Hobby Electronics Basics Monostable multivibrator

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Subject Author Date
Monostable multivibrator Neutrino Cruiser 02-28-07
Posted by Neutrino Cruiser on February 28, 2007, 3:42 pm
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Does anyone know of how I can relate the importance of the monostable
multivibrator to day-to-day applications? I only know of its
application in rising/falling edge detectors


Posted by John Fields on February 28, 2007, 4:50 pm
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On 28 Feb 2007 12:42:32 -0800, "Neutrino Cruiser"

>Does anyone know of how I can relate the importance of the monostable
>multivibrator to day-to-day applications? I only know of its
>application in rising/falling edge detectors

---
LOL, Google "555"! :-)


--
JF

Posted by JeffM on February 28, 2007, 10:28 pm
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Neutrino Cruiser wrote:
>Does anyone know of how I can relate the importance
>of the monostable multivibrator to day-to-day applications?
>I only know of its application in rising/falling edge detectors

If you think *detection* is the most important part of that app,
you have missed the entire point.
http://www.google.com/search?num=100&q=monostable+stretcher


Posted by Mr Grab on March 3, 2007, 11:55 pm
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Neutrino Cruiser skrev:
> Does anyone know of how I can relate the importance of the monostable
> multivibrator to day-to-day applications? I only know of its
> application in rising/falling edge detectors
>

A mm. is typically used in pulse generators that is capable to vary its
pulse width while the frequency remains the same. That is, if the mm. is
capable to vary the hold time.
Or, if the mm has a fixed time, the output frequency from the pulse
generator may vary, and therefore the duty cycle 'll vary.

Put simply:
Pulse generator -> Monostable M. -> output

And you are likely to put an schmitt trigger just after the mm. to get a
clean pulse.

Some useful links:

duty cycle
http://en.wikipedia.org/wiki/Duty_cycle
http://www.idcmotion.com/pdf/9007.pdf

Monostable Multivibrator
http://en.wikipedia.org/wiki/Multivibrator
http://www.play-hookey.com/digital/experiments/rtl_monostable.html


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