CN103558445B - 电流检测电路以及测量装置 - Google Patents
电流检测电路以及测量装置 Download PDFInfo
- Publication number
- CN103558445B CN103558445B CN201310571254.4A CN201310571254A CN103558445B CN 103558445 B CN103558445 B CN 103558445B CN 201310571254 A CN201310571254 A CN 201310571254A CN 103558445 B CN103558445 B CN 103558445B
- Authority
- CN
- China
- Prior art keywords
- current
- input
- detection circuit
- output
- node
- 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.)
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Classifications
-
- 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
- G01R19/0023—Measuring currents or voltages from sources with high internal resistance by means of measuring circuits with high input impedance, e.g. OP-amplifiers
-
- 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
-
- 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
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06766—Input circuits therefor
-
- 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
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
Description
Claims (13)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310571254.4A CN103558445B (zh) | 2013-11-13 | 2013-11-13 | 电流检测电路以及测量装置 |
US14/539,192 US9423430B2 (en) | 2013-11-13 | 2014-11-12 | Active current measurement circuit and measurement device |
EP14193047.9A EP2873979B1 (en) | 2013-11-13 | 2014-11-13 | Active current sensing circuit and measurement device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310571254.4A CN103558445B (zh) | 2013-11-13 | 2013-11-13 | 电流检测电路以及测量装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103558445A CN103558445A (zh) | 2014-02-05 |
CN103558445B true CN103558445B (zh) | 2019-05-21 |
Family
ID=50012747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310571254.4A Active CN103558445B (zh) | 2013-11-13 | 2013-11-13 | 电流检测电路以及测量装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9423430B2 (zh) |
EP (1) | EP2873979B1 (zh) |
CN (1) | CN103558445B (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104977450B (zh) * | 2014-04-03 | 2019-04-30 | 深圳市中兴微电子技术有限公司 | 一种电流采样电路及方法 |
CN108107242A (zh) * | 2017-12-28 | 2018-06-01 | 优利德科技(中国)有限公司 | 一种表笔报警装置 |
CN108896818A (zh) * | 2018-07-18 | 2018-11-27 | 广东思诺伟智能技术有限公司 | 一种利用保险丝实现电流检测的方法 |
CN111026211A (zh) * | 2018-10-09 | 2020-04-17 | 西安智盛锐芯半导体科技有限公司 | 一种用于将电流转换为电压的转换电路 |
DE102019108192A1 (de) * | 2019-03-29 | 2020-10-01 | Inficon Gmbh | Verstärkervorrichtung zur Verstärkung kleiner Ströme |
CN111579821A (zh) * | 2020-05-15 | 2020-08-25 | 国网山东省电力公司宁阳县供电公司 | 一种便携式跳闸短接器 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4771233A (en) | 1987-01-29 | 1988-09-13 | Wayne Martin J | Printed curcuit board lead ammeter |
US6894477B1 (en) * | 2003-03-04 | 2005-05-17 | Fazaki North America, Inc. | Electrical current monitor |
US7015680B2 (en) * | 2004-06-10 | 2006-03-21 | Micrel, Incorporated | Current-limiting circuitry |
US7548708B2 (en) * | 2005-04-01 | 2009-06-16 | Canon Kabushiki Kaisha | Power supply unit in image forming apparatus |
DE102007030172A1 (de) * | 2007-06-27 | 2009-01-15 | Forschungszentrum Jülich GmbH | Strommessgerät mit hoher Dynamik und kleiner Zeitkonstante |
US7990162B2 (en) * | 2007-08-14 | 2011-08-02 | Fluke Corporation | Systems and methods for an open circuit current limiter |
US8269482B2 (en) | 2007-09-19 | 2012-09-18 | Electro Industries/Gauge Tech | Intelligent electronic device having circuitry for reducing the burden on current transformers |
US7898299B2 (en) * | 2008-09-25 | 2011-03-01 | Cypress Semiconductor Corporation | Current sense amplifier |
US20100194522A1 (en) * | 2010-03-29 | 2010-08-05 | Jlj. Inc. | Resettable fuse with temperature compensation |
WO2012005042A1 (ja) * | 2010-07-07 | 2012-01-12 | アルプス・グリーンデバイス株式会社 | 電流センサ |
JP2012083850A (ja) * | 2010-10-07 | 2012-04-26 | On Semiconductor Trading Ltd | 定電圧電源回路 |
CN202057719U (zh) * | 2011-03-29 | 2011-11-30 | 上海安泊易电子科技有限公司 | 一种高边电流检测*** |
-
2013
- 2013-11-13 CN CN201310571254.4A patent/CN103558445B/zh active Active
-
2014
- 2014-11-12 US US14/539,192 patent/US9423430B2/en active Active
- 2014-11-13 EP EP14193047.9A patent/EP2873979B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20150130484A1 (en) | 2015-05-14 |
EP2873979B1 (en) | 2019-08-07 |
EP2873979A1 (en) | 2015-05-20 |
CN103558445A (zh) | 2014-02-05 |
US9423430B2 (en) | 2016-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20160426 Address after: 200237 No. 2638, Lane 139, Hongmei South Road, Shanghai, Minhang District Applicant after: Shanghai Shilu Instrument Co., Ltd. Address before: 200335, building 6, building 4, 280 Lane Road, Changning District, Shanghai Applicant before: Danaher (Shanghai) Industrial Instruments Technology Research and Development Co., Ltd. |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20160909 Address after: Norfolk Applicant after: Fluke precision measurement Co. Ltd. Address before: 200237 No. 2638, Lane 139, Hongmei South Road, Shanghai, Minhang District Applicant before: Shanghai Shilu Instrument Co., Ltd. |
|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |