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Integrated ZCS quasi-resonant power factor correction converter based on flyback topology

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4 Author(s)
Jun-Young Lee ; Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea ; Gun-Woo Moon ; Hee-Jhung Park ; Myung-Joong Youn

An integrated zero current switching (ZCS) quasiresonant converter (QRC) for the power factor correction with a single switch is presented in this paper. The power factor correction can be achieved by the discontinuous conduction mode (DCM) operation of an input current. The proposed converter offers good power factor, low level line current harmonics, and tight output regulation. The design equations are suggested and a prototype converter has been designed based on these equations and experimentally investigated. The input current waveform of the prototype shows less than 15% of total harmonic distortion. Also, the efficiency and power factor of about 84% and 0.977, respectively, can be obtained under the rated condition

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Power Electronics, IEEE Transactions on  (Volume:15 ,  Issue: 4 )