DC-DC Boost converter Design

Discussion in 'The Projects Forum' started by Maharajan.ps, Jan 29, 2010.

  1. Maharajan.ps

    Thread Starter New Member

    Jun 17, 2009
    6
    0
    Hi,
    I am trying to realize the boost regulator circuit in hardware. i have attached the circuit design. i have also run the simulation of this circuit in matlab-simulink. now i need help in choosing the components of the circuit-mosfet and diode. which brand is best for my application?

    1. mosfet-20kHz, 60V, 8A
    2. diode-60V, 8A
    3.L-612uH
    4.C-108uF

    also suggest which brands will be available in the market?

    what protection circuit can i use for the components in the circuit?

    thank you all..
     
  2. Shikhar

    New Member

    Dec 21, 2009
    8
    0
    your output current is too high (8A)...is it really what u want???
    if not...increase the load resistance so as to get the desired output current. This will even help in reduction in ripples in your output.

    I had designed a flyback converter ...in which i used the following devices...
    Mosfet-IRF740
    Diode-In5059
    switching control using -UC3526 (for feedback)
     
  3. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Go on the website of a component distributor company like RS, DigiKey, Farnell etc and find what you need.
     
  4. Maharajan.ps

    Thread Starter New Member

    Jun 17, 2009
    6
    0
    Hi,
    thank you very much for replying.
    my output current is not 8A. my converter is designed for a 50W application at 24V. my source is gonna be a PV array at 12V and 3.9A. I have mentioned the mosfet and diode ratings by multiplying the source current by a factor 2.

    pls suggest for this application.
     
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