Title:
SHIELD STRUCTURE OF CURRENT SENSOR
Document Type and Number:
Japanese Patent JP2005049185
Kind Code:
A
Abstract:
To realize a shield structure capable of shielding from both the outside noise and neighboring noise at low cost.
The current sensor is composed of a magnetic impedance element, detection circuit, and an operation circuit, wherein the current sensors 14a, 14b, and 14c provided on the printed circuit board 25 corresponding to the number of the electric conductors 22a, 22b, and 22c are held between the magnetic shield plates 31, and 32. On the magnetic shield plate 32 facing to the electric conductors 22a, 22b, and 22c, holes 33a, 33b, and 33c for detecting magnetic fields are provided. Therefore, the number of parts for the shields are reduced, and the low cost can be attained.
Inventors:
MATSUZOE YUJI
Application Number:
JP2003280562A
Publication Date:
February 24, 2005
Filing Date:
July 28, 2003
Export Citation:
Assignee:
FUJI ELECTRIC HOLDINGS
International Classes:
G01R33/02; G01R15/20; (IPC1-7): G01R15/20; G01R33/02
Attorney, Agent or Firm:
Iwao Yamaguchi
Yoshihide Komada
Kiyoshi Matsuzaki
Yoshihide Komada
Kiyoshi Matsuzaki
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