MULTI-LAMPS DRIVER HAVING CURRENT BALANCING FUCTION AND SENCING FUCTION

摘要

PURPOSE: A multi-lamps driver having current balancing function and sensing function is provided to reduce the manufacturing cost by decreasing the number of components used. CONSTITUTION: A multi-lamps driver(100) having current balancing function and sensing function includes a current counterpoise(130) and a lamp part(120). The current counterpoise delivers the AC power for driving the lamp to a lamp. The current counterpoise maintains the current balance of the AC power for driving the lamp. The lamp part includes the first to nth lamp groups(121~12N) which receive the AC power for driving the lamp parallely. The current counterpoise includes the first to nth transformers(BT1~BTN). The first to nth transformers have the magnetic core equipped with the first and second outer ring leg(OL1~OL2N).