Design and Development of 330 W, 1500 V / 110 V DC-DC Converter

Abstract

This project presents the design 330W, 1500/110 V SMPS based on a two-switch forward topology. This project reviews the different isolated topologies and focuses on the dominance of two-switch forward topologies. The main advantage of two-switch forward topology is that transformer size is decreased and diodes are used instead of reset winding. Two-switch forward converter topology offers fewer switching components, reduced switching losses and less voltage stress on switching components. Cool SiC type MOSFETs are used for reducing high switching losses. Closed-loop design of SMPS aids in maintaining the constant output voltage of 110V, 3A for a wide range of input voltage i.e., 800V-1500V. The MOSFET conduction and switching losses are calculated in the Texas Instrument’s Power Stage Designer Tool.