Power supply questions

Discussion in 'General Electronics Chat' started by beau, Mar 10, 2013.

  1. beau

    Thread Starter New Member

    Mar 10, 2013
    Hi all,

    I need a power supply for a DSP board that will do both 12-0-12 and +5v, needs to be SUPER compact, any ideas?
  2. GopherT

    AAC Fanatic!

    Nov 23, 2012
    AXT box from a desktop computer.

    They are limited in -12 v output amps but meet the test of your needs, all for about $20. Actually free if you have a scrap desktop.
  3. panic mode

    Senior Member

    Oct 10, 2011
    what is the current requirement? where is it supposed to be powered from?
  4. beau

    Thread Starter New Member

    Mar 10, 2013
    Power requirements,

    Output 1 +5 V 1 A
    Output 2 +12 V 1 A
    Output 3 -12 V 0.3 A
  5. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    From 120V Mains or from battery?

    Battery supply that meets most of your requirements. A +12V to -12V DC-DC converter could be added for your negative rail.

    Line Powered, Everything you want, and small but non-stocked.

    Line Powered, a bit anemic on 2 rails but in stock.

    What is your input voltage range, DC or AC, and would you mind having a second DC-DC Converter for -12V from +12V rail ? That would make it a bit cheaper, but a bit larger as well. These are all only about 5"x3"x3", or 110mm x 65mm x 65mm give or take.
    Last edited: Mar 11, 2013