| 摘要 |
<p>A power converter is disclosed, which is configured to convert AC mains power to a DC voltage which is lower than an rms voltage of the AC mains, the power converter comprising a rectifier for rectifying an AC mains power; a capacitor; a switch configured to supply the rectified AC mains power to the capacitor during only a low-voltage part of any cycle of the AC mains; and a DC-DC power converter, typically a switched mode DC-DC power converter, configured to convert power from the capacitor to the DC voltage. Electronic equipment incorporating such a power converter is also disclosed, together with methods of operating such a power converter.</p> |
