Boost-Half Bridge Single Power Stage Configured PWM DC-DC Converter for Residential PEFC Stack Interface

This paper presents the design and implementation of 1㎾ prototype DC-DC power converter with bridge voltage-doubler suitable for small scale PEM fuel cell system and its associated control scheme. The operation principle of this converter is described using some operating waveforms and the switching mode equivalent circuits based on simulation results and a detailed circuit operation analysis and soft-switching conditions.