SWITCHING DEVICE

摘要

The invention relates to a switching device for operating a lamp by means of a high-frequency current, which switching device comprises a DC-AC converter whose oscillation frequency is determined by a timer circuit comprising a resistor (R1) and a capacitor (C1). In accordance with the invention, the timer circuit also comprises a chain C which includes a switching element (S3) and which is used to increase the RC period of the timer circuit during ignition of the lamp, thereby increasing the amplitude of the voltage across the lamp.