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Title:
MAGNETIC SENSOR AND MAGNETIC DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/244735
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to improve the accuracy of detecting the orientation of a magnetic field which is applied to a magnetic sensor. A magnetic sensor (100) comprises: a first half-bridge circuit (H1); a second half-bridge circuit (H2); and a holding member. The first half-bridge circuit (H1) includes: a first magnetoresistive effect element (Mr1); and a second magnetoresistive effect element (Mr2). The second half-bridge circuit (H2) includes: a third magnetoresistive effect element; and a fourth magnetoresistive effect element. The first magnetoresistive effect element (Mr1) detects a magnetic field extending along an X-axis. The second magnetoresistive effect element (Mr2) detects a magnetic field extending along a Y-axis. The third magnetoresistive effect element detects a magnetic field extending along a first axis (V-axis). The fourth magnetoresistive effect element detects the magnetic field extending along a second axis (W-axis).

Inventors:
ONAKA KAZUHIRO
KOHARA NAOKI
Application Number:
PCT/JP2022/020402
Publication Date:
November 24, 2022
Filing Date:
May 16, 2022
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01L43/02; G01R33/09; H01L43/08
Foreign References:
JP2020144033A2020-09-10
JP2016186476A2016-10-27
JP2018107280A2018-07-05
JP2019158535A2019-09-19
JP2019039871A2019-03-14
JPH11195824A1999-07-21
JP2000121386A2000-04-28
JP2020106425A2020-07-09
JP2013195346A2013-09-30
JP2008101953A2008-05-01
US20190018082A12019-01-17
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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