Patent ID: 6864648

Claim:
A motor, comprising: a stator containing a first winding and a second winding driven by an alternating current; a rotor arranged to rotate relative to the stator, the rotor containing a third winding and a fourth winding, the rotor generating a magnetic field having an amplitude and a phase angle relative to the alternating current; a first circuit in communication with the third and fourth windings for controlling the phase angle of the generated magnetic field and generating a rotating stator magnetic field that is in phase-lock with the alternating current; a second circuit in communication with and driving the first and second windings for controlling the rotational speed of the rotating stator magnetic field; a third circuit in communication with the third and fourth windings for controlling the magnitude of the generated magnetic field; a fourth circuit for controlling the magnitude of the rotating stator magnetic field; and a generator connected to the rotor for generating power for operating the circuit.