DRIVE SYSTEM FOR STEP MOTOR

摘要

PURPOSE:To reduce the attenuating vibration and to improve the responding characteristic by setting the pulse applying timing to the timing that approx. 1/2 of the period of the intrinsic vibration of the entire system is elapsed to the pulse before one. CONSTITUTION:Since the speed data DM of each drive pulse stored in an ROM20 always has a stopping point of a rotor when the rotor reversely rotates after the attenuating vibration of the stepping response of a step motor temporarily passes the stable point, the pulse applying timing is set to apply the drive pulse at the stopping point. A counter 22 counts the clock signal CK in the designated number by a speed data DA to generate a drive pulse MP.