| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology that changes the resolution within one period of a PWM period signal while maintaining the frequency of a PWM period signal which specifies the period of a PWM signal. <P>SOLUTION: The PWM control circuit includes a PWM control signal generation section 600 for generating a PWM period signal SDC specifying the period of a PWM signal and a PWM resolution signal PCL determining the resolution within one period of a PWM period signal SDC, and a PWM section 530 for generating a PWM signal based on a PWM period signal SDC and a PWM resolution signal PCL. The PWM control signal generation section 600 changes the frequency of a PWM resolution signal PCL while maintaining the frequency of a PWM period signal SDC. <P>COPYRIGHT: (C)2009,JPO&INPIT |
