Patent ID: 6013963
Filing Date: 2000-01-11
Classification: H02K

Abstract:
An electro-mechanical energy conversion device comprising:a stator comprising a first coil of a first magnetic polarity mounted on a first side of the stator and a second coil of an opposite polarity mounted on an opposite side of the stator;a rotor rotationally mounted in the stator, the rotor including at least two permanent magnets mounted circumferentially thereon, a first magnet on a first side of the rotor having a first outward polarity and a second magnet on an opposite side of the rotor having an outward polarity opposite the first polarity;a direct current power source connected to the coils, the output of the power source being at least 450 volts in a range of 30 to 40 milliamperes;a switching device that reverses the polarity of the first and second coils every 180.degree. of rotor rotation; anda non-linear, capacitive, voltage-limiting load connected to the coils for rapidly dumping magnetic energy from the coils when the switching device reverses the polarity of the first and second coils.