This is a multi-part message in MIME format. --------------EB899D8766C664A92466F00B Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit --------------EB899D8766C664A92466F00B Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Content-Disposition: inline Return-Path: Received: from www.ezy.net.au ([203.220.72.229]) by priv-edtnes10-hme0.telusplanet.net (InterMail vM.5.01.04.01 201-253-122-122-101-20011014) with ESMTP id <20011229112409.JHQF20752.priv-edtnes10-hme0.telusplanet.net@www.ezy.net.au> for ; Sat, 29 Dec 2001 04:24:09 -0700 Received: from elpresid (242enas.nas.speedlink.com.au [203.220.73.242]) by www.ezy.net.au (8.11.0/8.11.0) with SMTP id fBTBFMc22420 for ; Sat, 29 Dec 2001 22:15:23 +1100 Message-ID: <3C2DA6D4.5D9D@ezy.net.au> Date: Sat, 29 Dec 2001 22:19:48 +1100 From: Roman Black Organization: BlackRobotics (Fastvid) X-Mailer: Mozilla 3.04Gold (Win95; I) MIME-Version: 1.0 To: dpharris@telus.net Subject: Re: [EE]: is it really not DC, so what can I do ? References: <002d01c18fbf$57dcd3e0$7903010a@admin> <00a201c18fc3$3f0918c0$0300a8c0@ASCIIWHITE> <000701c18fcd$399f66a0$7903010a@admin> <3C2CC41E.77CD2FC8@telus.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mozilla-Status2: 00000000 I'd liek to see it too. :o) -Roman David Harris wrote: > > Can we have the details? ie schematic? > Thanks, David > > Lawrence Lile wrote: > > > I built a nice little bench supply with a PIC running a P-Channel pass > > transistor, threw in an inductor and a capacitor and two pushbutton inputs > > to the PIC. The PIC senses output voltage, and turns the pass transistor on > > and off. The two pushbutton inputs run the setpoint up and down. A little > > digital panel meter serves as the interface, you just push the UP button if > > you want the voltage higher, etc. None of the part values seemed to be very > > critical, worked pretty good first time with junk parts off my bench. > > Of course there are 1000 circuits using LM317's plus pass transistors. I > > just wanted to build a switcher with a PIC in it, so I could slap a sticker > > on it saying "PIC INSIDE!" --------------EB899D8766C664A92466F00B-- -- 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