Electric motor driver and drive control system thereof

摘要

The motor has an inverter (2) for correcting a DC voltage to a three-phase AC voltage to drive the motor. A duty corrector (19) corrects a duty of pulse width modulated (PWM) signal generated by a PWM signal generating unit. The duty corrector corrects the duty without changing the PWM signal during detection of the inverter busbar current by the current detecting unit.