From variable to constant switching frequency topologies: A general approach

Abstract

A general method of generating constant switching frequency topologies by adding one switch to the variable switching frequency converter is presented. With the help of the state-plane trajectory of the converter, the position of the additional switch is easily determined. To demonstrate such an approach, examples of generating a family of constant frequency soft-switching topologies from the same converter is presented. Relationships among the generated topologies are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>