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Old 2nd September 2008, 07:03 AM   (permalink)
Default What is Schmitt trigger

Reference:www.abcofelectronics.com/schmitt_trigger.htm
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Old 2nd September 2008, 07:32 AM   (permalink)
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Originally Posted by Vijayendra2 View Post
Reference:www.abcofelectronics.com/schmitt_trigger.htm
hi,

I Googled: What is a schmitt trigger

http://www.electronics-radio.com/art...tt-trigger.php

This and many more.
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Old 2nd September 2008, 06:21 PM   (permalink)
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Originally Posted by Vijayendra2 View Post
Reference:www.abcofelectronics.com/schmitt_trigger.htm
It "fires" so it cannot be "teased" by a slow moving waveform, kind of like a snap-action wall switch.
Analysis of such a circuit is kind of tricky.
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Old 3rd September 2008, 02:44 AM   (permalink)
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It "fires" so it cannot be "teased" by a slow moving waveform, kind of like a snap-action wall switch.
Analysis of such a circuit is kind of tricky.
Nah! it's a piece of cake. Input threshold depends on output voltage. What could be more straightforward. Now the strange attractor, there is a problem with some complexity, How about a Wiener process which is everywhere continuous, but nowhere differentiable?
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Old 3rd September 2008, 03:03 AM   (permalink)
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Nah! it's a piece of cake. Input threshold depends on output voltage. What could be more straightforward. Now the strange attractor, there is a problem with some complexity, How about a Wiener process which is everywhere continuous, but nowhere differentiable?
Nah, some have said The Weenie Process, as we fondly refer to it here in Maryland, is "almost surely" continuous.

And I think the ancient Chinese curse "May you live in interesting times" was the precursor to modern day chaos theory.

Last edited by Willbe; 3rd September 2008 at 03:09 AM.
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Old 3rd September 2008, 04:00 AM   (permalink)
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what the heck!

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Old 3rd September 2008, 04:22 AM   (permalink)
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Originally Posted by Vijayendra2 View Post
Reference:www.abcofelectronics.com/schmitt_trigger.htm
A schmitt trigger is a device or circuit that is used for switching with built in hysteresis. What Papabravo explained is accurate (at least the first half seeing I haven't a clue what he was saying in the 2nd). Take a comparator designed as a relaxation oscillator (astable) with a feedback resistor to the reference pin, and viola, you have a reference that fluctuates to two different states depending on whether the output is high or low.
You may find schmitt triggers as part of a processor watchdog circuit to reset the system in the absense of an activity pulse.
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Last edited by rezer; 3rd September 2008 at 04:24 AM.
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Old 3rd September 2008, 05:35 AM   (permalink)
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A schmitt trigger is a device or circuit that is used for switching with built in hysteresis. What Papabravo explained is accurate (at least the first half seeing I haven't a clue what he was saying in the 2nd). Take a comparator designed as a relaxation oscillator (astable) with a feedback resistor to the reference pin, and viola, you have a reference that fluctuates to two different states depending on whether the output is high or low.
You may find schmitt triggers as part of a processor watchdog circuit to reset the system in the absense of an activity pulse.
OK, literally I was saying that the analysis of stochastic differential equations and chaotic systems are things I consider tricky. Schmidt Triggers are deterministic and in my estimation -- not tricky at all.
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Old 3rd September 2008, 06:00 AM   (permalink)
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OK, literally I was saying that the analysis of stochastic differential equations and chaotic systems are things I consider tricky. Schmidt Triggers are deterministic and in my estimation -- not tricky at all.
Ah. Now wasn't that easier to say?
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Old 3rd September 2008, 10:55 AM   (permalink)
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Ah. Now wasn't that easier to say?
But he already said that.


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Old 3rd September 2008, 12:13 PM   (permalink)
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But he already said that.


Torben
Perhaps I should have used a smiley face to indicate the humor.
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