Electrical tuning circuit arrangement for a measurement bridge, especially a Wheatstone's bridge, has at least a current source for generating a compensation current

摘要

Circuit arrangement for electrical tuning of a measurement bridge (10), especially a Wheatstone's bridge has at least a compensation current (IB) generating current source (24, 26). The invention also relates to a corresponding magnetic field sensor with a measurement bridge, where one of the arms is formed by a magnetoresistive sensor and an inventive circuit is used to tune the sensor switching point.