POWER SUPPLY DEVICE, CAPABLE OF REDUCING COSTS AND EMI

摘要

PURPOSE: A power supply device is provided to apply not high voltage of a power factor control unit but voltage outputted a multi power supply unit to an inverter unit, thereby eliminating the self insulating requirement of the inverter unit and reducing costs and EMI.;CONSTITUTION: A power supply device includes a multi power supply unit(50), an inverter unit(60), and a power factor control unit(30). The multi power supply unit receives voltage outputted form the power factor control unit and converts the voltage into various levels. The inverter unit operates by receiving the voltage from the multi power supply unit. The power factor control unit controls the power factor of AC voltage.;COPYRIGHT KIPO 2010