KR102704207B1 - 다중의 감도 범위들을 가지는 전류 센서 - Google Patents

다중의 감도 범위들을 가지는 전류 센서 Download PDF

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Publication number
KR102704207B1
KR102704207B1 KR1020217005860A KR20217005860A KR102704207B1 KR 102704207 B1 KR102704207 B1 KR 102704207B1 KR 1020217005860 A KR1020217005860 A KR 1020217005860A KR 20217005860 A KR20217005860 A KR 20217005860A KR 102704207 B1 KR102704207 B1 KR 102704207B1
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magnetic field
current
sensor device
signal
conductor
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KR20210044799A (ko
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노에미 벨린
숀 디. 밀라노
웨이드 버싱
클로드 페르몬
Original Assignee
알레그로 마이크로시스템스, 엘엘씨
꼼미사리아 아 레네르지 아또미끄 에 오 에네르지 알떼르나띠브스
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    • 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
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/205—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using magneto-resistance devices, e.g. field plates
    • 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
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/207—Constructional details independent of the type of device used
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/0017—Means for compensating offset magnetic fields or the magnetic flux to be measured; Means for generating calibration magnetic fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • G01R33/096—Magnetoresistive devices anisotropic magnetoresistance sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • G01R33/098—Magnetoresistive devices comprising tunnel junctions, e.g. tunnel magnetoresistance sensors
    • 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
    • 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
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/142—Arrangements for simultaneous measurements of several parameters employing techniques covered by groups G01R15/14 - G01R15/26
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/07—Hall effect devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measuring Magnetic Variables (AREA)
KR1020217005860A 2018-08-20 2019-07-23 다중의 감도 범위들을 가지는 전류 센서 Active KR102704207B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15/999,448 2018-08-20
US15/999,448 US10935612B2 (en) 2018-08-20 2018-08-20 Current sensor having multiple sensitivity ranges
PCT/US2019/042921 WO2020040921A1 (en) 2018-08-20 2019-07-23 Current sensor having multiple sensitivity ranges

Publications (2)

Publication Number Publication Date
KR20210044799A KR20210044799A (ko) 2021-04-23
KR102704207B1 true KR102704207B1 (ko) 2024-09-06

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KR1020217005860A Active KR102704207B1 (ko) 2018-08-20 2019-07-23 다중의 감도 범위들을 가지는 전류 센서

Country Status (5)

Country Link
US (1) US10935612B2 (https=)
EP (1) EP3821263B1 (https=)
JP (1) JP7434287B2 (https=)
KR (1) KR102704207B1 (https=)
WO (1) WO2020040921A1 (https=)

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WO2021102446A1 (en) * 2019-11-24 2021-05-27 Purdue Research Foundation High accuracy non-invasive current sensor system
US11561112B2 (en) 2020-03-13 2023-01-24 Allegro Microsystems, Llc Current sensor having stray field immunity
US11226382B2 (en) 2020-04-07 2022-01-18 Allegro Microsystems, Llc Current sensor system
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US11366141B1 (en) 2021-01-28 2022-06-21 Allegro Microsystems, Llc Multipath wide bandwidth current sensor
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US12352786B2 (en) 2021-09-07 2025-07-08 Allegro Microsystems, Llc Current sensor system
US11656250B2 (en) 2021-09-07 2023-05-23 Allegro Microsystems, Llc Current sensor system
US11892476B2 (en) 2022-02-15 2024-02-06 Allegro Microsystems, Llc Current sensor package
US12112865B2 (en) 2022-03-15 2024-10-08 Allegro Microsystems, Llc Multiple branch bus bar for coreless current sensing application
US11940470B2 (en) 2022-05-31 2024-03-26 Allegro Microsystems, Llc Current sensor system
US12306214B2 (en) 2022-12-15 2025-05-20 Infineon Technologies Ag Adjustable sensitivity ranges for magnetic field sensors
DE102022134015A1 (de) * 2022-12-20 2024-06-20 Sensitec Gmbh Stromsensoranordnung
EP4553507A3 (en) * 2022-12-28 2025-07-16 Melexis Technologies SA Current sensor for multiple currents
US12306223B2 (en) 2023-01-03 2025-05-20 Allegro Microsystems, Llc Sensor architecture for correcting thermally-induced linearity error
US12359904B2 (en) 2023-01-26 2025-07-15 Allegro Microsystems, Llc Method of manufacturing angle sensors including magnetoresistance elements including different types of antiferromagnetic materials
US12352832B2 (en) 2023-01-30 2025-07-08 Allegro Microsystems, Llc Reducing angle error in angle sensor due to orthogonality drift over magnetic-field
WO2025097093A1 (en) 2023-11-03 2025-05-08 Spindrift Innovations, LLC Differential dual sensor contactless magnetic-mode electrical current sensors with tamper detection
US12584947B2 (en) * 2023-11-03 2026-03-24 Spindrift Innovations, LLC Differential dual sensor contactless magnetic-mode electrical current sensors with tamper detection
US12510611B2 (en) 2023-11-07 2025-12-30 Allegro Microsystems, Llc TMR sensor having magnetic field generation for pillar stimulation
US12493057B2 (en) 2023-11-17 2025-12-09 Allegro Microsystems, Llc Current sensor integrated circuit
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