Ams Ag

Roland Einspieler

Christian Stockreiter

Marcel Urban

Guenter Kurmies

A position sensor comprises at least one magneto-sensitive element, a current source that is coupled to the at least one magneto-sensitive element and is configured to supply a source current to the at least one magneto-sensitive element, an analog-to-digital converter having an input coupled to the at least one magneto-sensitive element, a position calculation unit that is coupled to an output of the analog-to-digital converter and comprises a first output for providing a position signal, and a diagnostic unit that comprises an output coupled to the current source and is configured to provide a stimulus signal as a function of a stimulus pattern at the output of the diagnostic unit.

Position sensor and method for position sensing and diagnostic

A motor position sensor device comprises a motor position detection unit being configured to detect a position of a rotor of an electric motor. The motor position sensor device comprises a selection circuit being configured to couple a first supply terminal to provide a supply voltage to the motor position detection unit, if a level of the supply voltage is above the threshold level, and to couple a second supply terminal to provide an auxiliary supply voltage to the motor position detection unit, if the level of the supply voltage is below the threshold level and the level of the auxiliary supply voltage is above the threshold level.

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Graz, Austria

Roland Einspieler