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Thread: DC/DC and Negative Voltage

  1. #1
    Newbie
    Join Date
    Nov 1999
    Location
    Altamont, NY 12009
    Posts
    2

    DC/DC and Negative Voltage

    What is everyone who is building DC/DC power supplies doing for the -5 and -12 voltages? Are you just not hooking these up? Does anyone know of a DC/DC supply I could buy that has these voltages? I've looked at the National Semiconductor evaluation boards and don't see anything that produces negative voltages. I need to make sure that my serial ports work, I don't know whether my video card will require these or not.

  2. #2
    Newbie
    Join Date
    Sep 1999
    Location
    Lawrence, KS USA
    Posts
    46
    This is the one I'm using...

    <a href="http://www.arisecomputer.com/ps/html/ace800.htm">http://www.arisecomputer.com/ps/html/ace800.htm</a>

    I have some links to some other places to get DC/DC supplies on my links page:

    <a href="http://www.sunflower.com/~jahelka/MobileMP3/">My MobileMP3</a>

    Good Luck!
    Low

  3. #3
    Constant Bitrate
    Join Date
    Oct 1999
    Location
    CA, USA
    Posts
    118
    go buy a surplus dc to dc inverter with isolated outputs. They're cheap (under $5.00) since you don't need much current (say under 0.3A). They're used a lot on LAN cards. Simple solution in a sealed a small (1.5" x 1" x 0.5") package.


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