Thanks! I've looked at that and it appears similar in complexity (not much) to the existing 723 design. Harold On Tue, 23 Jan 2001 17:17:27 -0700 Dwayne Reid writes: > At 04:01 PM 1/23/01 -0800, Harold M Hallikainen wrote: > > I have a project that involves a variable shunt regulator > (10-15V, > >200mA). It SEEMS that it should be possible to use an LM 317 or 337 > wired > >in some manner to make this work, but I'm not seeing it. Anyone see > how > >this might be done? > > I don't see any easy way to use a linear pass regulator as a shunt > reg. But have you considered something like a TL431 with a boost > transistor? That beastie *is* a shunt reg and is both inexpensive > as well > as easy to use. > > dwayne > > > > Dwayne Reid > Trinity Electronics Systems Ltd Edmonton, AB, CANADA > (780) 489-3199 voice (780) 487-6397 fax > > Celebrating 17 years of Engineering Innovation (1984 - 2001) > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * > Do NOT send unsolicited commercial email to this email address. > This message neither grants consent to receive unsolicited > commercial email nor is intended to solicit commercial email. > > -- > http://www.piclist.com hint: The list server can filter out > subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics > > FCC Rules Online at http://hallikainen.com/FccRules Lighting control for theatre and television at http://www.dovesystems.com ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics