Patent ID: 7583000

Claim:
A starting system for a salient-poled-rotor electric motor having a stator with a plurality of spaced salient poles, a plurality of field coils of unchanging polarity, and a plurality of armature coils, wherein each field coil of said plurality of field coils at least partially overlaps an armature coil of said plurality of armature coils, and wherein variable excitement of said armature coils alternately creates a magnetic pole force in every other pole of said plurality of spaced salient poles of said stator, and wherein said stator has a first position, wherein said rotor is in stasis with respect to said stator and torque between said rotor and said stator is substantially minimized, and a second position, wherein torque between said rotor and said stator is substantially maximized, comprising: a drive circuit for providing current to said field coils and said armature coils; a start circuit for regulating said drive circuit by vibrating said rotor to said second position; a current source connectable to said drive circuit for variable excitation of said armature coils to produce substantially continuous rotation of said rotor; and a switch for electrically engaging said start circuit with said drive circuit while said rotor moves from said first position to said second position, and for electrically engaging said current source with said drive circuit when said rotor reaches said second position.