Howdy,
A good debouncing and flip/flop setup can be easily
found in "The Cmos Cookbook. It seems you are going to
have to debounce and eliminate one of the pulses. All
of this is covered in the book. It also explains "half
monostables", which might suit your purpose nicely.
rig
--- sasami@... wrote:
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A good debouncing and flip/flop setup can be easily
found in "The Cmos Cookbook. It seems you are going to
have to debounce and eliminate one of the pulses. All
of this is covered in the book. It also explains "half
monostables", which might suit your purpose nicely.
rig
--- sasami@... wrote:
> What you are experiencing is called switch bounce.http://www.cgs.synth.net/modules/cgs24_gatetotrigger.html
> Try wiring a 10n (0.01)
> from the input to ground.
>
> Ken
>
> >I have to admit I am a bit confused about this
> issue right now.
> >After BigRig's advice I tried this out with a few
> different switches
> >and the circuit outputs a trigger upon closing AND
> opening of the
> >switch, whenther its a toggle switch or a momentar
> button OR a piezo
> >switch. Any way to prevent this double triggering?
> >
> >--- In cgs_synth@yahoogroups.com, "rafe127"
> <rafe127@...> wrote:
> >>
> >>
> >> Crumbs....
> >>
> >> Is there no way to get a good clean timely click
> out of a piezo
> >> switch? Will it always only deliver upon
> "release"?
> >>
> >> If I tap it quickly, then it comes close to the
> behavior I want,
> >> although it sometime "double clicks"
> >>
> >> --- In cgs_synth@yahoogroups.com, "Mark Rauch"
> <billbigrig@> wrote:
> >> >
> >> > Howdy,
> >> >
> >> > Yes, a peizu relies onpressure to genreta
> voltage. When you
> >> pushthe
> >> > switch you cock thr pistol". When you release,
> the kintic energy
> >of
> >> > dtriking the crystal emits a voge.
> >> > RRig
> >> >
> >> > --- In cgs_synth@yahoogroups.com, "rafe127"
> <rafe127@> wrote:
> >> > >
> >> > >
> >> > > Hi everybody...
> >> > >
> >> > > I build half of the gate to trigger converter
> just now in an
> >> attempt
> >> > > to make a nice clean click sound. I am using
> one of these
> >> > switches:
> >> > >
> >> > >
> http://www.piezoswitch.com/about_switches.html
> >> > >
> >> > > ...and the switch is a momentary Normally
> Open SPST switch that
> >> > passes
> >> > > +9V from a regular 9V battery when I
> "depresss" it. The +9V is
> >> > going
> >> > > to the Gate input of the circuit here:
> >> > >
> >> > >
>
> >> > >http://obsoleteconsole.blogspot.com/2007/08/clicks.html#links
> >> > > It ALMOST works except that it seems to send
> a trigger only
> >when I
> >> > > release the button... Any obvious reason
> this could be
> >> happening?
> >> > > The switch itself has some mysterious potted
> electronics in it
> >> which
> >> > > may be influencing things... is something
> funny because I only
> >> built
> >> > > half of it?
> >> > >
> >> > > Also, the shape of the click isn't sounding
> quite right:
> >> > >
> >> > >
>
> >> > >_______________________________________________________________________
> >> > > Any advice about shaping the trigger output a
> little more?
> >> > >
> >> > > Thanks for any help,
> >> > > Rafael
> >> > >
> >> >
> >>
> >
> >
> >
> >
> >The CGS Modular Synth home page:
> http://www.cgs.synth.net/
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
>
> Ken Stone sasami@...____________________________________________________________________________________
> Modular Synth PCBs for sale
> <http://www.cgs.synth.net/>
> Australian Miniature Horses & Ponies
> <http://www.blaze.net.au/~sasami/>
>
>
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