| 摘要 |
<p>A ballast circuit (1) for the operation of a discharge lamp includes a bridge rectifier (5). A capacitive energy storage device (C1) and a load circuit (9) are connected in series across the bridge rectifier (5). A charge circuit (12) provides charge to the capacitive energy storage (C1) from the load circuit (9) in a potential so as to add to the potential from the output of the bridge rectifier (5).</p> |
