摘要 |
PURPOSE:To improve the maximum torque capable of rotating a motor by connecting the secondary filters with armature windings, comparing the two of the outputs, and controlling a semiconductor commutator by the outputs. CONSTITUTION:The secondary filters 14-16 are connected with armature windings of a commutatorless motork and the outputs of the filters 14-16 are input to comparators 17-19 to be compared. A semiconductor switching element of a semiconductor commutator is turned ON by the outputs of the comparators 17-19. The energization of the armature winding of the motor is controlled by the commutator. |