Patent ID: 6411060
Filing Date: 2002-06-25
Classification: H02P

Abstract:
A driving device for a switched reluctance (SR) motor, comprising:a driving circuit including a plurality of switching transistors, and applying a direct current voltage to windings of each phase of a stator of the SR motor by switching the plurality of switching transistors; a position detection unit for detecting a position of a rotor of the SR motor by using one position detection sensor; and a microprocessor for aligning the rotor by sequentially outputting a plurality of control signals at an initial stage of the starting of the SR motor, and for sequentially outputting the plurality of control signals according to a result detected from the position detection unit after starting the SR motor, the plurality of switching transistors of the driving circuit being switched by the plurality of control signal; wherein the plurality of switching transistors are at an ON state for a sufficient time according to the control signals so that a salient pole of the rotor can be pulled to a salient pole of the stator.