Patent ID: 6700348
Filing Date: 2004-03-02
Classification: H02P,Y02P

Abstract:
A single-phase switched reluctance motor (SRM) driving method comprising the steps of:(a) sensing a rotating speed and a phase of a motor through a plurality of sensors and producing sensed signals; (b) selecting a first sensor among the plurality of sensors, receiving the sensed signal produced from the first sensor, and producing a control signal for controlling a voltage supplied to the motor; (c) detecting the rotating speed of the motor, and comparing the sensed rotating speed with a reference speed determined by a system; (d) selecting a second sensor if the sensed rotating speed of the motor is faster than the reference speed as a result of comparison at step (c), and producing a control signal for controlling the voltage supplied to the motor in accordance with the sensed signal produced from the first or second sensor and thereby controlling a single driving current, wherein a signal produced from the first sensor selected is continuously received if the sensed rotating speed of the motor is slower than the reference speed as a result of comparing the sensed rotating speed with the reference speed.