Electrical resistors – Resistance value responsive to a condition – Magnetic field or compass
Reexamination Certificate
2005-10-19
2009-02-24
Lee, Kyung (Department: 2832)
Electrical resistors
Resistance value responsive to a condition
Magnetic field or compass
C324S252000, C324S207210
Reexamination Certificate
active
07495541
ABSTRACT:
The present invention provides a current sensor capable of sensing a current to be detected with high precision. The current sensor includes a bus line which extends in an X direction at a first level and to which a current to be detected is supplied, a first magnetoresistive element extending in the X direction in a region corresponding to the bus line at a second level, and a second magnetoresistive element extending in the X direction in a region corresponding to the bus line at a third level. The resistance value of the first magnetoresistive element and that of the second magnetoresistive element change in directions opposite to the second level in accordance with a current magnetic field generated by the current to be detected. With the configuration, the first and second magnetoresistive elements and the bus line can be disposed close to each other. While realizing compactness, the current magnetic field can be detected with high sensitivity.
REFERENCES:
patent: 5422571 (1995-06-01), Gurney et al.
patent: 5432373 (1995-07-01), Johnson
patent: 5621377 (1997-04-01), Dettmann et al.
patent: 6667682 (2003-12-01), Wan et al.
patent: U-5-4038 (1993-01-01), None
patent: A-5-126865 (1993-05-01), None
patent: A-6-222082 (1994-08-01), None
patent: A-10-506193 (1998-06-01), None
Lee Kyung
Oliff & Berridg,e PLC
TDK Corporation
LandOfFree
Current sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Current sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4113026