| 摘要 |
PURPOSE:To enable to facilitate the control of the speed of a DC linear motor by providing an armature coil and a generating coil oppositely to a field magnet, using one as a movable element and the other as a stator. CONSTITUTION:An armature coil 10 is provided oppositely to a field magnet 5. A plurality of generating coil 16 groups superposed and disposed by displacing the phase are opposed to the magnet 5. The magnet 5, or either one of the armature coil 10 and the generating coil 16 group is used as a movable element, and the other is used as a stator. The speed is controlled by a control circuit 18 on the basis of a smooth generating voltage waveform having less ripple obtained from the coil 16 group. |
