[206] LED Driver Circuit Explained / Working PT4554D /PT4554C LED Driver IC in Urdu Hindi

in this video i explained working principle of LED Driver Circuit Explained / Working PT4554 LED Driver IC in urdu hindi language
#LED #driver is basically similar to an un-isolated buck converter, in this circuit the driver IC controls its switching frequency to change the inductive reactance of the inductor, so that the LED panel will receive the regulated voltage even the line voltage vary from minimum to maximum limits.