| 摘要 |
<p>A discharging lamp apparatus excellent in safety and stability with high-voltage surge pulse reduced during lighting. This apparatus has a drive signal circuit (10) connected to a DC power source, first and second switching devices (S1, S2), alternately controlled in switching by a pain of drive signal (11a, 11b) output from the drive signal circuit, and series-connected between the terminals of the DC power source, an induction device L5 (L3) series-connected to at least one of these switching devices (S1, S2), a pulse transformer (12) having a primary winding (L1) and secondary winding (12) wherein the primary winding (L1) is connected to the DC power source with the current direction alternately changed by the switching devices (S1, S2), a discharging lamp (13) connected and disposed between the secondary side terminals (L2), and a Zener diode device (D1) parallel-connected to the second switching device (S2).</p> |
