About relationship between boost switching frequency and PWM frequency on the LED Driver

Gary An

Intellectual 440 points

Hi all,

Is there something rule that PWM frequency should be over than boost fsw to aviod flickering?

Thank you

over 5 years ago

0 Sean Zhou over 5 years ago

TI__Mastermind 22745 points

Hi Gary,

There is no direct relationship between switching frequency and dimming frequency, But usually, we will keep switching frequency/dimming frequency>20.

Sean

Power management

Power management forum

About relationship between boost switching frequency and PWM frequency on the LED Driver