Re: gEDA-user: cant connect model to transistor.

[Piter_ <x.piter@xxxxxxxxx>]

   Hi all.
   Thanks.
   spice-sdb fixed the problem. In addition I had a mistake in path to
   model file.
   But I had to rename models to Q2N2222.
   If  model name was 2N2222 ia had mesage:
   Warning: singular matrix: check nodes 2N2222  and 2N2222.
   And it was running out of iterations.
   here is the working netlist :-).
   * gnetlist -g spice-sdb -o [1]basic2n2222a.net basic2n2222a.sch
   *********************************************************
   * Spice file generated by gnetlist                      *
   * spice-sdb version 4.28.2007 by SDB --                 *
   * provides advanced spice netlisting capability.        *
   * Documentation at [2]http://www.brorson.com/gEDA/SPICE/   *
   *********************************************************
   *vvvvvvvv  Included SPICE model from
   /home/petro/GEDA/PROJECTS/BASIC_2N2222/modells/2N2222.mod vvvvvvvv
   .model Q2N2222 NPN(IS=1E-14 VAF=100
   +   BF=200 IKF=0.3 XTB=1.5 BR=3
   +   CJC=8E-12 CJE=25E-12 TR=100E-9 TF=400E-12
   +   ITF=1 VTF=2 XTF=3 RB=10 RC=3 RE=1 Vceo=30 Icrating=800m
   mfg=Philips)
   *^^^^^^^^  End of included SPICE model from
   /home/petro/GEDA/PROJECTS/BASIC_2N2222/modells/2N2222.mod ^^^^^^^^
   *
   *==============  Begin SPICE netlist of main design ============
   Q1 n2 n1 0 Q2N2222
   Vbe n1 0 DC 0.7
   Vce n2 0 DC 1
   **added
   .control by hand
   dc Vce 0 6V 0.001V
   plot -i(Vce)
   **the end of addition
   .endc
   .end

   On Thu, Jul 16, 2009 at 12:34 AM, John Doty <[3]jpd@xxxxxxxxx> wrote:

   On Jul 15, 2009, at 7:35 AM, Piter_ wrote:
   > now if i run:
   >    gnetlist -g spice -o [1][4]basic2n2222.net basic2n2222.sch
   >    I get this net-file:
   >    * Spice netlister for gnetlist
   >    V2 n1 0 Vbe
   >    V1 n2 0 Vce
   >    Q1 n2 n1 0 <No valid value attribute found>
   >    A1 <No valid value attribute found>
   >    .END
   >    What have i done wrong?

     You're using the old SPICE netlist backend. Been years since I used
     it, so I don't remember its needs, and I don't know where to find
     any
     documentation. Use the newer spice-sdb back end. See
     [5]www.brorson.com/
     gEDA/SPICE/intro.html for details.
     Or try Anthony's more specialized netlister, let us know how it
     works.
     John Doty              Noqsi Aerospace, Ltd.
     [6]http://www.noqsi.com/
     [7]jpd@xxxxxxxxx

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References

   1. http://basic2n2222a.net/
   2. http://www.brorson.com/gEDA/SPICE/
   3. mailto:jpd@xxxxxxxxx
   4. http://basic2n2222.net/
   5. http://www.brorson.com/
   6. http://www.noqsi.com/
   7. mailto:jpd@xxxxxxxxx
   8. mailto:geda-user@xxxxxxxxxxxxxx
   9. http://www.seul.org/cgi-bin/mailman/listinfo/geda-user


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