Patent ID: 7378800
Filing Date: 2008-05-27
Classification: H05B,Y02B

Abstract:
1. A starting apparatus for a high-pressure discharge lamp (LP) provided with an auxiliary starting electrode (Z), the starting apparatus having a series resonant circuit for generating a starting voltage for the high-pressure discharge lamp (LP), wherein a resonant inductance of the series resonant circuit comprises a primary winding section (L 41 ) of a transformer, a secondary winding section (L 42 ) of the transformer applies the starting voltage to the auxiliary starting electrode (Z) of the high-pressure discharge lamp (LP), characterized in that once a gas discharge in the high-pressure discharge lamp has been started, an impedance of the series resonant circuit connected in series with a discharge path of the high-pressure discharge lamp stabilizes the gas and a DC voltage isolation capacitor (C 42 ) is provided in series with the secondary winding section (L 42 ) and the auxiliary starting electrode (Z).