| 摘要 |
PURPOSE:To suppress torque ripple and miniaturize a motor easily to reduce the weight, adding coils generating new torque to set off the torque ripple against the coils of the motor. CONSTITUTION:Facing a multipole-magnetizied permanent magnets, a magnetic yoke forming a magnetic circuit is set. Eddy-formed coils arranged on the magnetic yoke are organized with the first coil 3 and the second coil 6. When an angle width in the rotational direction of the motor of the first coil 3 is set to be theta, then the angle width of the second coil 6 is theta/2. Torque ripple generated by current through the first coil 3 is reduced by adding torque generated by current through the second coil 6. |
