• DocumentCode
    3635115
  • Title

    A three-level buck converter and digital controller for improving load transient response

  • Author

    Zhenyu Zhao;Aleksandar Prodi?

  • Author_Institution
    Toronto Design Centre, Exar Corporation 1505-180 Dundas Street West Toronto, ON, Canada M5G 1Z8
  • fYear
    2010
  • Firstpage
    1256
  • Lastpage
    1260
  • Abstract
    A method for improving heavy-to-light load transient response in low-power switch-mode power supplies is presented in this paper. It relies on the utilization of a 3-level 5-switch buck converter and a digital controller with an extended duty ratio control value. The method is experimentally verified with a 6 V to 1.3 V, 400 kHz, 8 W digitally controlled system showing 3 times faster response than that of a conventional buck.
  • Keywords
    "Buck converters","Digital control","Transient response","Voltage","Inductance","Inductors","DC-DC power converters","Capacitors","Steady-state","Switched-mode power supply"
  • Publisher
    ieee
  • Conference_Titel
    Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE
  • ISSN
    1048-2334
  • Print_ISBN
    978-1-4244-4782-4
  • Type

    conf

  • DOI
    10.1109/APEC.2010.5433340
  • Filename
    5433340
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3635115