MODULATED HIGH-FREQUENCY ELECTRONIC BALLAST

摘要

An improved high frequency ballast is disclosed. The high frequency ballast establishes a lamp current (I¿L<) for a gas discharge lamp (10) during a starting operation of the gas discharge lamp (10) wherein an operating ampere level of the lamp current (I¿L?) facilitates a substantial achievement by the gas discharge lamp (10) of a color specification associated with the gas discharge lamp (10). Thereafter, during a stable operation of the gas discharge lamp (10), the high frequency ballast applies a frequency modulation to an operating frequency of the lamp current (I¿L?) and/or an amplitude modulation of the lamp current (I¿L?).