SYSTEM FOR DRIVING MULTIPLE LAMPS

摘要

PURPOSE: A system for driving multiple lamps is provided to improve the accuracy of current control by employing a balancing controller for matching an impedance of each lamp path. CONSTITUTION: An inverter(70) generates an AC(Alternating Current) power. A lamp set(80) has a first lamp and a second lamp. A balancing controller(50) is connected to the inverter(70) and the lamp set(80) in order to maintain a constant current flowing through the first lamp and the second lamp and includes first to third loads. The first load is connected to the first lamp and the inverter(70). The second load is connected to the second lamp and the inverter(70). The third load is connected to the first and second loads. An impedance ratio of the third load for the second load is negative.