Looking for BIG capacitors.

[Kareem Shehata]

On Thu, 2007-07-05 at 13:26 -0400, Colin McGregor wrote:

> > > So, why not use a battery?
> > 
> > 
> > .... or an array of smaller capacitors in parallel,
> > until you find the
> > right size.  This way you can test the design out
> > and tweak it before
> > committing to an expensive part.  It's also the kind
> > of thing you can do
> > right now.  
> 
> Attempting to find capacitors anywhere close to 0.33 F
> is an issue, It isn't like I could painlessly find say
> two 0.16 F capacitors and run them in parallel :-( . 
> 
> Digi-Key looks like the route I will have to follow
> :-( .
> 
> > Batteries would definitely be simpler, though I
> > understand not wanting
> > to keep replacing them.
> 
> Exactly, avoid batteries if at all possible is my view
> in all of this :-) .


Actually, I think there's a way to avoid batteries and capacitors.
There's already a whole whack of rails already built into your PC, so
use them!  Pull a line of off the power supply on either a spare drive
connector and use the 5V rail from there.  It won't be pretty, but it'll
work a ton better than a huge cap.

-kms

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://gtalug.org/pipermail/legacy/attachments/20070705/14591e6d/attachment.html>