EPC's “All-GaN” design for universal input USB PD3.1 ultra-fast charger reference design delivers 240W English News by Hordon Kim - 2022-03-28 EPC announces the availability of the EPC9171, a 90 V – 265 V universal AC input to 15 V – 48 V DC output power supply designed for USB PD3.1 ultra-fast chargers. This reference design can deliver 240 W maximum output power at 48