This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C23AD2.35556FD0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Ac/dc supplies: http://zzz1.net/rd/rd.asp?ZXU=1667&ZXD=9948 (Look at attached copy) Mike. > -----Original Message----- > From: pic microcontroller discussion list > [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Tal (Zapta) > Sent: Tuesday, July 30, 2002 6:54 AM > To: PICLIST@MITVMA.MIT.EDU > Subject: [EE]: [PIC]: PIC controlled power supply ? > > > Hello, > > I need to implement a DC power supply whose voltage is controlled > by a PIC (16F876). Ideally the power supply will provide 5 to 20 VDC > up to 4A but a more limited range of 12VDC to 20VDC may also work. > > Also, a small power supply of about a size of a notebook 'brick' is > preferred but larger ones will also be considered. > > This is for a limited series of commercial prototypes (about 5). > > One way to achieve that is to have a D/A (e.g. PWM) > controlled by the PIC > that generate the reference voltage to the power supply. > Another approach > may use > a digitally controlled power supply. > > Any idea how to implement it or where to get an off the shelf remote > controlled power supply will be greatly appreciated. > > Thanks, > > Tal > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > > ------=_NextPart_000_0001_01C23AD2.35556FD0 Content-Type: application/x-compressed; name="Ac-dc supplies.zip" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="Ac-dc supplies.zip" UEsDBBQAAAAIAAVMAy3ayWjtZC4AAGp2BAASAAAAQWMtZGMgc3VwcGxpZXMuaHRt7F3rcts6kv6/ VfsOmGxtdqZyYPMqknNsb8m2TqIcO/baysmenzAFSRyDhIYXO5r32PddkhIpkaJ5sWhbkjtVcRyC +AA0SHzdjW7w6C/nV2eDP6976Mvg8gJdfz+96J+hD/jw8Id8dnh4PjifFygHAhq4xPEs3+IOYYeH vW8fTv79347+gjHyyAMdopHLbRS47PivgqBrf5v4/vTvh4eUUdN3uWOZU5cPA9P3DkxuH95O+OM1 GdMD4k3/+7Z3NuhffTuWNUH4eH3Tv+yfH3/8zWL0G7Hpcff759uL7gEJxpIgSAjjk6OoS+HPXvf8 5GjQH1z0TnppM+h60c7R4bwo7ORlb9BFUYcw/WdgPRyfccenjo8HsylF5vw/xx98+tM/nPg2+xWZ E+J61D9+tJwhf/SwKKnihxQprXF5GwuncyAIB1In/CF8QE7U58+9b72b7uDq5uToMO5mWPX06vxP dDc+44y7x/8xiv9E1wfd04seMilj12Q4tJzxsYAeraE/Of4gCsJ/fkB33B1S91gIb0boaBDhLH69 if+NfjtHD11mjZ3jO+774TyQ+D+MjvwEqxNCnRz1Lz+jCbXGE/9YEtC8NgrvDgdTIELE+Jh/QJ5r 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