Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

ERROR -- Convergence problem in transient bias point calculation

Status
Not open for further replies.
A

aliraza54

Newbie level 2
Joined
Apr 18, 2015
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
17
hello, I have implemented the circuit shown in the image attached with this post. When i run the circuit it gives me and error i.e.
"ERROR -- Convergence problem in transient bias point calculation".
The simulation window shows these messages:
Code: 
**** 04/18/15 12:56:13 ****** PSpice Lite (October 2012) ****** ID# 10813 ****

 ** Profile: "SCHEMATIC1-volam"  [ C:\Users\AliRaza\Desktop\Gates\VA\vola-pspicefiles\schematic1\volam.sim ] 


 ****     CIRCUIT DESCRIPTION


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




** Creating circuit file "volam.cir" 
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS

*Libraries: 
* Profile Libraries :
* Local Libraries :
* From [PSPICE NETLIST] section of C:\Users\AliRaza\AppData\Roaming\SPB_16.6\cdssetup\OrCAD_PSpice/16.6.0/PSpice.ini file:
.lib "nomd.lib" 

*Analysis directives: 
.TRAN  0 100m 0 1u 
.OPTIONS ADVCONV
.PROBE64 V(alias(*)) I(alias(*)) W(alias(*)) D(alias(*)) NOISE(alias(*)) 
.INC "..\SCHEMATIC1.net" 



**** INCLUDING SCHEMATIC1.net ****
* source VOLA
Q_Q1         N00123 N00210 N00134 QbreakN 
Q_Q2         N00210 N00130 0 QbreakN 
Q_Q3         N00123 N00134 N00130 QbreakN 
R_R1         0 N00134  50k TC=0,0 
R_R2         0 N00130  50 TC=0,0 
V_V1         N00210 0 5Vdc
V_V2         N00123 0 5Vdc
R_R4         N01292 N01250  200k TC=0,0 
R_R3         N01203 N01250  200k TC=0,0 
V_V4         N01250 0 10Vdc
R_R5         N01299 0  1G TC=0,0 
Q_Q4         N01292 N01203 N01299 QbreakN 

**** RESUMING volam.cir ****
.END

**** 04/18/15 12:56:13 ****** PSpice Lite (October 2012) ****** ID# 10813 ****

 ** Profile: "SCHEMATIC1-volam"  [ C:\Users\AliRaza\Desktop\Gates\VA\vola-pspicefiles\schematic1\volam.sim ] 


 ****     BJT MODEL PARAMETERS


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




               QbreakN         
               NPN             
       LEVEL    1            
          IS  100.000000E-18 
          BF  100            
          NF    1            
          BR    1            
          NR    1            
         ISS    0            
          RE    0            
          RC    0            
         CJE    0            
         VJE     .75         
         CJC    0            
         VJC     .75         
         MJC     .33         
        XCJC    1            
         CJS    0            
         VJS     .75         
          KF    0            
          AF    1            
          CN    2.42         
           D     .87         


ERROR -- Convergence problem in transient bias point calculation


  Last node voltages tried were:

 NODE   VOLTAGE     NODE   VOLTAGE     NODE   VOLTAGE     NODE   VOLTAGE


(N00123)    4.2872 (N00130)    1.5484 (N00134)    2.9775 (N00210)    4.2872     

(N01203)    8.5743 (N01250)    8.5743 (N01292)    8.5727 (N01299)    8.1035 


  These supply currents failed to converge:

    I(V_V1)                   =   -10.00GA  \   -10.00GA

**** Interrupt ****
 

Attachments

  • Untitled.png
    Untitled.png
    4.8 KB · Views: 150

Are you joking? Obviously the schematic circuit doesn't belong to the netlist which has e.g. 4 transistors and three voltage sources.
 
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top