Lab 1 pSpice Simulation v8

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University of Texas, Rio Grande Valley *

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3301

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Electrical Engineering

Date

Apr 3, 2024

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docx

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Uploaded by ChiefLightning3873

LAB 1 Cessar Lechuga

EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 A- Objectives. 1- Learn to use the pSpice simulation software tool for the analysis of Resistive and alternating current AC networks. B- Equipment required. 1- Software tool pSpice Student / Schematics 2- PC Computer at Lab Room and other. Memory USB stick. C- In the Lab . PSPICE Simulation. DC networks Figure 1.1 1) Voltage divider. We are going to simulate the circuit in Figure 1.1. From the Start menu, select Start/Programs/PSpice Student/Schematics to open the Schematics program. The Schematics window, shown partially in Figure 1.2, should appear. Next, we get the necessary parts (dc voltage and current sources and resistors) by selecting Get New Part from the Draw menu. Figure 1.3 shows the Parts Browser window where VDC has been typed into the Part Name field. Selecting Place & Close returns us to the Schematics window with the cursor changed to a battery symbol. Left click once to place a voltage source on the page. Right click to return the cursor to its original shape. Your Schematics page should look something like Figure 1.4. Page 1 of 12

EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 Figure 1.2-The Schematics window. Figure 1.3- The Part Browser window. Page 2 of 12

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EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 Figure 1.4- The Schematics page showing the VDC part after placement. 2) Go ahead and Draw / Get New Part / Select Part Name / Place and close at the end of the insertion. As shown in the next Figure. Observe there is GROUND-Earth symbol 3) Put them together to look like Figure 1.1. Double click on the numerical values and labels to change their values or names. For example, the source has been labeled Vs. Some labels, such as +V1-, +V2- are inserted as text (find the Text icon). To add wiring, from the Menu select Draw /Wire which changes the cursor to a pencil icon. Page 3 of 12

EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 4) You must now Save your job, other wise the simulation will not run. After you save it, run the program with Yellow icon or the Menu Analysis / Simulate. To display currents and voltages on the board, use Menu Analysis / Display Results on Schematic . You are done, current and voltages are displayed. It is interesting to look at Menu Analysis / Examine Netlist , a text file is opened showing the components’ roster, together with their connections. Always generate this file to understand better what pSpice is doing. Submit a screenshot with your names Page 4 of 12

EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 5) Current divider. Open a new Schematic with the White page icon at the top left corner. Assemble the following circuit. Complete all necessary steps until obtaining the displayed currents and voltage. To the left of File on the Main menu there is a Yellow Schematics Icon , opened it to toggle between Schematics. Submit a screen shoot with your name Page 5 of 12

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EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 To verify these results, first calculate the equivalent resistance of R1 par R2 = 307.09Ohms Next use Ohm’s law to calculate V= I R, Voltage = ( 5 A) ( Parallel resistance ) = 1.535kV Save your work D- PSPICE Simulation of AC Networks . Create a New schematic. Hit this icon on the left corner. You have two schematics in your work file. To open the previous schematic click on the yellow icon to the left of File (Menu) and select Next Alternating current networks use sinusoidal voltage sources, such as the one depicted below, Figure 1.5 and 1.6. D.1) Insert new parts: VSIN and the other parts familiar to you. D.2) Double click on VSIN symbol are fill the drop Menu with the source’s parameters, (Fig 1.5). D.3) Open Analysis / Setup / Transient and fill in the parameters at the bottom of Fig 1.5. D.4) Insert an icon Voltage Level Marker to plot the voltage. Page 6 of 12

EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 Figure 1.5- Schematic for AC networks Submit Figure 1.6- Sinusoidal voltage = 170 sin (377 t) Page 7 of 12

EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 D.5) Click on Simulate and Print the sinusoidal voltage. Right Click on the curve: Properties and increase its Width and change its Color to red. D.6- Bring out the cursor, and measure the period of the sinusoid. T = 16.8ms And the frequency f = 1/ T = 60 Hz E- Frequency Response with Pspice Create a New schematic. Hit this icon on the left corner. You now have three schematics in your work file. To open the previous schematic click on the yellow icon to the left of File (Menu) and select Next Use the following components: L, R, C, VAC, Voltage Marker and EGND to construct the circuit below with the values shown: Page 8 of 12

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EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 To assign values to the AC Source, double click on VAC schematic symbol and the window below will pop up. Uncheck both attribute boxes at the bottom and assign the values shown below. Click Save and OK. Error ACPHASE = 0, instead of 0V From the Analysis menu click on Setup and the window below will appear. Check the box next to AC Sweep and click on “AC Sweep” box The window below will appear, populate with the values shown below and check the Decade radial: Page 9 of 12

EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 Save the file and simulate by clicking on Anlysis -- > Simulate; or by hitting the F11 Key. After a few seconds the AC Sweep icon should appear in your Windows Taskbar. You results should look similar to the screen capture below. HINT: Right click on the plot and enhance its width Submit the plot with your name. Also increase the width of the curve E.1) Is this a Low Pass, High Pass or Pass Band filter? Low pass E.2) Using the cursor, add a marker to locate the cutoff frequency (frequency at which output gain is 70.7 % of the DC value). Write f 0 = 90.57 kHz Page 10 of 12

EECE 2317-A Lab 1- PSPICE Simulation Fall 2023 F- Conclusions - Do you have any conclusions? How can you use this software to your advantage during this course. Be open minded! In conclusion, the incorporation of PSpice software into our course curriculum presents a multitude of advantages that significantly enhance the learning experience in electronic circuit design and analysis. Beyond the technical perks, PSpice has made learning more accessible and collaborative. With everything shifting towards remote education, having a tool like this means students can still get that hands-on experience, no matter where they are. Plus, it's been a real eye-opener for teamwork – students can bounce ideas off each other, troubleshoot problems together, and learn from each other's approaches. Looking ahead, it's clear that PSpice isn't just a software tool – it's a gateway to a whole new way of learning and understanding electronics. Page 11 of 12

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