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 [DPRG] Re: DPRGlist Digest, Vol 69, Issue 20 Message index sorted by: [ date ] [ thread ] [ subject ] [ author ] Previous message: [DPRG] RE: DPRGlist Digest, Vol 69, Issue 20 Next message: [DPRG] PID Loop Question Subject: [DPRG] Re: DPRGlist Digest, Vol 69, Issue 20 From: Bill Cooke bcooke at cookedata.com Date: Tue Feb 23 13:05:44 CST 2010 ```embedded: > Message: 1 Date: Mon, 22 Feb 2010 12:34:02 -0600 From: "Quinones, > Jose" Subject: [DPRG] PID Loop Question To: > "dprglist at dprg.org" Message-ID: > <7B4574D56E4ADF438756313E9A172A8797F71B90 at dlee01.ent.ti.com> > Content-Type: text/plain; charset="us-ascii" > > 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. I'm no expert on PID, but a little warning. A correction can be large if applied longer, or if simply applied for the same time at a large magnitude. The effect of the correction's duration is a function of the device. Seven jabs doesn't always equal a right cross. -- Bill > > 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 ``` Previous message: [DPRG] RE: DPRGlist Digest, Vol 69, Issue 20 Next message: [DPRG] PID Loop Question Message index sorted by: [ date ] [ thread ] [ subject ] [ author ] More information about the DPRG mailing list