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I got a problem in OrCAD Pspice

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ghost411

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I got a problem in OrCAD Pspice ,I really need you help !!
The error code is :

Code: 
**** 05/20/14 13:05:05 ********* PSpice 9.2 (Mar 2000) ******** ID# 1 ********

 ** Profile: "SCHEMATIC1-bai 1"  [ D:\Hoc tap\ve mach orcad\do an tot nghiep-schematic1-bai 1.sim ] 


 ****     CIRCUIT DESCRIPTION


******************************************************************************




** Creating circuit file "do an tot nghiep-schematic1-bai 1.sim.cir" 
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS

*Libraries: 
* Local Libraries :
* From [PSPICE NETLIST] section of C:\Program Files\Orcad\PSpice\PSpice.ini file:
.lib "nom.lib" 

*Analysis directives: 
.DC LIN V_VN1 -10 15 1 
.PROBE V(*) I(*) W(*) D(*) NOISE(*) 
.INC ".\do an tot nghiep-SCHEMATIC1.net" 



**** INCLUDING "do an tot nghiep-SCHEMATIC1.net" ****
* source DO AN TOT NGHIEP
X_XM1         0 Y Y 0 N03792 0 N02122 N02654 AD633/AD
X_XM2         Z 0 Y 0 N03792 0 N04033 N02654 AD633/AD
R_R2         N02750 N02683  100k  
R_R1         N02683 Y  100k  
R_R3         N02783 N02750  59.7k  
C_C1         X N02783  1n  
V_VP1         N02654 0 15Vdc
X_U1C         0 N02915 N02654 N03792 Y TL084
R_R4         X N02783  200k  
R_R5         N04033 N02783  40k  
X_U1B         0 N02849 N02654 N03792 N02882 TL084
V_VN1         0 N03792 15Vdc
R_R6         N02915 N02882  400k  
X_U2A         0 N02783 N02654 N03792 X TL084
C_C2         Y N02915  1n  
R_R7         Z N02161  400k  
C_C3         Z N02161  1n  
R_R8         N02161 N02122  40k  
X_U1A         0 N02683 N02654 N03792 N02750 TL084
R_R9         N02849 X  100k  
X_U1D         0 N02161 N02654 N03792 Z TL084
R_R10         N02882 N02849  100k  

**** RESUMING "do an tot nghiep-schematic1-bai 1.sim.cir" ****
.END

**** 05/20/14 13:05:05 ********* PSpice 9.2 (Mar 2000) ******** ID# 1 ********

 ** Profile: "SCHEMATIC1-bai 1"  [ D:\Hoc tap\ve mach orcad\do an tot nghiep-schematic1-bai 1.sim ] 


 ****     Diode MODEL PARAMETERS


******************************************************************************




               X_XM1.DX        X_XM2.DX        
          IS    1.000000E-15    1.000000E-15 


               X_U1C.x_tl084.dx 
          IS  800.000000E-18 
          RS    1            


               X_U1C.x_tl084.dy 
          IS  800.000000E-18 
          RS    1.000000E-03 
         CJO   10.000000E-12 


               X_U1B.x_tl084.dx 
          IS  800.000000E-18 
          RS    1            


               X_U1B.x_tl084.dy 
          IS  800.000000E-18 
          RS    1.000000E-03 
         CJO   10.000000E-12 


               X_U2A.x_tl084.dx 
          IS  800.000000E-18 
          RS    1            


               X_U2A.x_tl084.dy 
          IS  800.000000E-18 
          RS    1.000000E-03 
         CJO   10.000000E-12 


               X_U1A.x_tl084.dx 
          IS  800.000000E-18 
          RS    1            


               X_U1A.x_tl084.dy 
          IS  800.000000E-18 
          RS    1.000000E-03 
         CJO   10.000000E-12 


               X_U1D.x_tl084.dx 
          IS  800.000000E-18 
          RS    1            


               X_U1D.x_tl084.dy 
          IS  800.000000E-18 
          RS    1.000000E-03 
         CJO   10.000000E-12 


**** 05/20/14 13:05:05 ********* PSpice 9.2 (Mar 2000) ******** ID# 1 ********

 ** Profile: "SCHEMATIC1-bai 1"  [ D:\Hoc tap\ve mach orcad\do an tot nghiep-schematic1-bai 1.sim ] 


 ****     BJT MODEL PARAMETERS


******************************************************************************




               X_XM1.QX        X_XM2.QX        
               NPN             NPN             
          IS  100.000000E-18  100.000000E-18 
          BF   10.000000E+03   10.000000E+03 
          NF    1               1            
          BR    1               1            
          NR    1               1            
          CN    2.42            2.42         
           D     .87             .87         


**** 05/20/14 13:05:05 ********* PSpice 9.2 (Mar 2000) ******** ID# 1 ********

 ** Profile: "SCHEMATIC1-bai 1"  [ D:\Hoc tap\ve mach orcad\do an tot nghiep-schematic1-bai 1.sim ] 


 ****     Junction FET MODEL PARAMETERS


******************************************************************************




               X_U1C.x_tl084.jx 
               NJF             
         VTO   -1            
        BETA  984.200000E-06 
          IS    2.500000E-12 


               X_U1B.x_tl084.jx 
               NJF             
         VTO   -1            
        BETA  984.200000E-06 
          IS    2.500000E-12 


               X_U2A.x_tl084.jx 
               NJF             
         VTO   -1            
        BETA  984.200000E-06 
          IS    2.500000E-12 


               X_U1A.x_tl084.jx 
               NJF             
         VTO   -1            
        BETA  984.200000E-06 
          IS    2.500000E-12 


               X_U1D.x_tl084.jx 
               NJF             
         VTO   -1            
        BETA  984.200000E-06 
          IS    2.500000E-12 


ERROR -- Convergence problem in DC sweep


  Last node voltages tried were:

 NODE   VOLTAGE     NODE   VOLTAGE     NODE   VOLTAGE     NODE   VOLTAGE


(    X)    8.3718  (    Y)    8.3718  (    Z)    8.3718  (N02122)    9.4152     

(N02161)    9.3204 (N02654)   11.9920 (N02683)    8.3718 (N02750)    8.3718     

(N02783)    8.9295 (N02849)    8.3718 (N02882)    8.3718 (N02915)    8.3718     

(N03792)    7.9946 (N04033)    9.4148 (X_XM1.10)     .0040                      

(X_XM1.11)    4.1879                  (X_XM1.12)    9.8415                      

(X_XM1.13)    9.5536                  (X_XM1.14)   10.4330                      

(X_XM1.15)  -22.4020                  (X_XM1.16)    7.9893                      

(X_XM1.20)    8.3757                  (X_XM1.21)    4.1879                      

(X_XM1.22)   10.1290                  (X_XM1.23)    9.5536                      

(X_XM1.24)   10.4330                  (X_XM1.25)  -22.4020                      

(X_XM1.26)    7.9893                  (X_XM1.32)   10.1330                      

(X_XM1.33)    9.5536                  (X_XM1.34)   10.4330                      

(X_XM1.40)    8.3050                  (X_XM1.54)    7.2875                      

(X_XM1.55)    9.8160                  (X_XM1.56)   11.6230                      

(X_XM1.59)    8.3090                  (X_XM1.60)    9.4283                      

(X_XM1.61)    7.6501                  (X_XM1.62)    9.9933                      

(X_XM1.63)    8.5224                  (X_XM1.64)   11.4640                      

(X_XM1.65) 1.602E+06                  (X_XM1.66)    9.5914                      

(X_XM1.67) 1.281E+06                  (X_XM1.68)    0.0000                      

(X_XM1.69)    9.2701                  (X_XM1.70)    9.9709                      

(X_XM1.71)    8.8596                  (X_XM1.72)    9.4152                      

(X_XM1.73)    8.7117                  (X_XM1.74)    7.9893                      

(X_XM1.75)    7.9893                  (X_XM2.10)    8.3757                      

(X_XM2.11)    4.1879                  (X_XM2.12)   10.1290                      

(X_XM2.13)    9.5536                  (X_XM2.14)   10.4330                      

(X_XM2.15)  -22.4020                  (X_XM2.16)    7.9893                      

(X_XM2.20)    8.3757                  (X_XM2.21)    4.1879                      

(X_XM2.22)   10.1290                  (X_XM2.23)    9.5536                      

(X_XM2.24)   10.4330                  (X_XM2.25)  -22.4020                      

(X_XM2.26)    7.9893                  (X_XM2.32)   10.1330                      

(X_XM2.33)    9.5536                  (X_XM2.34)   10.4330                      

(X_XM2.40)    8.3540                  (X_XM2.54)    7.3114                      

(X_XM2.55)    9.8399                  (X_XM2.56)   11.5990                      

(X_XM2.59)    8.3580                  (X_XM2.60)    9.4286                      

(X_XM2.61)    7.6975                  (X_XM2.62)    9.9933                      

(X_XM2.63)    8.5224                  (X_XM2.64)   11.4640                      

(X_XM2.65) 1.602E+06                  (X_XM2.66)    9.5914                      

(X_XM2.67) 1.281E+06                  (X_XM2.68)    0.0000                      

(X_XM2.69)    9.2701                  (X_XM2.70)    9.9704                      

(X_XM2.71)    8.8592                  (X_XM2.72)    9.4148                      

(X_XM2.73)    8.7116                  (X_XM2.74)    7.9893                      

(X_XM2.75)    7.9893                  (X_XM1.100)    7.9893                     

(X_XM2.100)    7.9893                 (X_U1A.x_tl084.6)   15.0440               

(X_U1A.x_tl084.7)    5.8297           (X_U1A.x_tl084.8)    5.8297               

(X_U1A.x_tl084.9)    0.0000           (X_U1B.x_tl084.6)   15.0440               

(X_U1B.x_tl084.7)    5.8297           (X_U1B.x_tl084.8)    5.8297               

(X_U1B.x_tl084.9)    0.0000           (X_U1C.x_tl084.6)   15.0440               

(X_U1C.x_tl084.7)    5.8297           (X_U1C.x_tl084.8)    5.8297               

(X_U1C.x_tl084.9)    0.0000           (X_U1D.x_tl084.6)   15.1340               

(X_U1D.x_tl084.7)    5.8297           (X_U1D.x_tl084.8)    5.8297               

(X_U1D.x_tl084.9)    0.0000           (X_U2A.x_tl084.6)   15.0970               

(X_U2A.x_tl084.7)    5.8297           (X_U2A.x_tl084.8)    5.8297               

(X_U2A.x_tl084.9)    0.0000           (X_U1A.x_tl084.10)    8.9345              

(X_U1A.x_tl084.11)   11.4370          (X_U1A.x_tl084.12)   11.9920              

(X_U1A.x_tl084.53)   10.7930          (X_U1A.x_tl084.54)    9.1938              

(X_U1A.x_tl084.90)  -40.6460          (X_U1A.x_tl084.91)   39.9730              

(X_U1A.x_tl084.92)  -39.9730          (X_U1A.x_tl084.99)    7.9893              

(X_U1B.x_tl084.10)    8.9345          (X_U1B.x_tl084.11)   11.4370              

(X_U1B.x_tl084.12)   11.9920          (X_U1B.x_tl084.53)   10.7930              

(X_U1B.x_tl084.54)    9.1938          (X_U1B.x_tl084.90)  -40.6460              

(X_U1B.x_tl084.91)   39.9730          (X_U1B.x_tl084.92)  -39.9730              

(X_U1B.x_tl084.99)    7.9893          (X_U1C.x_tl084.10)    8.9345              

(X_U1C.x_tl084.11)   11.4370          (X_U1C.x_tl084.12)   11.9920              

(X_U1C.x_tl084.53)   10.7930          (X_U1C.x_tl084.54)    9.1938              

(X_U1C.x_tl084.90)  -40.6460          (X_U1C.x_tl084.91)   39.9730              

(X_U1C.x_tl084.92)  -39.9730          (X_U1C.x_tl084.99)    7.9893              

(X_U1D.x_tl084.10)    9.8818          (X_U1D.x_tl084.11)   11.4340              

(X_U1D.x_tl084.12)   11.9920          (X_U1D.x_tl084.53)   10.7930              

(X_U1D.x_tl084.54)    9.1938          (X_U1D.x_tl084.90)  -40.6460              

(X_U1D.x_tl084.91)   39.9730          (X_U1D.x_tl084.92)  -39.9730              

(X_U1D.x_tl084.99)    7.9893          (X_U2A.x_tl084.10)    9.4915              

(X_U2A.x_tl084.11)   11.4350          (X_U2A.x_tl084.12)   11.9920              

(X_U2A.x_tl084.53)   10.7930          (X_U2A.x_tl084.54)    9.1938              

(X_U2A.x_tl084.90)  -40.6460          (X_U2A.x_tl084.91)   39.9730              

(X_U2A.x_tl084.92)  -39.9730          (X_U2A.x_tl084.99)    7.9893

These supply currents failed to converge:

I(V_VP1) = 10.00GA \ 10.00GA
I(V_VN1) = 10.00GA \ 10.00GA
Click to expand...

and this is circuit diagrams

6994926700_1400566747.jpg


Please,give me a hand,thanks a lot
 
Last edited by a moderator:

Looks like a supply short. May be a problem with the multiplier model pin order?
 

Diode model used in circuit seems to be creating trouble, Diode Model DX does not have any resistance (Model Parameter RS) defined, which is equivalent of making it R=0 for this device. Such models are hard to converg. I tweaked this model to have realistic value RS=100U and relaxed couple of other simulator options and it works for me. Below is the output of your design

You may want to upgrade to latest version of OrCAD PSpice Lite to use all the options I have used. You would not get DIODERS in Version 9.0. You can download the latest free version of OrCAD PSpice from

https://www.cadence.com/products/orcad/Pages/orcaddownloads.aspx


**** 05/25/14 12:35:40 ***** PSpice 16.6.0 (October 2012) ***** ID# 0 ********

**


**** CIRCUIT DESCRIPTION


******************************************************************************



** Creating circuit file "do an tot nghiep-schematic1-bai 1.sim.cir"
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS

*Libraries:
* Local Libraries :
* From [PSPICE NETLIST] section of C:\Program Files\Orcad\PSpice\PSpice.ini file:
.lib "nom.lib"

*Analysis directives:
.DC LIN V_VN1 -10 15 1
.PROBE V(*) I(*) W(*) D(*) NOISE(*)
.OPTION STEPGMIN DIODERS= 1.0E-4 ITL2=500




**** INCLUDING "do an tot nghiep-SCHEMATIC1.net" ****
* source DO AN TOT NGHIEP
X_XM1 0 Y Y 0 N03792 0 N02122 N02654 AD633/AD
X_XM2 Z 0 Y 0 N03792 0 N04033 N02654 AD633/AD
R_R2 N02750 N02683 100k
R_R1 N02683 Y 100k
R_R3 N02783 N02750 59.7k
C_C1 X N02783 1n
V_VP1 N02654 0 15Vdc
X_U1C 0 N02915 N02654 N03792 Y TL084
R_R4 X N02783 200k
R_R5 N04033 N02783 40k
X_U1B 0 N02849 N02654 N03792 N02882 TL084
V_VN1 0 N03792 15Vdc
R_R6 N02915 N02882 400k
X_U2A 0 N02783 N02654 N03792 X TL084
C_C2 Y N02915 1n
R_R7 Z N02161 400k
C_C3 Z N02161 1n
R_R8 N02161 N02122 40k
X_U1A 0 N02683 N02654 N03792 N02750 TL084
R_R9 N02849 X 100k
X_U1D 0 N02161 N02654 N03792 Z TL084
R_R10 N02882 N02849 100k

**** RESUMING "do an tot nghiep-schematic1-bai 1.sim.cir" ****
.END

**** 05/25/14 12:35:40 ***** PSpice 16.6.0 (October 2012) ***** ID# 0 ********

**


**** Diode MODEL PARAMETERS


******************************************************************************




X_XM1.DX X_XM2.DX
IS 1.000000E-15 1.000000E-15


X_U1C.x_tl084.dx
IS 800.000000E-18


X_U1C.x_tl084.dy
IS 800.000000E-18
RS 1.000000E-03
CJO 10.000000E-12


X_U1B.x_tl084.dx
IS 800.000000E-18


X_U1B.x_tl084.dy
IS 800.000000E-18
RS 1.000000E-03
CJO 10.000000E-12


X_U2A.x_tl084.dx
IS 800.000000E-18


X_U2A.x_tl084.dy
IS 800.000000E-18
RS 1.000000E-03
CJO 10.000000E-12


X_U1A.x_tl084.dx
IS 800.000000E-18


X_U1A.x_tl084.dy
IS 800.000000E-18
RS 1.000000E-03
CJO 10.000000E-12


X_U1D.x_tl084.dx
IS 800.000000E-18


X_U1D.x_tl084.dy
IS 800.000000E-18
RS 1.000000E-03
CJO 10.000000E-12


**** 05/25/14 12:35:40 ***** PSpice 16.6.0 (October 2012) ***** ID# 0 ********

**


**** BJT MODEL PARAMETERS


******************************************************************************




X_XM1.QX X_XM2.QX
NPN NPN
LEVEL 1 1
IS 100.000000E-18 100.000000E-18
BF 10.000000E+03 10.000000E+03
NF 1 1
BR 1 1
NR 1 1
ISS 0 0
RE 0 0
RC 0 0
CJE 0 0
VJE .75 .75
CJC 0 0
VJC .75 .75
MJC .33 .33
XCJC 1 1
CJS 0 0
VJS .75 .75
KF 0 0
AF 1 1
CN 2.42 2.42
D .87 .87


**** 05/25/14 12:35:40 ***** PSpice 16.6.0 (October 2012) ***** ID# 0 ********

**


**** Junction FET MODEL PARAMETERS


******************************************************************************




X_U1C.x_tl084.jx1
NJF
VTO -1
BETA 222.070000E-06
IS 100.000000E-12


X_U1C.x_tl084.jx2
NJF
VTO -1
BETA 222.070000E-06
IS 100.000000E-12


X_U1B.x_tl084.jx1
NJF
VTO -1
BETA 222.070000E-06
IS 100.000000E-12


X_U1B.x_tl084.jx2
NJF
VTO -1
BETA 222.070000E-06
IS 100.000000E-12


X_U2A.x_tl084.jx1
NJF
VTO -1
BETA 222.070000E-06
IS 100.000000E-12


X_U2A.x_tl084.jx2
NJF
VTO -1
BETA 222.070000E-06
IS 100.000000E-12


X_U1A.x_tl084.jx1
NJF
VTO -1
BETA 222.070000E-06
IS 100.000000E-12


X_U1A.x_tl084.jx2
NJF
VTO -1
BETA 222.070000E-06
IS 100.000000E-12


X_U1D.x_tl084.jx1
NJF
VTO -1
BETA 222.070000E-06
IS 100.000000E-12


X_U1D.x_tl084.jx2
NJF
VTO -1
BETA 222.070000E-06
IS 100.000000E-12



JOB CONCLUDED

**** 05/25/14 12:35:40 ***** PSpice 16.6.0 (October 2012) ***** ID# 0 ********

**


**** JOB STATISTICS SUMMARY


******************************************************************************



Total job time (using Solver 1) = 2.20

--------------------
Hope this helps.
 

I wonder if the problems are brought up only by performing the strange supply sweep?
 

Yes. This is possible and make sense to look into this. Once simulation is complete, it would be easier for new user to analyze the result and find issues if any.
 

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