Magnetic sensor including bridge circuit having fixed...

Details Magnetic sensor including bridge circuit having fixed... Magnetic sensor including bridge circuit having fixed...

2007-02-26

2008-12-09

Whittington, Kenneth J (Department: 2862)

Electricity: measuring and testing

Magnetic

Magnetometers

C324S207210

Reexamination Certificate

active

07463026

ABSTRACT:
A magnetic sensor uses a magnetoresistance element which can be driven in a stable manner with a dipole irrespective of a polarity of an external magnetic field. A resistance value R of first magnetoresistance elements varies, and a resistance value of second magnetoresistance elements does not vary with a variation in magnetic field magnitude of the external magnetic field H1in the positive direction. A resistance value R of second magnetoresistance elements varies and a resistance value of first magnetoresistance elements does not vary with a variation in magnetic field magnitude of the external magnetic field H2in the negative direction. Accordingly, the magnetic sensor can be driven in a stable manner with a dipole irrespective of the polarity of the external magnetic field.

REFERENCES:
patent: 7023310 (2006-04-01), Oohashi et al.
patent: 2008/0054888 (2008-03-01), Ando et al.
patent: 8-17311 (1996-01-01), None
patent: 2003-60256 (2003-02-01), None

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