| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a discharge lamp-lighting device which can finely set a preheating current value and a preheating time of a filament. <P>SOLUTION: The discharge lamp-lighting device includes: a booster circuit 4 outputting a DC boosting voltage; an inverter circuit 5 converting the DC boosting voltage outputted from the booster circuit 4 into a high-frequency voltage; a resonant circuit 9 preheating the filaments f1, f2 of a discharge lamp at the high-frequency voltage outputted from the inverter circuit 5, and lighting the discharge lamp 12 after preheating; and a control circuit 14 controlling the preheating current value of the discharge lamp 12. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
