Title:
MAGNETIC SENSOR AND MAGNETIC DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/244734
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to improve the accuracy of detection of the direction of a magnetic field applied to a magnetic sensor. A magnetic sensor (100) includes at least one bias magnet (5), a first half-bridge circuit (1), a second half-bridge circuit (2), and a substrate. The first half-bridge circuit (1) has a pair of first magneto-resistive sensors (1P, 1Q) to one of which a bias magnetic field in the positive direction of the X axis is applied, and to the other of which a bias magnetic field in the negative direction of the X axis is applied. The second half-bridge circuit (2) has a pair of second magneto-resistive sensors (2P, 2Q) to one of which a bias magnetic field in the positive direction of the Y axis is applied, and to the other of which a bias magnetic field in the negative direction of the Y axis is applied.
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Inventors:
TSUSHIMA TAKAFUMI
ONAKA KAZUHIRO
ONAKA KAZUHIRO
Application Number:
PCT/JP2022/020401
Publication Date:
November 24, 2022
Filing Date:
May 16, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01L43/02; G01R33/09; H01L43/08
Domestic Patent References:
| WO2016080470A1 | 2016-05-26 |
Foreign References:
| JP2012037463A | 2012-02-23 | |||
| JP2018179776A | 2018-11-15 | |||
| JP2002303536A | 2002-10-18 | |||
| JP2016186476A | 2016-10-27 | |||
| JP2018107280A | 2018-07-05 | |||
| US20120319221A1 | 2012-12-20 | |||
| JP2014153054A | 2014-08-25 | |||
| JP2014149268A | 2014-08-21 | |||
| US20180238711A1 | 2018-08-23 | |||
| US20200041310A1 | 2020-02-06 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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