| 摘要 |
A motor controller comprises a PWM demodulation processor for restoring speed co mmand value Vr from PWM command signal Si, a rotation control section for gene rating drive value Dd of a motor according to the speed command value Vr, a powe r drive section for generating driving voltages Uo, Vo and Wo to energize and drive a motor winding according to the drive value Dd, a rotation speed calculating secti on for generating detected speed value Vd as an information signal to be transmitt ed to outside, and a PWM modulation processor for generating PWM information s ignal Fp pulse-width modulated by detected speed value Vd. The PWM modulatio n processor outputs the PWM information signal Fp generated in synchronization with the PWM command signal. |
