Patent ID: 8450963
Filing Date: 2013-05-28
Classification: H02P

Abstract:
1. A motor comprising: a rotor; a stator extending around at least a portion of the rotor and separated from the rotor by an air gap; a first stator winding; a second stator winding; a third stator winding, wherein the first stator winding, the second stator winding, and the third stator winding are mounted to the stator to generate square waves; a drive circuit configured to provide a current to the first stator winding, the second stator winding, and the third stator winding, wherein the current includes an alternating current (AC) component and a direct current (DC) component; a first rotor winding mounted to the rotor to form a plurality of third harmonic coils; a second rotor winding mounted to the rotor, wherein, when generated, the generated square waves induce a voltage in the first rotor winding that is applied to the second rotor winding; and a diode bridge mounted to the rotor to rectify the voltage induced in the first rotor winding and to apply the resulting DC voltage to the second rotor winding.