CURRENT BALANCING CIRCUIT FOR DRIVING LED BACKLIGHT LIGHT SOURCE

摘要

A current balancing circuit for driving an LED(Light Emitting Diode) backlight source is provided to increase brightness uniformity of the plurality of LED arrays. A current balancing circuit for driving an LED backlight source includes a plurality of transformers(11) corresponding to a plurality of LED arrays(21). Primary sides of the plurality of transformers are connected between a power input terminal(Vin) and a ground in series. Secondary sides(11-2) of the plurality of transformers are connected to a plurality of first electrodes(21-1) of the LED arrays corresponding to one ends, respectively. The other ends are connected to the ground in common.