Re: Multiple Power Supplies Question...

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Along the same lines.. Has anyone ever found an inverter to convert the
+12 to negative 12? I do lots of adapters myself, and like things to be
plug and play. It would be a great adapter trick to have the -12
converted on the adapter (although Im not looking for 3 amps!) rather
then digging through the mess for a PS with -12

-=Mark=-

James R. Twine wrote:

> Most switching power supplies used with JAMMA-based PCBs supply +5,
>+12, and -5. I have a board that I am "JAMMA-tizing", but it also
>requires -12 volts (and 3 amps worth, no less).
>
> What is the "correct" way, if any, to connect multiple power supplies
>together? For example, I would like to continue to use the switching
>P/S that I have, and just add one that outputs -12 at the required
>amperage. (I have been unable to find a single P/S with the required
>outputs without spending way too much money.)
>
> Is there anything in particular that I need to do to ensure correct
>(and safe!) operation? Make sure they are both powered off of the same
>AC line, connect the GNDs together, etc.? Sorry if this seems like a
>nave question...
>
> Peace!
>
>[Get Check Favorites 1.5 Now! http://checkfavs.jrtwine.com]
>-=- James R. Twine, MCP, (jtwine@jrtwine.com)
>-----BEGIN GEEK CODE BLOCK-----
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>b++ DI++ G++ h e(++) r++ W++ N+++ w++(+++) M-- PS+
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>
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Received on Fri Dec 20 08:20:17 2002