Abstract— This paper introduces a new dc-dc converter suitable for operation at very high frequencies under on-off control. The converter power stage is based on a resonant inverter (the Φ2 inverter) providing low switch voltage stress and fast settling time.
[pdf] This article presents the first kW-Class, 3-phase GaN-based inverter. Hard-switched at 100-kHz PWM, its heart is a 6-in-1 power module with 600-V GaN power HEMTs, achieving a new efficiency of 98.5%, a more than 2% improvement.
[pdf] High-frequency inverters have a much higher internal switching frequency than conventional low-frequency inverters - typically 20 kHz to 100 kHz. High-frequency inverters use high-frequency switches to convert incoming low-voltage DC power to high-frequency low-voltage AC power.
[pdf] 
