Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!fluke!strong
From: strong@tc.fluke.COM (Norm Strong)
Newsgroups: sci.electronics
Subject: Re: Square to Sawtooth
Message-ID: <7518@fluke.COM>
Date: 31 Mar 89 19:27:38 GMT
References: <7476@thorin.cs.unc.edu> <65200002@hpl-opus.HP.COM> <1989Mar30.164612.28073@utzoo.uucp>
Sender: news@tc.fluke.COM
Organization: John Fluke Mfg. Co., Inc., Everett, WA
Lines: 20

In article <1989Mar30.164612.28073@utzoo.uucp> henry@utzoo.uucp (Henry Spencer) writes:
}In article <65200002@hpl-opus.HP.COM> jewett@hpl-opus.HP.COM (Bob Jewett) writes:
}>Find a VCO that has a unit-amplitude sawtooth as an auxiliary output.
}
}It's trivial to build such a thing, by the way:  an integrator integrating
}the input, a comparator for "reached the top", and a one-shot feeding an
}analog switch to reset the integrator.

Yes, the problem is trivial as stated.  Let's see if we can make it more
interesting:

	How would you make the circuit so that the sawtooth starts at zero on
the leading edge of the square wave, and reaches maximum just as the square
wave falls.  Let this be a steady state repetitive waveform.  Manual
adjustments are not permitted.  

Now, isn't that more interesting?
-- 

Norm   (strong@tc.fluke.com)