Patent ID: 7923958
Filing Date: 2011-04-12
Classification: H02P

Abstract:
1. An apparatus for driving a 2-phase SRM (switched reluctance motor), the apparatus comprising: an initializing sensor that detects each position of each phase of a 2-phase SRM, and generates an initializing sensor signal based on the detected result; a driving sensor that detects each position of each phase of the 2-phase SRM, and generates a driving sensor signal based on the detected result; an oscillator that generates pulse width modulation signals from 1-phase and 2-phase signals; a multiplying device that multiplies the 1-phase and 2-phase signals with first and second pulse width modulation signals, thereby generating 1-phase and 2-phase driving signals; and a microprocessor that initially drives the 2-phase SRM based on the initializing sensor signal at a time of an initial driving, and normally drives the 2-phase SRM based on the driving sensor signal at a time of a normal driving.