Patent ID: 6246181
Filing Date: 2001-06-12
Classification: H05B

Abstract:
A discharge lamp lighting device comprising a rectifier for rectifying an AC power into a DC power, first diode connected at one end in forward direction to one of output terminals of the rectifier, a smoothing capacitor connected between the other end of the diode and the other output terminal of the rectifier, second diode connected at one end in forward direction to the other end of the first diode, first and second capacitors connected respectively in parallel to the first and second diodes, a pair of switching elements connected in series between the other end of the second diode and the other output terminal of the rectifier, third and fourth diodes connected respectively in inverse parallel to each of the pair of the switching elements, a load circuit including a discharge lamp, and an inductor element connected between a junction point of the pair of the switching elements and one of the output terminals of the rectifier and across the discharge lamp in the load circuit.