| 摘要 |
PURPOSE:To eliminate a torque shock under the control of acceleration/ deceleration of a series DC motor. CONSTITUTION:A current direction of a field coil 3 is made constant to a current direction of an armature 2 by diode bridges 41-44 to obtain forward/ reverse rotation, and an armature current direction is switched by bridge- connected transistors 51-54. An armature current is regulated under the control of a conducting width by a chopper operation, current control systems 13, 14, 16 are provided in a minor loop of speed control systems 11, 12, 13 to obtain a transfer from the relationship between the armature current and an induced voltage to a driving state or a regenerative state. |
