Are you trying to use a JFET ? Sadly, Gnucap 0.35 has no support for JFETs. But I think that the development version of Gnucap does, and I know that NGSpice supports JFETs. I recommend trying NGSpice.
On Tue, Jul 6, 2010 at 5:16 PM, Mogliii <[email protected]> wrote: > A bit better, but... > > Gnucap 0.35 > The Gnu Circuit Analysis Package > Never trust any version less than 1.0 > Copyright 1982-2006, Albert Davis > Gnucap comes with ABSOLUTELY NO WARRANTY > This is free software, and you are welcome > to redistribute it under certain conditions > according to the GNU General Public License. > See the file "COPYING" for details. > ************************************************************** > J1 1 3 4 JN > ^ ? illegal type > .MODEL JN NJF(BETA=1E-4 VTO=-7) > ^ ? not implemented > Q2.X1: can't find model: .1 > > > > > On 07/07/2010 12:11 AM, [email protected] wrote: >> >> In your schematic, you need to rename your LM317 from U1 to X1 . >> Spice expects that all subckt components' reference designators will >> start with 'X'. I think there is a gschem attribute which will rename >> the part from U... to X... during spice netlist generation, but I >> don't remember what attribute that is. The easiest thing is to just >> change the name in the schematic. >> >> On Tue, Jul 6, 2010 at 4:46 PM, Mogliii<[email protected]> wrote: >> >>> >>> OK, I got a bit closer to my aim. >>> >>> I found this very helpful page: http://www.brorson.com/gEDA/SPICE/t1.html >>> >>> Following this I made the following schematic: >>> http://users.ecs.soton.ac.uk/mets09r/test3.sch >>> >>> I copied the spice model I found here [1] into a subckt file >>> http://users.ecs.soton.ac.uk/mets09r/LM317.subckt >>> and gave the LM317 the following attributes: >>> device = LM317 (apparently not necessary) >>> refdes = U1 >>> value = LM317 (exactly the same as the .SUBCKT LM317 1 2 3 >>> in >>> spice file) >>> file = LM317.subckt (file with spice model is located in same >>> directory as sch file) >>> >>> Now when I load it in gspiceui the netlist finds the spicefile and >>> netlists >>> all. But when I do the simulation I get the following console output: >>> >>> Gnucap 0.35 >>> The Gnu Circuit Analysis Package >>> Never trust any version less than 1.0 >>> Copyright 1982-2006, Albert Davis >>> Gnucap comes with ABSOLUTELY NO WARRANTY >>> This is free software, and you are welcome >>> to redistribute it under certain conditions >>> according to the GNU General Public License. >>> See the file "COPYING" for details. >>> ************************************************************** >>> U1 3 2 1 LM317 >>> ^ ? need 1 more nodes >>> @@# >>> @@@incomplete:d_logic.cc:73:parse_spice >>> U1 3 2 1 LM317 >>> ^ ? need more nodes >>> U1 3 2 1 LM317 >>> ^ ? need and,nand,or,nor,xor,xnor,inv >>> J1 1 3 4 JN >>> ^ ? illegal type >>> .MODEL JN NJF(BETA=1E-4 VTO=-7) >>> ^ ? not implemented >>> model is not a logic family (LOGIC) >>> >>> >>> The J1 seems to be the problem? >>> >>> Now my questions: >>> 1) Do I have to rewrite the spice model to work with gnucap? >>> 2) gEDA includes the LM317 as symbol, but apparently no spice model? >>> Is >>> this correct? >>> >>> >>> I appreciate your help in advance >>> >>> >>> [1] >>> >>> http://groups.google.com/group/sci.electronics.cad/browse_frm/thread/fbf84f10d86a4d23/e66bf3354362d541?q=LM317+spice+model&rnum=3#e66bf3354362d541 >>> >>> >>> On 07/05/2010 08:48 AM, Mogliii wrote: >>> >>>> >>>> Since attachments seem not to be allowed on this mailinglist :(( >>>> (compare >>>> my previous email) so I uploaded them. >>>> >>>> 1) the spicelib thing has been already resolved. Use scones instead of >>>> make. >>>> >>>> 3) Schematics >>>> http://users.ecs.soton.ac.uk/mets09r/current-source.sch >>>> >>>> Explanation of circuit >>>> http://users.ecs.soton.ac.uk/mets09r/lm317.png >>>> >>>> >>>> Any help appreciated >>>> >>>> _______________________________________________ >>>> Help-gnucap mailing list >>>> [email protected] >>>> http://lists.gnu.org/mailman/listinfo/help-gnucap >>>> >>>> >>> >>> _______________________________________________ >>> Help-gnucap mailing list >>> [email protected] >>> http://lists.gnu.org/mailman/listinfo/help-gnucap >>> >>> >> >> _______________________________________________ >> Help-gnucap mailing list >> [email protected] >> http://lists.gnu.org/mailman/listinfo/help-gnucap >> >> > > > _______________________________________________ > Help-gnucap mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/help-gnucap > _______________________________________________ Help-gnucap mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gnucap
