12-04 | 2024-01-09 | 浙江国利信安科技有限公司 | Fault detection circuit and related circuitry |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5563541A (en) * | 1994-05-19 | 1996-10-08 | Sony/Tektronix Corporation | Load current detection circuit |
US5631794A (en) * | 1994-10-03 | 1997-05-20 | Yang; Tai-Her | Differential shunt-type protection circuit |
JP2000253570A (en) * | 1999-02-26 | 2000-09-14 | Yazaki Corp | Control system for motor electromotive force in electric vehicles |
JP2002040059A (en) * | 2000-07-24 | 2002-02-06 | Sony Corp | Current detector and control method thereof |
DE10351873B4 (en) * | 2003-11-06 | 2012-07-26 | Pilz Gmbh & Co. Kg | Device and method for fail-safe switching off an inductive load |
JP4158754B2 (en) * | 2004-09-30 | 2008-10-01 | 日産自動車株式会社 | Overcurrent detection method and detection circuit |
US7276893B2 (en) * | 2005-02-28 | 2007-10-02 | Keithley Instruments, Inc. | Automatic ranging current shunt |
US7365559B2 (en) * | 2005-05-03 | 2008-04-29 | Potentia Semiconductor Inc. | Current sensing for power MOSFETs |
GB2428301B (en) * | 2005-07-13 | 2008-02-13 | A D Developments Ltd | Current measurement apparatus |
-
2011
- 2011-11-30 FR FR1103646A patent/FR2983300B1/en active Active
-
2012
- 2012-11-30 CN CN201280058687.3A patent/CN103959074A/en active Pending
- 2012-11-30 CN CN201811201562.7A patent/CN109683012B/en active Active
- 2012-11-30 EP EP12809639.3A patent/EP2786158A1/en not_active Withdrawn
- 2012-11-30 WO PCT/EP2012/074138 patent/WO2013079686A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2983300A1 (en) | 2013-05-31 |
EP2786158A1 (en) | 2014-10-08 |
CN109683012A (en) | 2019-04-26 |
CN103959074A (en) | 2014-07-30 |
WO2013079686A1 (en) | 2013-06-06 |
CN109683012B (en) | 2022-03-22 |
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