Patent ID: 9632150
Date: 2017-04-25
CPC Classifications: G01R

Claim:
1. A magnetic field sensor, comprising: a plurality of magnetoresistance sense elements coupled together as a first circuit to sense a magnetic field, wherein the first circuit is configured to produce a linear output when the first circuit senses a magnetic field having a magnitude less than a first sense threshold of the magnetic field sensor, wherein each magnetoresistance sense element comprises: and a second circuit comprising a first plurality of current lines, wherein each current line of the first plurality of current lines is adjacent to a corresponding magnetoresistance sense element of the plurality of magnetoresistance sense elements, wherein, when energized, at least one current line of the first plurality of current lines is configured to generate a second magnetic field opposing the magnetic field sensed by the first circuit, and wherein, in the presence of the second magnetic field, the magnetic field sensor is configured to produce a linear output when the first circuit senses a magnetic field having a magnitude greater than the first sense threshold of magnetic field sensor.