Patent ID: 7026590

Claim:
A low-output microwave lighting system comprising: a rectifier for rectifying general AC power inputted through a power source unit and outputting a DC voltage; a power factor compensator for compensating a power factor of the DC voltage inputted through the rectifier; an inverter circuit unit for receiving the power factor-compensated DC voltage and outputting an AC voltage through frequency varying; a magnetron driving unit for transforming the AC voltage inputted from the inverter circuit unit and generating a magnetron filament current and a high level voltage; and a magnetron lighted by the high level voltage and current outputted from the magnetron driving unit, wherein the power factor compensator comprises, a PFC controller for outputting a controlling a power factor compensation by a rectified signal inputted through the rectifier, and a PFC circuit unit for receiving the control signal and compensating a power factor of the DC voltage inputted through the rectifier.