JP7803433B2 - 電流センサ - Google Patents

電流センサ

Info

Publication number
JP7803433B2
JP7803433B2 JP2024554431A JP2024554431A JP7803433B2 JP 7803433 B2 JP7803433 B2 JP 7803433B2 JP 2024554431 A JP2024554431 A JP 2024554431A JP 2024554431 A JP2024554431 A JP 2024554431A JP 7803433 B2 JP7803433 B2 JP 7803433B2
Authority
JP
Japan
Prior art keywords
magnetic field
amplifier
bus bar
detection
detection element
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
Application number
JP2024554431A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2024095857A1 (https=
JPWO2024095857A5 (https=
Inventor
辰樹 前多
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of JPWO2024095857A1 publication Critical patent/JPWO2024095857A1/ja
Publication of JPWO2024095857A5 publication Critical patent/JPWO2024095857A5/ja
Application granted granted Critical
Publication of JP7803433B2 publication Critical patent/JP7803433B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G01R15/14—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
    • 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
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • 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—Measuring current only
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
JP2024554431A 2022-11-04 2023-10-25 電流センサ Active JP7803433B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022177295 2022-11-04
JP2022177295 2022-11-04
PCT/JP2023/038479 WO2024095857A1 (ja) 2022-11-04 2023-10-25 電流センサ

Publications (3)

Publication Number Publication Date
JPWO2024095857A1 JPWO2024095857A1 (https=) 2024-05-10
JPWO2024095857A5 JPWO2024095857A5 (https=) 2025-05-22
JP7803433B2 true JP7803433B2 (ja) 2026-01-21

Family

ID=90930394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024554431A Active JP7803433B2 (ja) 2022-11-04 2023-10-25 電流センサ

Country Status (3)

Country Link
US (1) US20250224428A1 (https=)
JP (1) JP7803433B2 (https=)
WO (1) WO2024095857A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005195427A (ja) 2004-01-06 2005-07-21 Asahi Kasei Electronics Co Ltd 電流測定装置、電流測定方法および電流測定プログラム
JP2008298761A (ja) 2007-06-04 2008-12-11 Koshin Denki Kk 電流センサ
JP2012026727A (ja) 2010-07-19 2012-02-09 Denso Corp 電流センサ
WO2023053792A1 (ja) 2021-09-29 2023-04-06 株式会社村田製作所 電流センサ、その補正方法、および、複数の電流センサの補正方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04296663A (ja) * 1991-03-27 1992-10-21 Osaka Gas Co Ltd 電流測定装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005195427A (ja) 2004-01-06 2005-07-21 Asahi Kasei Electronics Co Ltd 電流測定装置、電流測定方法および電流測定プログラム
JP2008298761A (ja) 2007-06-04 2008-12-11 Koshin Denki Kk 電流センサ
JP2012026727A (ja) 2010-07-19 2012-02-09 Denso Corp 電流センサ
WO2023053792A1 (ja) 2021-09-29 2023-04-06 株式会社村田製作所 電流センサ、その補正方法、および、複数の電流センサの補正方法

Also Published As

Publication number Publication date
US20250224428A1 (en) 2025-07-10
JPWO2024095857A1 (https=) 2024-05-10
WO2024095857A1 (ja) 2024-05-10

Similar Documents

Publication Publication Date Title
JP5362115B2 (ja) 磁界センサ
US11099218B2 (en) Current sensor
CN112485495B (zh) 电流传感器
US10498198B2 (en) Magnetic sensor
US20240219428A1 (en) Current sensor, method of correcting the same, and method of correcting a plurality of current sensors
JP5688572B2 (ja) 電流センサ
JP2006184269A (ja) 電流センサ
JPWO2014203862A1 (ja) 電流センサ
JP6566188B2 (ja) 電流センサ
JP7803433B2 (ja) 電流センサ
JP5504483B2 (ja) 電流センサ
JP7306220B2 (ja) 電流センサ
EP4394393B1 (en) Current sensing with crosstalk immunuity
US6861717B2 (en) Device for defecting a magnetic field, magnetic field measure and current meter
WO2024257579A1 (ja) 電流センサ
JP7819810B2 (ja) 電流センサ
CN114062755B (zh) 电流传感器
JP7703772B2 (ja) 電流センサ、及び電流検出方法
JPWO2023167096A5 (https=)
CN117990969A (zh) 用于电流测量的装置和方法
JPWO2024095857A5 (https=)
CN117572303A (zh) 一种磁传感器、电流检测装置及电流检测方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20250310

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20250310

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20251111

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20251127

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20251209

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20251222

R150 Certificate of patent or registration of utility model

Ref document number: 7803433

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150