Magnetic field sensor with double wheatstone bridge having magne

Details Magnetic field sensor with double wheatstone bridge having magne Magnetic field sensor with double wheatstone bridge having magne

1998-06-11

2000-08-08

Patidar, Jay

Electricity: measuring and testing

Magnetic

Magnetometers

338 32R, 32420712, G01R 3309, H01L 4302

Patent

active

061006866

ABSTRACT:
A magnetic field sensor has a substrate on which a plurality of resistive elements form a double Wheatstone bridge circuit, at least one of the resistive elements in each bridge having a magneto-resistive characteristic. The two bridges are identical except in that, if a given magneto-resistive element in a given branch in one bridge has a positive output polarity, then the corresponding magneto-resistive element in the same branch in the other bridge will have a negative output polarity. By adding the output signals of the two Wheatstone bridges a zero-point offset of the sensor can be determined and eliminated. There is no need to employ the so-called flipping technique employed for that purpose in conventional sensors, which requires increased power consumption.

REFERENCES:
patent: 4673827 (1987-06-01), Sommer
"Semiconductor Sensors", Philips Semiconductors Data Handbook SC17, pp. 33-38, Nov. 1994.

Affiliated with

Also associated with

Rating

Magnetic field sensor with double wheatstone bridge having magne does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic field sensor with double wheatstone bridge having magne, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic field sensor with double wheatstone bridge having magne will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1153387