| 摘要 |
<p>In a circuit arrangement for operating at least one lamp and comprising two power feedback loops, a transformer with two primary windings and one secondary winding is comprised in the load circuit. The voltage present at a common terminal of the two primary windings is fed back by one of the feedback loops. The circuit arrangement can operate lamps with a lamp voltage that is much higher than the rms voltage of the mains supply generating only a limited amount of THD.</p> |
