**** 08/24/05 21:36:09 ******* PSpice 10.3.0 (Jan 2004) ******* ID# 1111111111 
 ** Profile: "TL431-based type 2-bias"  [ D:\CHRISTOPHE\LIVRES\SPICE SIMUS 2\Chapter3\Simulation examples\PSpice\chapter3_2\Chapter3_


 ****     CIRCUIT DESCRIPTION


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




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

*Libraries: 
* Profile Libraries :
* Local Libraries :
* From [PSPICE NETLIST] section of d:\OrCAD_10.3\tools\PSpice\PSpice.ini file:
.lib "D:\Christophe\Livres\Spice simus 2\Chapter2\Simulation examples\PSpice\copec.lib" 
.lib "D:\Christophe\Livres\Spice simus 2\Chapter2\Simulation examples\PSpice\freerun.lib" 
.lib "D:\Christophe\Livres\Spice simus 2\Chapter2\Simulation examples\PSpice\pwmswitch.lib" 
.lib "D:\Christophe\Livres\Spice simus 2\Chapter2\Simulation examples\PSpice\application.lib" 
.lib "nom.lib" 

*Analysis directives: 
.AC DEC 100 10 100k
.PROBE V(alias(*)) I(alias(*)) W(alias(*)) D(alias(*)) NOISE(alias(*)) 
.INC "..\TL431-based type 2.net" 



**** INCLUDING "TL431-based type 2.net" ****
* source CHAPTER3_2
C_C2         OPAMP N820640  {C2}  
R_Rlower1         0 N823609  10k  
C_C4         EQUI 0  {Cpole}  
V_Vref1         N823661 0 2.5
R_Rupper1         N823609 N823857  {Rupper}  
R_Rupper         N820640 N821649  {Rupper}  
E_GAIN1         N826938 0 VALUE {{-Rpullup*CTR/RLED} * V(N826857)}
E_E1         N821649 0 VALUE { V(ac)+4.99985 }
V_V8         N820184 0 {C1}
E_E2         N823857 0 VALUE { V(ac)+5.0004 }
V_V9         N820178 0 {C2}
X_U10         N820696 N820640 OPAMP AMPSIMP PARAMS:  POLE=10Meg GAIN=30000
+  VHIGH=5 VLOW=10mV
R_R22         N820184 0  1k  
R_R27         EQUI N826938  {Rpullup}  
C_C1         OPAMP N8207821  {C1}  
R_R26         N820172 0  1k  
R_R2         N8207821 N820640  {R2}  
X_U11         N823661 N823609 N823629 AMPSIMP PARAMS:  POLE=10Meg GAIN=30000
+  VHIGH=5 VLOW=10mV
V_V7         N820172 0 {R2}
R_Rlower         0 N820640  10k  
V_V10         AC 0 DC 0Vdc AC 1Vac 
E_SUM2         N826857 0 VALUE {V(N823629)+V(N823857)}
V_Vref         N820696 0 2.5
C_C3         N823629 N823609  {Czero}  
R_R25         N820178 0  1k  
.PARAM  Gfc=-9.7 C2={1/(2*pi*Fc*G*K*Rupper)} R2={K/(2*pi*Fc*C1)} Rpullup=20k
+  pfc=-75 K={tan((boost/2+45)*pi/180)} Rled={CTR*Rpullup/G} Cpole=
+ {1/(2*pi*Fpole*Ropto)} Czero={1/(2*pi*Fzero*Rupper)} Ropto=2.2k pi=3.14159
+  Fpole={Fc*K} Fc=5k Fzero={Fc/K} Rupper=10k pm=45 boost={pm-pfc-90} CTR=12 C1=
+ {C2*(K**2-1)}

**** RESUMING bias.cir ****
.END

ERROR -- Undefined parameter: G