Minimum magnetic field detection systems and methods in magnetoresistive sensors

Abstract

Embodiments relate to magnetoresistive sensors suitable for both angle and field strength sensing. A sensor can comprise two magnetoresistive (xMR) sensor components for sensing two different aspects/characteristics of a magnetic field. The first xMR sensor component can be configured for magnetic field angle or rotation sensing, while the second xMR sensor component is configured for magnetic field strength sensing. The second xMR sensor component can be configured for magnetic field strength sensing in two dimensions. In an embodiment, the second xMR sensor can be sensitive to lower magnetic fields, while the first xMR sensor can be sensitive to relatively higher magnetic fields. In an exemplary operation, the second xMR sensor can determine whether the field sensed with respect to angle or rotation by the first xMR sensor component is of sufficient strength to increase the accuracy of the angle or rotation of the field sensed by the first xMR sensor.

Dependencies are inferred from the claim text.