EET310_Lab2_Charles Haskett

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Defense Acquisition University *

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EET310

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Electrical Engineering

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Dec 6, 2023

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docx

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11

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EET310 Circuit Analysis Instructor: Neeta Tivare Lab 2 Thevenin’s Theorem Student Name: Charles Haskett Honor Pledge: I pledge to support the Honor System of ECPI. I will refrain from any form of academic dishonesty or deception, such as cheating or plagiarism. I am aware that as a member of the academic community, it is my responsibility to turn in all suspected violators of the honor code. I understand that any failure on my part to support the Honor System will be turned over to a Judicial Review Board for determination. I will report to the Judicial Review Board hearing if summoned.
2 Charles Haskett Date:
3 Table of Contents ABSTRACT ................................................................................................................................................ 3 INTRODUCTION ....................................................................................................................................... 3 PROCEDURE ............................................................................................................................................. 4 Part I: Design a multisource circuit in Multisim ....................................................................................... 4 Part II: Remove R L from the circuit” ......................................................................................................... 4 Part III: Measure the R TH and V TH of the circuit ......................................................................................... 5 Part IV: Draw Thevenin’s equivalent Circuit with the V TH and R TH values .................................................. 5 Part V: Maximum Power Transfer Theorem ............................................................................................. 5 ANALYSIS & RESULTS ............................................................................................................................ 6 Calculations ............................................................................................................................................. 6 Questions ................................................................................................................................................. 6 Figures ..................................................................................................................................................... 7 CONCLUSION ........................................................................................................................................... 9 REFERENCES .......................................................................................................................................... 10
4 ABSTRACT In this lab the student will use the Multisim software to verify their calculations of Thevenin’s theorem. The student will calculate the V TH (voltage) and R TH (resistance) of a complex circuit. The student will then draw the Thevenin’s equivalent circuit with the calculated voltage source in series with the resistance of the circuit. The student will also state what condition will be required to have maximum power transfer from the power source to the R L . I NTRODUCTION Thevenin’s theorem is used to simplify complex circuits into what is known as Thevenin’s equivalent circuit. The theorem takes all of the sources and components in a circuit between two points where the load will be placed and condenses it down to one power source in series with the resistance of the internal circuit. There are five steps to calculating the V TH and R TH of Thevenin’s equivalent circuit. The first step is to remove the RL, then short (voltage) or open (current) source of the circuit. While keeping points A and B intact calculate the series-parallel resistors in the circuit to obtain the resistance of the circuit. Replace the source and calculate the voltage or current. Once you have the source and the resistance of the circuit you can then draw Thevenin’s equivalent circuit by placing the power source with the calculated or measured voltage in series with the calculated or measured resistance of the circuit.
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