Dual Capacitor Resonant Circuit

A dual-capacitor resonant circuit for adaptive resonant energy to be used in quasi-resonant ZCS dc-dc converters has been created. Specifically, the full-bridge (FB) boost-type dc-dc converters were developed for quasi-resonant ZCS operation and smooth current commutation by utilizing L-C resonance between leakage inductance of high frequency transformer and a resonant capacitor. In the new design, two capacitors (i.e.