1. Home
  2. Electronics Design
  3. Tastenentprellung

Tastenentprellung

Hier ist ein guter Artikel von Jack Ganssle dazu:

--
Reinhardt
Reply to
Reinhardt Behm
Loading thread data ...

Sorry wrong group.

--
Reinhardt
Reply to
Reinhardt Behm

n.

Maybe, but nice article on modern switch debouncing--thanks!

(Oder soll ich sag' ?)

Cheers, James Arthur

Reply to
dagmargoodboat

It was cited in this group.

Better

--
Reinhardt
Reply to
Reinhardt Behm

For the friends of the 555 timer IC out there, here's the circuit of a

555 based key debouncer (graphics copy-pasted out of the paper above and from the Elektronik-Kompendium website):

formatting link

Note the wide hysteresis of the 555 (1/3 Vcc). That's much larger than "typical" Schmitt triggers provide, in a noisy circuit this can give a wider safety margin.

Regards Dimitrij

Reply to
Dimitrij Klingbeil

See NoiseBlank.pdf on the S.E.D/Schematics Page of my website... predates the utah.edu paper first pub date by 14 months. ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142     Skype: skypeanalog  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.
Reply to
Jim Thompson

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.