| 摘要 |
PCT No. PCT/DE92/00514 Sec. 371 Date Feb. 18, 1994 Sec. 102(e) Date Feb. 18, 1994 PCT Filed Jun. 19, 1992 PCT Pub. No. WO93/00784 PCT Pub. Date Jan. 7, 1993The invention relates to a circuit arrangement for operating a discharge lamp. According to the invention the series connection of a PTC thermistor V1 with a bi-directionally acting breakdown voltage component V2 is disposed parallel to the inductance L1 and/or the capacitor C1 in a load circuit which has a discharge lamp H1, an inductance L1 connected in series with the discharge lamp and a capacitor C1 disposed parallel to the discharge lamp H1, wherein the PTC thermistor V1 and the bi-directionally acting breakdown voltage component V2 are thermally coupled. The object of the invention is to provide a simple circuit arrangement for operating a discharge lamp which allows a substantially constant ignition of a discharge lamp.
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