An AC-DC power converter is composed of AC input, a first rectifying
circuit, a second rectifying circuit, a DC-DC converter and a DC output.
The DC-DC converter has a DC input. The first rectifying circuit and the
second rectifying circuit are connected in parallel between the AC input
and the DC input of the DC-DC converter. At least one of the rectifying
circuits comprises a phase shifting element that provides a phase shift
at the AC line frequency.