Basic DC power supply

Discussion in 'The Projects Forum' started by Khalid Abur-Rahman, Apr 6, 2009.

  1. Khalid Abur-Rahman

    Thread Starter Active Member

    Dec 25, 2008
    34
    0
    I will be getting my BSEE this coming May. Electronics was pretty hard for me, it was a challenge.. I like the field in itself. Now I want to challenge myself more. So as my first project, I am interested in making my own DC power supply. I'm not too concerned about the cost. I just want to build my own as a learning experience. Any tips on how to go about doing this? Anything would help.
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    You're supposedly graduating with a BSEE in May, and you are not able to design and build a DC power supply, a month before graduation?

    That makes me really wonder what they were teaching you, as it must not have been electronics.

    Anyway, go to National Semiconductor's site.
    http://www.national.com
    Download the datasheet for an LM337. There is a schematic about 2/3 of the way through for a +/-20v laboratory power supply using an LM317 and an LM337.
     
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