| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a controller for a motor eliminating the need for the consideration of the position of a sensor installed when the rotational speed of the motor is changed. <P>SOLUTION: The controller for the motor contains: a detector detecting the motor and generating a detecting signal; a phase shifter electrically connected to the detector and generating a phase shifting signal on the basis of the detecting signal by receiving the detecting signal; a comparison circuit being electrically connected to the phase shifter and generating a comparison signal on the basis of the phase shifting signal by receiving the phase shifting signal and: a control circuit electrically connected to the comparison circuit and the motor, generating a control signal on the basis of the comparison signal by receiving the comparison signal and controlling the rotational speed of the motor by the control signal. <P>COPYRIGHT: (C)2009,JPO&INPIT |
