ENGR338 Lab 2021 Spring
Lab 1
Name: Nicolas Llarena
 Email: Njllarenaarias@fortlewis.edu

1. Lab 1 - Review Superposition, Thevenin's Equivalent Circuit, and LTSpice

2. Introduction
The Purpose of this lab is to re-learn some theorems from past classes like superposition and Thevenin's Equivalent Circuit. We will convert some circuits into their equivalent Thevenin's Circuits. LTSpice will be used to confirm our analysis and calculations by coding the components from a text file.

3. Materials
Materials Quantity
LTSpice Software
 1
Calculator
 1

4. Results

Task 1



Figure 1. Used Superposition theorem to calculate every voltage and current at every node in the shown circuit.

         
Figure 2. Results are shown for task 1. Code in a text file was used to confirm the circuit analysis done on Figure 1.


Task 2

Figure 3. Thevenin's Equivalent Circuit and RC time delay theorems were used to calculate ETH and RTH of the circuit shown above.


Figure 4. The code for the circuit including the PULSE() function was coded in a text file and then imported into LTSpice. Graph shows the time delay at vout compared to vin.


Discussion

 This lab was very helpful because i re-learned how to use superposition and thevenin's to do circuit analysis. I had to go back to past lectures at some points to remind myself how to do certain parts of this lab. Using LTSpice was also a good refresher I hope to keep using it to familiarize myself again since it is a very powerful tool. I look forward to using LTSpice and other software that can help with circuit analysis.