Design of GaN based 72V,3.3KW LLC Resonant Converter for on-board EV Charger

This paper proposes the designing procedure for Inductor-Inductor-Capacitor (LLC) Resonant DC-DC Converter using GaN HeMT MOSFET for on-board battery charger used in Electric Vehicle application. Based on LLC Converter's features and characteristics, design specification is studied. By using Fundamental Harmonics Approximation model, Zero Voltage Switching (ZVS) on the primary side has been report...