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Lpc2000

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Message

Re: [lpc2000] Re: Crossworks and Ram debug

2004-07-14 by Leon Heller

----- Original Message ----- 
From: "hodgejackiehank" <hodgejackiehank@...>
To: <lpc2000@yahoogroups.com>
Sent: Wednesday, July 14, 2004 7:59 AM
Subject: [lpc2000] Re: Crossworks and Ram debug


> --- In lpc2000@yahoogroups.com, "g2100g" <g2100g@e...> wrote:
> > --- In lpc2000@yahoogroups.com, "hodgejackiehank"
> > <hodgejackiehank@y...> wrote:
> > >
> > > The Olimex stuff works fine, and well built, allthougth the V.regs
> > > could do with a bit more heatsinking, I would reccomend using a
> > > regulated supply @ about 7V.
> >
> > Regarding the voltage regulators on the Olimex board, please see my
> > message #2737, as well as the messages from Tsvetan (of Olimex)
> > referenced there.  Are you able to shed any additional light on this
> > issue?
>
> No, I have no latchup problems, or any particular problem with the
> board per se. However there is a breadboard area on the card and
> obviously it would be convinient if circuitry here could be supplied
> from the 3v3 regulator. At the 9VAC max input and max ouptput of the
> LM1117 this would be about 6.5W, way over what the regulator could
> dissipate. My point was simply that with a bit more heatsink it would
> be better.

I'd just put an additional regulator on the breadboard area with the input
connected to the existing LM1117 input.

Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller

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