Abstract: A method of starting a rotor of a single-phase claw-pole motor, wherein the claw-pole motor comprises a permanently excited rotor having a plurality of detent positions, wherein the rotor performs movement in a running direction in nominal operation, comprises an electronically commutated stator, and comprises a Hall sensor for determining relative rotor position is disclosed. The method comprises the steps of starting of the rotor by at least one commutation of a stator winding due to a Hall sensor signal and generating a plurality of commutations by means of pulse width modulated phase voltage based on a Hall sensor signal, wherein the Hall sensor is mounted on the stator or on an electronic circuit board and is arranged offset with respect to a center position of a stator pole in the direction of rotation.

Abstract: A method for starting up a rotor of a single-phase claw-pole motor, wherein the claw-pole motor comprises a permanently excited rotor which executes a movement in a running direction in nominal operation, an electronically commutated stator and a Hall sensor for determining the relative rotor position, wherein the method comprises the steps of generating a pulse for moving the rotor in the direction opposite to the running direction by energizing a stator winding on the basis of an inverted Hall sensor signal; and starting up the rotor for movement in the running direction by energizing a stator winding on the basis of a Hall sensor signal.