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PSPICE A/D simulation problem

Discussion in 'Electronic Design' started by RsK, Apr 10, 2007.

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  1. RsK

    RsK Guest

    Hi anyone can see the pspice file and please tell me how to remove the
    error it displays while simulation?

    regards,
    rizwan

    *
    ..MODEL QBC337-25 NPN(
    + IS = 4.13E-14
    + NF = 0.9822
    + ISE = 3.534E-15
    + NE = 1.35
    + BF = 292.4
    + IKF = 0.9
    + VAF = 145.7
    + NR = 0.982
    + ISC = 1.957E-13
    + NC = 1.3
    + BR = 23.68
    + IKR = 0.1
    + VAR = 20
    + RB = 60
    + IRB = 0.0002
    + RBM = 8
    + RE = 0.1129
    + RC = 0.25
    + XTB = 0
    + EG = 1.11
    + XTI = 3
    + CJE = 3.799E-11
    + VJE = 0.6752
    + MJE = 0.3488
    + TF = 5.4E-10
    + XTF = 4
    + VTF = 4.448
    + ITF = 0.665
    + PTF = 90
    + CJC = 1.355E-11
    + VJC = 0.3523
    + MJC = 0.3831
    + XCJC = 0.455
    + TR = 3E-08
    + CJS = 0
    + VJS = 0.75
    + MJS = 0.333
    + FC = 0.643)
    *
    *Resistors
    *
    R1 2 4 56k
    R2 2 0 22k
    RB 2 3 180
    RC 4 5 5.1k
    RE 6 0 3.3k
    * Load
    RL 8 0 1k
    CL 5 8 10u
    *
    *Capacitors
    *
    C1 1 2 330n
    CC 3 5 470p
    CE 6 0 220u
    VCC 4 0 15
    *
    ..AC DEC 10 10 100k
    ..PROBE
    ..END
     
  2. Jim Thompson

    Jim Thompson Guest

    Top posting to be as big an annoyance as possible ;-)

    (1) You show a model of an NPN. But there is no NPN in the netlist.

    (2) What does the error message say?


    ...Jim Thompson
     
  3. Hello rizwan,

    I don't know what PSPICE reports, but the error report from
    LTspice is crystal clear if you know SPICE.

    WARNING: Node 1 is floating.
    WARNING: Less than two connections to node 1. This node is used by C1.
    ---> one pin of C1 is not connected

    No AC stimulus found:
    Set the value of a current or voltage source to "AC 1."
    to make it behave as a signal generator for AC analysis.
    ---> An AC-analysis requires at least one voltage source with an "AC"
    definiton.


    This doesn't matter, but why do you have a transistor model when you don't
    use a transistor?

    Best regards,
    Helmut
     
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