LED-STEUERUNGSVORRICHTUNG UND STEUERUNGSVERFAHREN FÜR DIE LED-STEUERUNGSVORRICHTUNG

摘要

In an LED control device 100, a first integration circuit Z1 changes a first reference signal REF1 to be different from a second reference signal REF2 in one cycle of a first PWM light controlling signal PWM1, and a first control unit CON1 controls a first switching element SW1 by means of a first control signal Gate1 at a first operational frequency for turning on and off a first switching element SW1, the first operational frequency being different from a second operational frequency for turning on and off a second switching element SW2, in one cycle of a first PWM light controlling signal PWM1.