Boost or cuk convertor

Discussion in 'The Projects Forum' started by naumandar, Jan 19, 2009.

  1. naumandar

    Thread Starter New Member

    Jan 19, 2009
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    0
    Hey i want to design the Dc/Dc Convertor from 12V to 19.5V with 3.5Amp, i hav studied about SMPS(Swithing mode power supplies) and found Boost convertor and Cuk convertor, will u ppl help me and giude me that how will i gain the 3.5 amp current, which ic is useful...

    Thank u So much in advance
     
  2. mik3

    Senior Member

    Feb 4, 2008
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  3. naumandar

    Thread Starter New Member

    Jan 19, 2009
    8
    0
    Thank u so much
     
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    I have never used one of these chips and didn't read the datasheet, however, I believe that you can increase the output current by using a more powerful MOS.
     
  5. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Go to: http://www.national.com
    On the upper right, enter your parameters: 10 to 15 volts input, 19.5 volts output, 3.5 amps output. Start the design. Use the Flash-based webbench.

    The LM3478 with associated components can give you a boost converter better than 90% efficient.
     
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