| 摘要 |
<p>The assembly has an alternating current-direct current chopping converter (32) including a feedback loop in which a fraction of direct voltage is applied as setpoint voltage at input of an interruption control circuit. A sector block (10) has an additional zero crossing signal detection circuit (36) that is coupled with a sector line at its input and with the loop at its output, to reinject derivative signal of alternating voltage from the sector line. A synchronization circuit (46) has a pulse extractor circuit that is coupled with a low voltage power supply conductor (16) at its input. The chopping converter is chosen from a group comprising a half-bridge converter, a full-bridge converter, a push-pull converter, a forward converter and a flyback converter.</p> |
