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ECPI University *

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113

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Electrical Engineering

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Dec 6, 2023

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docx

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Electric Circuits LAB EET113 Unit5 Lab#9 Phase analysis & Frequency response in an RL circuit By: Roy Steuer Date: 11/04/2023 Online EET Department ECPI University 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 a Judicial Review Board hearing if summoned. Name Roy Steuer Date 11/04/2023 1

Mandatory Lab Conduct Figures All of your lab reports will require a “screenshot” figure containing the MultiSim circuit, the computers system tray, and the file information window. Your instructor needs to see the “Time Stamp” on this screenshot to make sure your work is original. An example of the screenshot is illustrated below with the required items circled in red. This figure with the required components is captured by: 1) Displaying the file information window=>Select “File”, then “File Information.” 2) For Windows based computers, press the Print Screen key on your keyboard and then paste the figure into your Word document. 3) For Mac computers using XenDesktop, press at the same time “Command”, “Shift”, and “3” in order to take a screenshot or press “Command”, “Shift”, and “4” in order to generate crosshairs with your pointer that can be used to select the area that you want to copy. In either case, the screenshot/desired image will be automatically saved to your computer desktop (Not the XenDesktop). You will need to insert the screenshot/desired image into your Word document. You are required to place your first MultiSim screenshot figure in the section labeled, 2

“ Place your screenshot with “Time Stamp” Here”. In an RL Circuit: Analyzing Phase Lead, Total current, phase angle and Frequency Response of a Low-Pass Filter Abstract: This lab will give context to RL circuits. The procedures for analyzing Phase Lead, total Current, phase angle and frequency response will be clear after this lab. These calculations are critical to the basic concepts of Alternating Current circuits . Introduction: This lab will go over the basic concepts of RL Circuits. To find the phase lead we can use the algebraic formula Ø = tan ˉ¹ (R / XL), where R is the resistance and XL is the total induction of the circuit. This can also be derived via an oscilloscope using the period of the voltage in and the phase angle of the voltage out. Using those data points, the equation Ø = [ 360 / T] x [T1] will give the phase angle. In building a low pass filter, we can test different waveform frequencies on the power source to observe voltage drop through the circuit. Part-1 Analyzing Phase Lead in an RL Circuit. Method and Procedure:  Review the solution on Page 733-734, Example 16-04 in your textbook.  Open the MultiSim software (On XenDesktop or on your laptop) and run the downloaded files E16-04A.ms8 and E16-04B.ms8 . 3

 Do the Related Problem . a) Calculate the phase lead (When R=2.2KΩ and XL=1 KΩ). b) Run circuit E16-04A.ms8 , and measure the phase lead. c) Run circuit E16-04B.ms8 , and measure the phase lead. Results and Figures : (Include your calculations, measurements, formulas & screenshots from Multisim if appropriate. Your instructor needs to see all your work) a) Calculate and measure the phase lead (When R=2.2KΩ and XL=1 KΩ). Ø = tan ˉ¹ (R / XL) = tan ˉ¹ (2.2 /1) = 65.56 Deg Place your screenshot here. Add measured phase differences to the table below. 4