Quasi-Resonant DC/DC Converter for High Power Fuel Cells Systems

Fuel cells are considered strong candidates for future source of power generation. One of the main challenges in the use of this technology has been the design of dc-dc converter that provides regulated output voltage which is also cost-efficient. This paper presents a converter topology that enhances efficiency of the system by reducing switching losses at higher frequencies by implementing a ZVS scheme. Owing to a simple control strategy with no requirements for expensive components, the overall system cost has been reduced. Experimental and theoretical results are included to validate the claims