**** 10/01/03 20:11:50 ******* PSpice 9.2.3WU (Sep 2002) ****** ID# 1111111111 
 ** Profile: "Example 2.9 Step Response-Transient"  [ C:\Documents and Settings\Adel Sedra\My Documents\SEDRA WORK\SEDRA-PSPICE-CD\CH


 ****     CIRCUIT DESCRIPTION


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




** Creating circuit file "chapter 2-Example 2.9 Step Response-Transient.sim.cir" 
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS

*Libraries: 
* Local Libraries :
.LIB "..\sedra_lib.lib" 
* From [PSPICE NETLIST] section of e:\cadence\tools\PSpice\PSpice.ini file:
.lib "nom.lib" 

*Analysis directives: 
.TRAN  0 80u 0 10n 
.PROBE V(alias(*)) I(alias(*)) W(alias(*)) D(alias(*)) NOISE(alias(*)) 
.INC ".\chapter 2-Example 2.9 Step Response.net" 



**** INCLUDING "chapter 2-Example 2.9 Step Response.net" ****
* source CHAPTER 2
V_Vd         D 0 DC 0Vdc AC 1Vac 
V_Vin         INP 0  
+PULSE -1 1 0 1n 1n 20u 20u
X_U1         INP OUT VCC VEE OUT uA741
V_VCM         CM 0 0Vdc
E_En         CM INN D 0 0.5
V_VCC         VCC 0 15V
E_Ep         INP CM D 0 0.5
V_VEE         0 VEE 15V

**** RESUMING "chapter 2-Example 2.9 Step Response-Transient.sim.cir" ****
.END

ERROR -- Voltage source and/or inductor loop involving E_Ep
You may break the loop by adding a series resistance