Mode analysis of half-bridge zero-voltage-switched multi-resonant converter

A complete DC analysis of the half-bridge zero-voltage-switched multiresonant converter is presented. The analysis reveals four different modes of operation, which are verified experimentally. A computer algorithm is developed for calculating the DC voltage-conversion-ratio characteristics and for facilitating the design optimization of half-bridge multiresonant converter. The algorithm can be easily adapted for the analysis of the small-signal properties of the multiresonant converter.