Boost Input type High Power Factor Resonant Power Supply for driving Magnetron Device

마그네트론 구동용 고역률 부스트 입력 방식의 공진형 전원장치

This paper proposes the boost input type resonant power supply for driving the magnetron device of the high-capacity microwave oven. Circuit topology of the proposed power supply is the boost input type resonant converter which uses the resonance between transformer leakage inductance and resonance capacitance. Proposed power supply obtains high power factor more than 98% through continuous current mode pulse width modulation. To verify the validity of the proposed power supply, operation principle in the steady state is analyzed and experimental results are presented.