Patent ID: 6922114
Filing Date: 2005-07-26
Classification: H05B,Y02B

Abstract:
1. An operating method and a system for the resonant operation of high-pressure lamps in longitudinal mode, using a high-frequency carrier frequency that is frequency-modulated by means of a sweep signal generator, the frequency of the sweep signal being derived from the first azimuthal and radial modes and being simultaneously amplitude-modulated, a controller setting the fundamental frequency of the AM signal, the fundamental frequency of the AM being derived from the second longitudinal mode, wherein, after the ignition of the lamp, three operating states are passed through sequentially: a) a warm-up phase, for which f b) an impressing phase that is distinguished by a temporally changing AM deviating from the conditions of the continuous operation and having an AM degree different from zero; and c) a continuous operation with constant conditions of the AM, in the case of which the f