• DocumentCode
    3784335
  • Title

    Adaptive off-time control for variable-frequency, soft-switched flyback converter at light loads

  • Author

    Y. Panov;M.M. Jovanovic

  • Author_Institution
    Power Electron. Lab., Delta Products Corp., Research Triangle Park, NC, USA
  • Volume
    17
  • Issue
    4
  • fYear
    2002
  • Firstpage
    596
  • Lastpage
    603
  • Abstract
    The soft switching of a flyback converter can be achieved by operating the circuit in the critical conduction mode. However, the critical-mode operation at light loads cannot be maintained due to a very high switching frequency and the loss of the output voltage regulation. A control which regulates the output down to the zero load and maintains soft switching at light loads is proposed. The proposed control scheme was implemented in the 380 V/19 V, 65 W flyback DC/DC converter.
  • Keywords
    "Programmable control","Adaptive control","Lighting control","Switching converters","Voltage control","Power semiconductor switches","Detectors","Frequency","Latches","Magnetic switching"
  • Journal_Title
    IEEE Transactions on Power Electronics
  • Publisher
    ieee
  • ISSN
    0885-8993
  • Type

    jour

  • DOI
    10.1109/TPEL.2002.800958
  • Filename
    1016808
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3784335