PCT No. PCT/DE93/00849 Sec. 371 Date Apr. 13, 1995 Sec. 102(e) Date Apr. 13, 1995 PCT Filed Sep. 13, 1993 PCT Pub. No. WO94/07345 PCT Pub. Date Mar. 31, 1994A clocked power supply circuit is proposed which includes a control arrangement (20) which outputs switching signals (21) to switching means (13) as a function of a load condition present on the output side and which includes at least one inductive element (12). Provided on the output side is a load (22) which is independent of the electric consumer (18), preferably a gas discharge lamp, and is at least temporarily active. It is possible using the load (22) specifically to avoid no-load operation of the clocked power supply by means of a load, as a result of which the system-induced reaction time can be substantially shortened in the case of a short-term energy requirement of the consumer (18). The energy required in the short term can be supplied by the magnetic energy stored in the inductive element (12). The clocked power supply circuit according to the invention is suitable, in particular, for the energy supply of high-pressure gas discharge lamps (18) which are arranged, for example, as headlight lamps in a motor vehicle.
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