| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent generation of noise due to the fact that a plurality of light-emitting diodes are driven at the same timing by a plurality of PWM signals, even if the plurality of PWM signals, in which overlap of change in signal timing is generated non-periodically, is input. <P>SOLUTION: The light-emitting diode lighting control circuit 103 comprises a PWM signal adjustment circuit 104 which detects overlap of change in timing of a plurality of PWM signals, and alters the change in timing of at least any one PWM signal out of the plurality of PWM signals so that the change in timing of the plurality of PWM signals does not overlap each other when it is detected. <P>COPYRIGHT: (C)2012,JPO&INPIT |
