A Three-Level Full-Bridge Zero-Voltage Zero-Current Switching Converter With a Simplified Switching Scheme

This paper presents a simplified switching scheme enabling zero-voltage and zero-current switching of all the main power devices of a three-level full-bridge dc-dc converter. It also describes the main operational modes and design equations of the converter. Simulation and experimental results demonstrate the feasibility of the proposed ideas. Multilevel dc-dc converters making use of high frequency transformers are suitable for integration in solid-state solutions for application in electric power distribution systems.