Control module for use as e.g. switch of washing machine, has actuator unit comprising actuator part held relative to other actuator part, where actuator current realizes sensorless determination of position of actuator unit at holding unit

摘要

The module (4) has an actuator unit (5) comprising an actuator part movably held relative to another actuator part. Actuator current exhibits actuator current component and another actuator current component overlaid to the former actuator current component for realization of a sensorless determination of a position of the actuator unit at a holding unit (6) e.g. electromagnet actuator (7). The former actuator current component is designed as a direct current component and the latter actuator current component is designed as an alternating current (AC) component. The AC component is designed as harmonic or rectangular or saw teeth-like AC component.