Design and Implementation of GaN based DC-AC Converter for Wireless Power Transfer Applications

This paper presents three different approaches for designing dc-ac converter based on GaN transistor. The proposed circuits could be used to design the transmitter side of Wireless Power Transfer (WPT) systems. The first two approaches are based on single-stage and double-stage Colpitts Oscillators, and the third one is based on an H-bridge converter. The three circuits have been simulated using LTSpice software, then implemented on PCB boards. The whole WPT system has been implemented, cased, and tested.