Implementation of a phase shift full-bridge converter for LDC using GaN HEMT

In this paper, a phase shifted full bridge (PSFB) dc-dc converter with secondary synchronous rectifier is implemented using GaN HEMT. The design considerations including PCB layout, optimal dead time for efficiency are described, and prototype hardware is implemented based on analysis results. The experiment is carried out with a 500W prototype, and power efficiency is compared with a conventional silicon based PSFB converter to verify the performance of GaN based system.