HIGH-PRESSURE DISCHARGE LAMP WITH AN AUXILIARY IGNITION ELECTRODE AS WELL AS CIRCUITRY AND PROCESS FOR OPERATION

摘要

PCT No. PCT/DE97/02271 Sec. 371 Date Jun. 22, 1998 Sec. 102(e) Date Jun. 22, 1998 PCT Filed Oct. 2, 1997 PCT Pub. No. WO98/18297 PCT Pub. Date Apr. 30, 1998The invention relates to circuitry for the operation of a high-pressure discharge lamp including a voltage transformer (T1, T2), preferably a push-pull transformer, a transformer (TR1) connected to the output of the voltage transformer (T1, T2), a pulse ignition device, and a load circuit designed as a ocrial resonance circuit (L1, C1) into which the high-pressure discharge lamp (LP) is switched. The transformer (TR1) possesses at least two secondary windings (w1c, w1d), wherein the first secondary winding (w1c) switches into the load circuit and the second secondary winding (w1d) is connected to the pulse ignition device at the voltage input. The ignition voltage output of the pulse ignition device is designed to be connected to an auxiliary ignition electrode (ZE) of the high-pressure discharge lamp (LP).