Title:
MAGNETIC SENSOR
Document Type and Number:
Japanese Patent JP3404249
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve productivity, to reduce a production cost, and at the same time to minimize a sensor by providing a filtering circuit for eliminating noise that invades a circuit for processing a signal being outputted from a magnetic detection part.
SOLUTION: A magnetic detection part where a bridge circuit is constituted of detection resistors R1; R2, R3, and R4 consisting of a huge magnetic resistance element(GMR element) is connected to a processing circuit 27 containing a differential amplification circuit and a comparison circuit via a first wiring 60. The processing circuit 27 is electrically connected to a power-supply-side resistor R5 and an output-side resistor R6 via a second wiring 61. Also, the power-supply-side resistor R5 is connected a power-supply-side capacitor C1 via a third wiring 62 and also the output-side resistor R6 is connected to an output-side capacitor C2 via a fourth wiring 63. Then, a first filtering circuit is constituted of the power-supply-side resistor R5 and the power-supply-side capacitor C1 and a second filtering circuit is constituted of the output-side resistor R6 and the output-side capacitor C2.
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Inventors:
Izuru Shinjo
Yasuyoshi Hatazawa
Yasuyoshi Hatazawa
Application Number:
JP7405697A
Publication Date:
May 06, 2003
Filing Date:
March 26, 1997
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01D5/18; G01D5/245; G01P3/487; G01P3/488; G01R33/02; G01R33/09; (IPC1-7): G01R33/02; G01D5/18; G01R33/09
Domestic Patent References:
| JP7198736A | ||||
| JP310180A | ||||
| JP4216482A | ||||
| JP59173351U |
Attorney, Agent or Firm:
Mitsuteru Soga (4 outside)