Efficient Power Conversion: GaN FETs EPC is a provider of power semiconductors using gallium nitride (GaN) technology. The key areas discussed with IDTechEx were the benefits of their GaN FETs (field-effect transistors) over the typical silicon MOSFETs (metal-oxide-semiconductor field-effect transistors) for applications such as LiDAR and for low voltage electric motors. Efficient Power Conversion: GaN FETs