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Reply-To: "Kevin Aylward"
From: "Kevin Aylward"
References: <email@example.com> <3D851052.693A7E50@webaccess.net> <%_lh9.25414$S32.firstname.lastname@example.org> <3D85F5EC.FB883081@webaccess.net>
Subject: Re: The First NFB theory
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Mon, 16 Sep 2002 16:43:49 +0100
NNTP-Posting-Date: Mon, 16 Sep 2002 16:43:59 BST
"Chuck Simmons" wrote in message
> Mike wrote:
> > "Chuck Simmons" wrote in message
> > news:3D851052.693A7E50@webaccess.net...
> > > Martin Griffith wrote:
> > > >
> > > > More old stuff on my cobbled together site, a copy of a copy of
> > > > of the Original negative feedback theory by H.S..Black
> > > >
> > > > http://martingriffith.users.btopenworld.com/SCANS.HTM
> > > >
> > > > enjoy
> > > >
> > > > Martin
> > >
> > > Curious. The ancient Egyptians knew a little about negative
> > > The earliest detailed paper on the subject of feedback control is
> > > James Clerk Maxwell as far as I know. It is considered the start
> > > feedback control as an exact science if you will. James Watt, of
> > > had used negative feedback but Maxwell studied stability.
> > > paper contains the basics of feedback control that undergraduates
> > > today in their EE curricula. See if you can find it. It is a good
> > > and a lot of engineers today do not go beyond Maxwell's work when
> > > design opamp circuits.
> > "Maxwell's paper" ??? Which paper?
> > -- Mike --
> "On Governors" or something like that. 1876 I think. It gives the
> stability criterion that all of the poles of the characterstic
> of the closed loop system must be located in the left half plane.
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