Patent ID: 7554234

Claim:
A motor for driving a movable body, the motor comprising: a field magnet holder that holds a field magnet; a coil holder rotatable relative to the field magnet holder; a conducting coil that is wound on the coil holder and generates a rotational force between the coil holder and the field magnet holder when a current flows in the conducting coil; a brake coil that is wound on the coil holder, where an electromotive force for generating magnetic field that suppresses relative rotation between the coil holder and the field magnet holder is induced at both ends of the brake coil when a current flows in the conducting coil; a switch unit that is electrically interposed between the both ends of the brake coil; and a control device that switches the switch unit between an open state and a closed state so as to intermittently perform suppression of the relative rotation between the field magnet holder and the coil holder.