Patent ID: 6437529
Filing Date: 2002-08-20
Classification: H02K

Abstract:
A DC electric motor comprising:a rotor that rotates through a plurality of rotational positions; a first stator having first stator circuitry and a first winding, the first stator circuitry energizing the first winding in response to the rotational position of the rotor, the first winding being distributed about the first stator; and a second stator having second stator circuitry and a second winding, the second stator circuitry energizing the second winding in response to the rotational position of the rotor, the second winding being distributed about the second stator; the operation of the first stator circuitry being configured to energize the first winding when the second stator circuitry fails to energize the second winding, the first stator circuitry being self-controlling, the first stator and second stator being stacked.