Device for operating a discharge lamp

摘要

In the case of the device according to the invention for operating a discharge lamp, a low-frequency AC voltage is rectified by a full-wave rectifier (2) in order to supply a pulsating voltage which is superimposed on an additional or auxiliary voltage which is at a predetermined level and is supplied from an additional or auxiliary voltage source (6). The resultant, combined pulsating voltage is converted into a high-frequency voltage by a converter or transformer (3). The high-frequency voltage supplied by the converter (3) is used for operating or driving a discharge lamp. The minimum magnitude Vmin of the resultant voltage is set at 1/3 to 4/5 of the maximum value Vmax of this resultant voltage. <IMAGE>