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[DPRG] PID Loop Question

Subject: [DPRG] PID Loop Question
From: Anton Olsen anton at antonolsen.com
Date: Mon Feb 22 12:52:30 CST 2010

Wikipedia has a pretty good article on PID loops.

http://en.wikipedia.org/wiki/PID_loop



On Mon, Feb 22, 2010 at 12:34 PM, Quinones, Jose <jquinones at ti.com> wrote:
> Hi Group,
>
>
>
> I am trying to get a better understanding of the PID Loop. I have some, but
> want to understand it as good as I understand tying up my shoes. I want this
> to be as clear in my head as it is counting from 1 to 10 in Spanish.
>
>
>
> So far, I think I understand the Proportional aspect this good. If the error
> is big, correct a lot. If the error is not so big, correct just a little
> bit.
>
>
>
> I think I have an idea of what Integral is. If the error has been big for a
> long time, correct for a longer period of time. If the error has not been
> too large for a long period of time, then apply a correction only for a
> small period of time.
>
>
>
> Not certain if I follow Derivative as well, but my impression is that it
> tells us how quick the error is changing and if so, then apply a correction.
>
>
>
> And then it comes to putting it all together and knowing which component
> caused which occurrence of what.
>
>
>
> I know there is a bunch of tutorials out there, but they are all of the
> style “if 1 + 1 = 2, what is the molecular constitution of binary star
> system XT394-MY if the two suns collapse at the neocortex of the meridian
> divesture?” In other words, WHAT???
>
>
>
> What explanations can you offer or what tutorials can you point me to?
> Thanks in advance for expanding my mind with your knowledge!
>
>
>
> Best regards,
>
>
>
> JIQ
>
>
>
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>



-- 
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