| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor control apparatus for switching a driving control gain in accordance with a size of a load with respect to an image support without installing an additional hardware such as a current detecting circuit. <P>SOLUTION: The motor control apparatus includes a DC motor 204 which rotationally drives a photosensitive drum 2a, a speed detecting part 207 detecting rotational speed of the photosensitive drum 2a, a control operation part 201 operating a feedback control value based on rotational speed which the speed detecting part 207 detects, a PWM generating part 203 supplying a PWM signal obtained by modulating the feedback control value of the control operation part 201 by pulse width to the DC motor 204 and a central operation part 208 supplying a feedback gain based on the PWM signal output from the PWM generating part 203 to the control operation part 201. <P>COPYRIGHT: (C)2010,JPO&INPIT |
