No subject

Studio 271 Productions studio271 at mail.ev1.net
Sat Apr 20 21:00:40 CEST 2002


Maybe I'm missing the point, but Maxim (http://www.maxim-ic.com) has 
switch debouncer ICs... Haven't tried them out, though, because when 
I sent for some samples, they gave me all SMT on accident (...or WAS 
it?...) If you decide to use then for some reason, could you tell me 
how well they work?...

You could also ust use a magnet and hall effect sensor to make a 
bouncless switch... I've never fully understood why technology wishes 
to comphensate for its problems instead of just correcting them...

-271
>     What I do to debounce switches is use an RC filter with a 74HC14 schmitt
>trigger.  You need the hysteresis to complete eliminate the bouncing.
>
>Peter Grenader wrote:
>
>>  I'm trying to use a mechanical switch as an option to advance a sequencer
>>  count (manual tuning).  I'm getting about 15 million steps for each touch of
>>  the switch due to it bouncing.  I don't want to run this into an active one
>>  shot, for reasons I don't need to go into.  Was hoping I could make a real
>>  simple passive rc on the faceplate, at the switch itself, to take care of
>>  it.  Tried hanging one at the wiper of the switch, didn't work.  POssibly my
>>  values didn't cut it.
>>
>>  any suggestions?
>>
>>  thanks in advance,
>>
>>  Peter
>
>--
>  -Jim
>------------------------------------------------
>* Visit:http://www.silcom.com/~patchell/
>*-----------------------------------------------
>*I'm sure glad Merry Christmas comes just once a year
>* -Yogi Yorgensen
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