PSpice Tutorial

The purpose of this lab is to learn and use PSpice to analyze circuits as well as finding the Thevinin and Norton equivalents using the DC sweep and graphing functions.

Procedure:
Part 1:
To start, we built this simple circuit in PSpice and was able to find the current and voltage across each element.

Part 2:
After the circuit was built, we inserted a dummy Independent Current Supply of 0A to find the Thevinin Resistance.

We can see that the Thevenin Voltage is 10V.
The slope (R_th) is calculated to be approx. 3.33 Ω.
I_n = V_th/R_th = 3 A

Afterwards, the dummy current supply was replaced with a varying RL going from 1 Ω to 10 Ω in increments of 0.1 Ω.
From the maximum power peak in the graph, we see that R_th = 3.3 Ω

Conclusion:
R_th was verified both ways and showing that the lab was a success.