Analysis and design of voltage‐lift technique‐based non‐isolated boost dc–dc converter

Abstract

In this study, a new structure is proposed for non‐isolated boost dc–dc converters using voltage‐lift technique. The increasing voltage gain in the proposed converter is achieved step‐to‐step by a simple structure. In the proposed converter, there is a direct connection to an inductor in input side which provides free current ripple for the input source. Here, the proposed converter performance analysis and their relations are presented in continuous conduction mode and discontinuous conduction mode as well as voltage gain equations for each mode in detail. Then, switching current stress equations in each mode and critical inductance equations are extracted for design considerations. Finally, the carried theoretical analysis and satisfying operation of the proposed converter are verified via experimental results of laboratory prototype.