| 摘要 |
<p>The present invention relates to an apparatus and method for driving a gas discharge lamp, and in particular for dimming fluorescent lamps or tubes. An electronic circuit for controlling a gas discharge lamp (4) comprises generation means for generating a high frequency pulse train that may be applied to the electrodes of the lamp (4) to light the lamp, means by which the generation means may be connected to an electrical power source, a choke (L3) to limit the current drawn by the lamp (4), means (3) for producing a first (P0) series of pulses and independent from this a second (P1) series of pulses, and means (T0, T1, L3) for combining additively the first and second series of pulses to produce the high frequency pulse train.</p> |
