ComputerVoltageSources

Nice soldering job - very tidy.

I suppose that the real test of this modification
would be how well two such systems track each other in
real-time.

Ceramic Resonators such as was originally mounted have
+/- 0.5% accuracy. Crystal accuracy is typically
+/-50ppm (100x better than the resonator), that means
a worst-case error between 2 crystal oscillators of
100ppm. If you were using these to run a clock that
equates to .36 seconds disagreement over an hour.

To hit the 1ms accuracy that Gary quoted earlier you'd
need to resynchronize such a system at least every 10
seconds minimum. So, while using a crystal doesn't
eliminate the synchronization problem, it
significantly reduces the effort required to do so and
still maintain reasonable accuracy.

Eric

--- djbrow54 <davebr@...> wrote:

> Success!  I had a tech at work take off the
> resonator.  I added the 
> capacitors (0302, I think) and a through-hole
> crystal.  Man were those 
> capacitors small!  Rock solid performance!  Photo
> "AtomPro28 crystal.
> jpg" is in the Files>BasicAtomPro>Original PSIM>Dave
> Brown folder.




 
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