Patent ID: 7411363
Filing Date: 2008-08-12
Classification: H02K,H02M,Y02B

Abstract:
1. An apparatus for efficient conversion of electrical energy from an electric power source to mechanical power, the apparatus comprising: an electromechanical device that is arranged to provide the mechanical power in response to the electrical energy from the electric power source; an inductor circuit that has a first associated reactance, wherein the inductor circuit is comprised of at least one winding in the electromechanical device; a capacitor circuit that is coupled in series with at least one winding from the inductor circuit, wherein the capacitor circuit has a second associated reactance, wherein the inductor circuit and the capacitor circuit have a resonance that occurs at a particular frequency when the first reactance is matched to the second reactance; and a component circuit that is coupled in parallel with the capacitor circuit, wherein the component circuit, the capacitor circuit, and the at least one winding from the inductor circuit are arranged in cooperation as a tank circuit that has a second resonance that occurs at a particular frequency such that electrical energy oscillates between a magnetic field of the inductor circuit and an electric field associated with the capacitor circuit and the component circuit.