Patent ID: 11914008
Assignee: TDK CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A magnetic sensor comprising:
a plurality of magnetoresistive effect elements (MR elements), which can detect an external magnetic field,
a plurality of soft magnetic body shields, and
a magnetic detection element circuit, which has a Wheatstone bridge circuit, wherein the plurality of MR elements are laminated on and/or under the plurality of soft magnetic body shields in a side view, respectively,
the size of each of the MR element is physically included within a perimeter of each of the soft magnetic body shields in a plan view,
the plurality of the MR elements is two-dimensionally arranged in an array,
the Wheatstone bridge circuit includes a first pair of magnetic detection elements in which a first magnetic detection element unit and a second magnetic detection element unit are connected in series, and a second pair of magnetic detection elements, in which a third magnetic detection element unit and a fourth magnetic detection element unit are connected in series, and
the first through fourth magnetic detection element units have the plurality of MR elements, respectively.