Title:
磁場検出装置および電流検出装置
Document Type and Number:
Japanese Patent JP7327597
Kind Code:
B2
Abstract:
To provide a magnetic field detection device capable of exhibiting high detection accuracy even though size is smaller.SOLUTION: A magnetic field detection device comprises: a magneto-resistance effect element; and a coil including a first layer portion and a second layer portion facing each other so as to sandwich the magneto-resistance effect element in a first axial direction and capable of forming an induced magnetic field applied in a second axis direction to the magneto-resistance effect element by supplying current. The first layer portion includes a plurality of first conductors extended respectively in a third axial direction, arranged in the second axial direction and connected in parallel to each other. The second layer portion includes one second conductor extended in the third direction or a plurality of second conductors extended respectively in the third axial direction, arranged in the second axial direction and connected in parallel to each other. Width of the first conductor is smaller than width of the second conductor.SELECTED DRAWING: Figure 3A
Inventors:
Naofumi Kobayashi
Norikazu Ohta
Kenzo Makino
Norikazu Ohta
Kenzo Makino
Application Number:
JP2022112307A
Publication Date:
August 16, 2023
Filing Date:
July 13, 2022
Export Citation:
Assignee:
TDK Corporation
International Classes:
G01R15/20; G01R33/09; G01R19/00
Domestic Patent References:
| JP2017181403A | ||||
| JP2016510116A | ||||
| JP2008111801A | ||||
| JP2021124289A | ||||
| JP202192527A | ||||
| JP202192526A |
Foreign References:
| WO2023129276A1 | ||||
| US20120025819 |
Attorney, Agent or Firm:
Patent Attorney Corporation Tsubasa International Patent Office