| 摘要 |
<p>A device for lighting a discharge lamp (108) comprises a rectifier (102), a switching circuit (103) having a semiconductor element to be connected to said rectifier (102); a direct power supplying circuit (104) having a rectifying circuit (105,118a,118b) and filtering circuit (120) each connected to said switching circuit (103); a discharge lamp (108) and a starter (106) which are connected after said filtering circuit (120); said starter (106) having a transformer (106d) and a smoothing capacitor (106f) for generating a high voltage and a circuit (131) having a switching element (130) and a resistance (109) connected in series provided between the smoothing capacitor (106f) and said discharge lamp (108), the device further comprising a second capacitor (110) connected parallel to said discharge lamp (108). <IMAGE></p> |
