Virginia Tech
    • Log in
    View Item 
    •   VTechWorks Home
    • Virginia Tech Patents
    • Virginia Tech Patents
    • View Item
    •   VTechWorks Home
    • Virginia Tech Patents
    • Virginia Tech Patents
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Two-stage multichannel LED driver with CLL resonant circuit

    Thumbnail
    View/Open
    9544956.pdf (1.150Mb)
    Downloads: 92
    Date
    2017-01-10
    Inventor
    Li, Qiang
    Lee, Fred C.
    Chen, Xuebing
    Huang, Daocheng
    Metadata
    Show full item record
    Abstract
    In a two-stage power converter providing voltage regulation in a first stage, zero voltage switching (ZVS) is provided in switches in an unregulated, constant frequency second stage of a two-stage power converter by an inductor of a CLL resonant circuit connected in parallel with both a series connection of an external inductor and a primary winding of one or more transformers connected in series and an output of the switching circuit so that the output capacitances of the switches can be charged and discharged, respectively, by current in the parallel-connected inductor and independently of current in the magnetizing inductance of the transformer. Therefore, the magnetizing inductance of the transformer can be made sufficiently large to balance currents delivered to respective loads as is particularly desirable for driving a plurality of unbalanced LED strings independently of the value of the parallel-connected inductor which is desirably small.
    URI
    http://hdl.handle.net/10919/87859
    Collections
    • Scholarly Works, Center for Power Electronics Systems (CPES) [33]
    • Scholarly Works, Electrical and Computer Engineering [531]
    • Virginia Tech Patents [619]

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

    Virginia Tech | University Libraries | Contact Us
     

     

    VTechWorks

    AboutPoliciesHelp

    Browse

    All of VTechWorksCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Log inRegister

    Statistics

    View Usage Statistics

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

    Virginia Tech | University Libraries | Contact Us