1. CIRCUIT ANALYSIS USING PSPICE Writing Netlist
For SEE / I

2. Objective:
To show how to simulate a simple circuit using DC analysis in PSpice based on netlist.

3. PSpice
Originated from Spice - Simulation Program with Integrated-Circuit Emphasis
PSpice is the PC version of Spice developed in 1984
Developed by MicroSim later bought by Cadence Design Systems
Where to get the student version of PSpice?
Google for “student version pspice 9.1 download”

4. Why PSpice ? Its part of the requirements for program accreditation
It is becoming an Industry Standard for circuit simulation
You will be using it again (and again) in future courses
Used to verify your answers for your homework/assignment in SEE 1003
As part of your assignment – will not be asked in exams

5. Input file (*.cir) containing
Steps in simulating circuit using PSpice
Circuits
Output file
**** 07/21/10 10:19:34 *********** Evaluation PSpice (Nov 1999) **************
Test 1
**** CIRCUIT DESCRIPTION
******************************************************************************
i1 0 1 dc 1.5 r r r
.dc i
.print dc v(1) v(2) i(r1) i(r2)
.end
**** DC TRANSFER CURVES TEMPERATURE = DEG C
i V(1) V(2) I(r1) I(r2)
1.500E E E E E-01
JOB CONCLUDED
TOTAL JOB TIME 
Input file (*.cir) containing
Netlist
PSPICE

6. 1 2 3 Steps in simulating circuit using PSpice
Convert your circuit into a netlist. Save your netlist using text editor with extension .cir 2
Run PSpice and simulate your .cir file 3
Obtain the results from your output file

7. Examples – DC analysis
This is how you write a PSpice netlist for the circuit:
Test 1
i1 0 1 dc 1.5 r r r
.dc i
.print dc v(1) v(2) i(r1) i(r2)
.end
 Title statement
 Data statement 1
 Control statement
 Output statement
 End statement

8. 2
Run PSpice and simulate your .cir file

9. 3
Display the output
 This depends on what you write in the output statement

10. Examples