Full-bridge high step-up DC-DC converter with two stage voltage doubler

Abstract

A full-bridge high step-up DC-DC converter with two stage voltage doubler is presented in this paper. The proposed converter achieves zero-voltage- switching (ZVS) all power switches and zero-current-switching (ZCS) of output rectifying diodes. The proposed converter can provide high voltage gain and the voltages across the semiconductor devices are effectively clamped. Steady-state analysis of the proposed converter is presented. A prototype of the proposed converter is developed, and its experimental results are presented for validation. © 2012 Springer-Verlag.