• DocumentCode
    3627849
  • Title

    A novel LED driver with adaptive drive voltage

  • Author

    Yuequan Hu;Milan M. Jovanovic

  • Author_Institution
    Delta Power Electronics Laboratory, Delta Products Corporation P.O. Box 12173, 5101 Davis Drive Research Triangle Park, NC 27709, USA
  • fYear
    2008
  • Firstpage
    565
  • Lastpage
    571
  • Abstract
    This paper presents an LED driver circuit consisting of a voltage pre-regulator and multiple linear current regulators with an adaptively-controlled supply voltage. The proposed driver circuit powers all LEDs in a string with a constant current and provides consistent illumination and optimal operating efficiency at low cost. The performance of the proposed driver was verified experimentally.
  • Keywords
    "Light emitting diodes","Voltage","Regulators","Driver circuits","Temperature dependence","Power electronics","Laboratories","Lighting","Cost function","Automobiles"
  • Publisher
    ieee
  • Conference_Titel
    Applied Power Electronics Conference and Exposition, 2008. APEC 2008. Twenty-Third Annual IEEE
  • ISSN
    1048-2334
  • Print_ISBN
    978-1-4244-1873-2
  • Type

    conf

  • DOI
    10.1109/APEC.2008.4522777
  • Filename
    4522777
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3627849