| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor unit whose motor torque does not lower, even in a high-speed operation region. SOLUTION: Respective individual exciting current flow circuits excite the winding portions of the A-phase and B-phase magnetic pole portions of a two- phase motor. For example, an individual excitation current flow circuit 17A1 causes an A-phase exciting current to flow into a split excitation winding 15A1 led out from a winding portion 9a formed on a magnetic pole portion 7a. All magnetic pole portions have similar structures, and a rotor 13 rotates. All of four pairs of individual excitation current flow circuits of the same configurations, wherein individual exciting current flow circuits for A-phase and B-phase are connected in parallel, use internal switches. Individual A-phase exciting current flow circuits which form respective circuits output A-phase exciting currents by the same timing, and the individual B-phase exciting current flow circuits output B-phase exciting current values by the same timing. |
