Family of isolated zero-voltage transition PWM converters

A new family of zero-voltage transition (ZVT) PWM converters is introduced. In this family of converters, zero-voltage switching condition is achieved for main switch and zero-current switching condition is attained for auxiliary switch. A ZVT flyback converter from the proposed family of converters is analysed and various operating intervals are presented. The introduced ZVT flyback converter characteristics are compared with other ZVT converters. A laboratory prototype of this converter is realised and experimental results are shown.