Patent ID: 6337800
Filing Date: 2002-01-08
Classification: H05B

Abstract:
A low frequency to high frequency power converter comprising:a source of low frequency voltage, having two source connection points between which the low frequency voltage is maintained, a DC supply circuit having at least two diodes and four terminals, two of said terminals being AC-side terminals, and two of said terminals being DC-side terminals, one of said diodes being connected between one of the AC-side terminals and one of the DC-side terminals, an input network connected in series between at least one of said source connection points and a first of said AC-side terminals, a high frequency voltage source connected to receive power from said DC-side terminals, and bulk storage capacitor means for maintaining said DC voltage substantially constant during a cycle of the low frequency line voltage, characterized in that said converter further comprises a feedback network connected between said high frequency voltage source and a node at the AC-side of the DC supply circuit, said feedback network being part of a feedback path which has an inductive impedance at one or more frequencies within the operational frequency range of said high frequency voltage source.