Damping improvement of VR-type motor by exciter control by exciter control

여자제어에 의한 VR 형 스텝모터의 제동특성개선

In applications of step-motor, the requirements of small-size and strong-power gave birth to feed-back drive to the maximum efficiency and complete damping. In this paper, a new scheme that determines switching times from sensed values of position and speed is presented for simple bang-bang type drive circuit. The optimal values of each phase switching times are obtained using conjugate gradient method.