This engineering report describes a 20V,7.5Apower supply for90VAC to264VACAIO power supplieswhich canalso serveas a general purpose evaluation board for the combination ofaHiperPFS-3power factor stage with LinkSwitch-HPoutput stageusing devices from the Power Integration’sHiperPFS-3and LinkSwitch-HPdevice families.The design is based on the PFS7526HIC for the PFC front end, with a LNK6779Eutilized in anisolated flyback output stage.Due to low power sunsumption of LinkSwitch-HP device, no standby stage is neededto meet the no-loadand light load consumption requirements.