Title:
【発明の名称】電流検出装置
Document Type and Number:
Japanese Patent JP2526815
Kind Code:
B2
Abstract:
PURPOSE:To make a stable detection in the manner of eliminating the effect of a noise current by winding up the detection wires for source and sink sides to a magnetic body so that the magnetic fluxes with the same direction and magnitude are produced. CONSTITUTION:The source side 4a and the sink side 4b of the current detection wires wherein the current is made to flow mutually between a load driving circuit 5 and load 6, are wound up respectively to an annular magnetic body 1 so that the magnetic fluxes with the same direction and magnitude are produced. With this arrangement, the fluxes produced by the noise currents are mutually compensated, and the fluxes produced by the load currents made to flow at the source and sink sides are mutually added and detected as a voltage by a Hall element 3 of a magnetoelectric conversion element, then the stable detection for the current is performed by eliminating the effect of the noise current.
Inventors:
Yuasa Shin
Application Number:
JP29858588A
Publication Date:
August 21, 1996
Filing Date:
November 25, 1988
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
G01R19/15; G01R15/20; H01L43/02; (IPC1-7): G01R19/15; G01R15/20
Domestic Patent References:
| JP5568068U |
Attorney, Agent or Firm:
Toshihiko Watanabe