| 摘要 |
A power feed current is held at a set value by a chopper circuit, and part of the magnetic energy of cores of armature coils (32a, 32b,...) is charged to small capacitors at a chopper frequency at the time of the stop of the power feed. In this way, energy loss resulting from iron loss and copper loss at the alteration of the power feed to the armature coils (32a, 32b,...) is compensated for, and the rise of the power feed current can be sped up, and a high speed high torque reluctance type motor can be obtained. When the technology described above is applied to a three-phase D.C. motor having a magnet rotor (1) and to a stepping motor, the same action and effect can be obtained by the same construction. <IMAGE> |
