| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a low-cost load driving device that performs drive control of a load based on two different PWM signals using a microcomputer that contains an on-chip PWM module. <P>SOLUTION: The load driving device has a control circuit 10a including a microcomputer 14 that contains an on-chip PWM module 12. The control circuit 10a comprises: a first switching element Q1 connected to a PWM master signal output terminal PWM1H of the PWM module 12; and a first switch SW1 which is connected to a PWM slave signal output terminal PWM1L of the PWM module 12 and controls on/off of the PWM slave signal s. The control circuit 10a operates equivalently with a control circuit including a microcomputer that contains two on-chip PWM modules by generating a PWM signal which is different from a PWM master signal m in terms of a phase and/or a duty factor. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
