Integrated Buck-Flyback Converter as a High-Power-Factor Off-Line Power Supply

  title={Integrated Buck-Flyback Converter as a High-Power-Factor Off-Line Power Supply},
  author={Jos{\'e} Marcos Alonso Alvarez and Marco A. Dalla Costa and Carlos Ordiz},
  journal={IEEE Transactions on Industrial Electronics},
This paper investigates the integrated buck-flyback converter (IBFC) as a good solution for implementing low-cost high-power-factor ac-dc converters with fast output regulation. It will be shown that, when both buck and flyback semistages are operated in discontinuous conduction mode, the voltage across the bulk capacitor, which is used to store energy at low frequency, is independent of the output power. This makes it possible to maintain the bulk capacitor voltage at a low value within the… CONTINUE READING
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A hybrid solution to meet IEC 61000-3-2 regulations reprocessing a small part of the total power

  • A. Fernandez, D. G. Lamar, M. M. Hernando, J. Sebastian
  • Proc. IEEE Power Electron. Spec. Conf., Jeju…
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