Input-Current Distortion of CCM Boost PFC Converters Operated in DCM

@article{Gussem2007InputCurrentDO,
  title={Input-Current Distortion of CCM Boost PFC Converters Operated in DCM},
  author={Koen De Gussem{\'e} and David M. Van de Sype and Alex P. M. Van den Bossche and Jan A. Melkebeek},
  journal={IEEE Transactions on Industrial Electronics},
  year={2007},
  volume={54},
  pages={858-865}
}
When power-factor correction (PFC) converters designed for operation in continuous-conduction mode (CCM) at full power are operated at reduced load, operation in discontinuous-conduction mode (DCM) occurs in a zone that is close to the crossover of the line voltage. This zone will gradually expand with decreasing load to finally encompass the entire line cycle. Whereas, in CCM, the parasitic capacitances of the switches only cause switching losses, in DCM, they are a source of converter… CONTINUE READING
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