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, 154/143

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

Patent

CA 1056009

CONTROL CIRCUIT FOR VARIABLE RELUCTANCE MOTOR Abstract of the Disclosure A control circuit for a variable reluctance motor. A solid state switching device has 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. The circuit senses the EMF induced in the motor winding while the motor is rotating and while the switch- ing device output is nonconductive. The switching device output circuit is rendered conductive when the EMF attains a predetermined level. The EMF induced in the winding of the rotating motor results from a bias current supplied to the motor winding. The variable reluctance motor acts as its own position sensor.

236054

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