Hi Skip
I don't recall on your posts
here or in our phone
conversation your results for
the relays being operated at
normal voltage, I know you'll
set me strait here.
I can't get these relays to
bounce significantly on make
below ~40 vdc. What I have
done is to mistake the effects
of using a bench supply on the
contacts as bounce. It looks
like a diminishing sine wave
after closure for several ms.
I've actually seen this
published and called bounce.
It wasn't mentioned how a
square wave bounce was
converted to a sine wave.
Once I switched to a small
battery on the contacts this
disappeared from the trace.
73& Hope your power is on,
Paul
PAUL HEWITT
WD7S PRODUCTIONS
QRO HOMEBREW COMPONENTS
http://wd7s.home.att.net
>
> Paul,
> -
> I did not make a
> formal record of my
> measurements, but
> I measured the
> mentioned Kilovac
> and similar Jennings
> relays with similar
> results similar to Rich's.
> -
> The contacts were
> made fast enough,
> the issue was
> the settling time
> "bounce". I was
> trying various
> speedup circuits.
> I use some very
> nice LeCroy and
> Tektronix Scopes.
> -
> Since I was only
> pulsing hv, I went
> with apt fets
> after the relays
> proved to be slower than my
> needs.
> -
> cheers
> skipp
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