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Article #79Re: PWM, what's a cheap way ?
From: KEN E WILLMOTT
Date: Wed, 04 Nov 1992 13:57
Date: Wed, 04 Nov 1992 13:57
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I once built a PWM speed control out of op-amps. I recently drew up a better design, based on a single LM339 comparator. One amp produces a triangle wave, the other just compares the control signal to this wave. Get it? -Ken
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Newsgroups: comp.robotics,sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!utcsri!torn!newshub.ccs.yorku.ca!newshub.ariel.yorku.ca!cs911225 From: cs911225@ariel.yorku.ca (KEN E WILLMOTT) Subject: Re: PWM, what's a cheap way ? Message-ID: <1992Nov4.135753.2358@newshub.ariel.yorku.ca> Keywords: PWM Sender: news@newshub.ariel.yorku.ca (USENET News System) Organization: York University, Toronto, Canada References: <1992Nov2.091428.25136@hippo.ru.ac.za> <lfc4ojINNcog@exodus.Eng.Sun.COM> Distribution: global Date: Wed, 4 Nov 1992 13:57:53 GMT Lines: 6