Patent ID: 7777429
Filing Date: 2010-08-17
Classification: H05B,Y02B

Abstract:
1. A discharge lamp lighting circuit comprising: an inverter circuit which has two output ends, and which outputs an AC voltage between said two output ends; a series resonant circuit which comprises a capacitor, at least one inductor and at least one transformer, and which supplies AC power to said discharge lamp, wherein said capacitor, said at least one inductor and said at least one transformer are coupled in series between said two output ends of said inverter circuit; a driving portion which drives said inverter circuit; and a controlling portion which provides said driving portion with a control signal for controlling said inverter circuit, said controlling portion comprising: wherein one component of said inductor, said transformer, and said capacitor which comprise the series resonant circuit, is coupled between one of said two output ends, and said detection point.