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Is 7-volts too much for a 5-volt requirement?

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postalp123:
As posted before, I was looking for a power source for my druin board (requires 5-volts).

I managed to find an old AC adapter running 7-volts AC, is this too much for the Druin to handle?

Thanks!
-PP

ChadTower:

Depends on the application, really.  No way to answer that without knowing what it's being fed into.  Lots of 5v things get 7-8v in and regulate it down inside.  Lots don't.

postalp123:

--- Quote from: ChadTower on December 12, 2006, 10:58:15 am ---
Depends on the application, really.  No way to answer that without knowing what it's being fed into.  Lots of 5v things get 7-8v in and regulate it down inside.  Lots don't.


--- End quote ---
For the record heres what I'm powering:
http://ca.geocities.com/druins22@rogers.com/ls30/


Ed_McCarron:
Not really familiar with that board, but looking at it I'll make two assumptions:

That theres no regulator, unless theres one built into the chip.  Not likely.

It wants DC, not AC.  That reg won't work regardless of voltage.  Looks like DC in is on the top barrier terminal, and ties right to +5v and gnd.  The electrolytic cap is for filtering.  No regulation/rectification.

Ed_McCarron:
Looked at the schematic.

5v DC only.

Can you pull it from a drive connector on the computer you have in there?  I assume this is a MAME app?

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