MOTOR POSITION SENSOR DEVICE

摘要

A motor position sensor device (1000) comprises a motor position detection unit (1010) being configured to detect a position of a rotor (1110) of an electric motor (1100). The motor positon sensor device (1000) comprises a selection circuit (1020) being configured to couple a first supply terminal (VIOOOa) to provide a supply voltage (VDD) to the motor position detection unit (1010), if a level of the supply voltage (VDD) is above the threshold level, and to couple a second supply terminal (VIOOOb) to provide an auxiliary supply voltage (VDDN) to the motor position detection unit (1010), if the level of the supply voltage (VDD) is below the threshold level and the level of the auxiliary supply voltage (VDDN) is above the threshold level.