| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC motor control method that makes it possible to reduce noise and abnormal vibration and to stabilize input power to a DC motor. SOLUTION: A phase difference T between a zero-crossing point of a current Iu flowing in phase winding Lu of the DC motor 1 and a pulse signal Vp that is outputted from a rotational position detector 4 in the DC motor 1 is controlled directly to an optimum value in accordance with the revolutions N of the DC motor 1. |
