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Analysis and Modeling of Buck Converter in Discontinuous-Output-Inductor-Current Mode Operation

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DOI: 10.4236/epe.2013.54B163    4,135 Downloads   5,059 Views  


The Buck converter with LC input filter operating in discontinuous output current mode has a high power factor with a constant duty cycle. A Buck converter in this operation mode can reduce the reverse recovery loss of the freewheeling diode thus increase the efficiency. The operation, power factor analysis and modeling of the converter are studied in this paper. Experimental results are presented to verify the theoretical predictions.

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The authors declare no conflicts of interest.

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J. Yang, W. Zhang, F. Al-Naemi and X. Chen, "Analysis and Modeling of Buck Converter in Discontinuous-Output-Inductor-Current Mode Operation," Energy and Power Engineering, Vol. 5 No. 4B, 2013, pp. 850-856. doi: 10.4236/epe.2013.54B163.


[1] R. Hammano and R. Neidorff, “Improving Input Power Factor - A New Active Control Simplifies the Task,” in Proceedings of the 19th International PClM Conference, 1989.
[2] R. Keller and G. Baker, “Unity Power Factor Off Line Switching Power Supplies,” in IEEE INTELEC Record. 1984, pp. 332-339.
[3] V. Grigore and J. Kyyra, “High Power Factor Rectifier Based on Buck Converter Operating in Discontinuous Capacitor Voltage Mode,” in Proc. IEEE Appl. Power Electron. Conf. Expo., Mar. 1999, pp. 612-618.
[4] Y. S. Lee, “Modeling, Analysis, and Application of Buck Converters in Discontinuous-Input-Voltage Mode Operation,” IEEE Trans. Ind. Electron, Vol. 12, No. 2, 1992.
[5] H. Endo, T. Yamashim and T. Sugiura, “A High-Power-Factor Buck Converter,” Proc. of the IEEE Power Electronics Speciulists Conference, pp. 1071-1076. R. W. Erickson, “Fundamentals of Power Electronics,” M, second edition, 2001
[6] PHILIP C. TODD, “UC3854 Controlled Power Factor Correction Circuit Design,” UNITRODE application note, U134.

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