Large-signal transient response of resonant converters

Abstract

Large-signal transient responses of voltage-mode resonant converters are investigated by analysis and experiment. The maximum peak values of the voltage stress on the semiconductor switch, reactor current, and output voltage are obtained for the step-change of the input voltage and of the load current. Comparison of large-signal transient responses for various resonant converters shows that full-wave resonant converters entail a much higher voltage-stress on the semiconductor switch compared with their half-wave counterparts, and that forward-type converters show a faster output voltage response that other quasi-resonant converters.<>