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Quasi-square-wave converters: topologies and analysis

1988; Institute of Electrical and Electronics Engineers; Volume: 3; Issue: 2 Linguagem: Inglês

10.1109/63.4348

1941-0107

V. Vorperian,

Wireless Power Transfer Systems

A class of converters with zero-voltage or zero-current switching characteristics is analyzed using a method originally developed for quasiresonant and PWM (pulsewidth-modulated) converters. The method relies on identifying simple three-terminal structures, called converter sections, that contain the switches and the resonant tank elements. The various zero-voltage-switched and zero-current-switched converters are obtained by permutation of these converter sections between source and sink. The method unifies the analysis of this class of converters in a single equivalent circuit model. The voltage and current waveforms in these converters are essentially squarelike except during the turn-on and turn-off switching intervals. >