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SG3524 100v 25a smps

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Discussion in 'General Electronics Discussion' started by ssshocked, Dec 1, 2012.

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  1. Dec 1, 2012 #1
    ssshocked

    ssshocked

    2
    0
    Dec 1, 2012
    Hi all
    i have found this schematic
    (the second one, the bad quality)
    it was said that this is a low noise, high eff. adjustable lab smps with adj. current limiting
    so i decided to redraw it and mod it
    i am quite lazy so i just copied the the values
    the transformer primary will be 22 turns CT on etd49 core it will work at 200khz
    i was too lazy to add the output filter
    (the first, high quality)
    the IGBT is IRGPS40B120UP
    http://www.google.bg/url?sa=t&rct=j&...6Z6Npw5gD0-LoA

    so, is it going to work
    if not tell me how to do it
     

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    Last edited: Dec 1, 2012
  2. Dec 4, 2012 #2
    davenn

    davenn Moderator

    13,836
    1,950
    Sep 5, 2009
    doesnt look too good
    you appear to have the input 120V connected directly to the output

    why redraw ( and incorrectly) an already working design ?

    Dave
     
  3. Dec 4, 2012 #3
    bountyhunter

    bountyhunter

    11
    0
    Mar 9, 2012
    I don't think you are going to get 2.5kW out of a two-transistor forward converter.

    At least, we never could.
     
    Last edited: Dec 4, 2012
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