*smps: Basic To Complex Ckt.*

Discussion in 'General Electronics Chat' started by JUAN DELA CRUZ, Jun 9, 2008.

  1. JUAN DELA CRUZ

    Thread Starter Active Member

    May 27, 2008
    121
    0
    Hi everyone...:)

    I want to build a *Variable Output SMPS* (small scale w/ 2A output)

    Please post a links/ tips/ STEP-by-STEP procedures in making this kind of ckt.

    Any help will be greatly appreciated.

    Thank you in advance.
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Go to National Semiconductor's site, and download their datasheet for an LM117/LM317.

    Look at the top of page 18. There is a schematic for building a low-cost 3A switching regulator using very few components.
     
  3. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    5,699
    905
    If you really want a SMPS, as opposed to linear regulator, try one of the packaged ICs. There are several in the low-power range, such as "Simple Switcher." You might also consider the MC33167/MC34167. The datasheet includes typical application circuits. John
     
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