A new ultrasonic series resonant converter with integrated L-C-T

Abstract

An integrated structure for the capacitor, inductor, and transformer of a series resonant power converter is presented. It is shown that the necessary capacitance can be achieved by using a bifilar primary, and the leakage inductance of the transformer replaces the physical inductor. By integrating three components into one, it is possible to save space, mass, volume, and cost. An integrated L-C-T structure has been constructed and operated in a series resonant converter.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>