Isolated ZVS two-transformer boost converter

Abstract

A new zero-voltage-switching (ZVS) two-transformer boost converter (TTBC) is proposed in this paper. The magnetizing inductors of two transformer act as boost inductor, while two transformers provide a galvanic isolation. Moreover, ZVS of all switches can be achieved. Therefore, the proposed converter is promising for high step-up isolated applications with simple structure and high efficiency.