Control circuit for variable reluctance motor

Details Control circuit for variable reluctance motor Control circuit for variable reluctance motor

H - Electricity

02

P

318/103

H02P 25/08 (2006.01) H02P 6/18 (2006.01)

Patent

CA 1063167

CONTROL CIRCUIT FOR VARIABLE RELUCTANCE MOTOR ABSTRACT OF THE DISCLOSURE A control circuit for a variable reluctance motor comprises a solid state switching device having its output circuit connected in series with the electrical winding of the motor. A circuit is coupled to the motor winding and to the control electrode of the solid state switching device and senses the EMF induced in the motor winding resulting from residual magnetism while the motor is rotating and the switching device output is nonconductive. The switching device output circuit is rendered conductive when the EMF attains a predetermined level. The motor acts as its own position sensor.

310935

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