BACKLIGHT CIRCUIT FOR CURRENT BALANCING

摘要

PURPOSE: A backlight circuit for current balancing is provided to minimize the size of PCB by driving same phase. CONSTITUTION: A transformer has an output terminal(10) and ground terminal(20) in a secondary side. The N U-shaped lamps(30~60) are connected in parallel. The N balancing transformer(70~100) are connected to each of the U-shaped lamp. In the U-shaped lamp, each one-side terminal is connected to the output terminal in parallel. The other-side terminal is connected to each of the balancing transformer. The balancing transformer is connected to the close loop. The balancing transformer is connected between the other side terminal and ground in the second side.