Tung & Associates
LED controller with phase-shift dimming function and LED phase-shift dimming circuit and method thereof
The present invention discloses an LED controller with phase-shift dimming function and an LED Phase-Shift dimming circuit and method thereof. The LED controller includes: a power circuit for supplying DC power to multiple LED channels; and an LED phase-shift dimming circuit for receiving a pulse width modulation (PWM) input signal and generating multiple phase-shifted PWM signals with a shifted phase between one another, wherein a turn-ON timing of each of the multiple phase-shifted PWM signals follows a turn-OFF timing of a previous PWM signal which is the input PWM signal or a previous one of the multiple phase-shifted PWM signals.
Richtek Technology Corporation, R.O.C.
H H Y
H05B H05B Y02B
inventional inventional additional
Jing-Meng
Liu