EN105_Lab1Gough

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Grantham University *

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EN105

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Electrical Engineering

Date

Jan 9, 2024

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docx

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11

Uploaded by hemi300

Kaila Gough G00215407 Lab 1 Grantham University 9/21/2023
Introduction: Write one to two paragraphs about the Lab. Explain the following information for this lab: What are the goals to achieve in the lab? In this lab, our main goal is to design and implement a digital circuit using Multisim/VHDL. We will be focusing on understanding the concepts of digital logic and applying them to create a working circuit. The lab also aims to enhance our problem-solving skills, logical thinking, and understanding of digital systems. What are the expectations of the lab? The expectations of this lab include successfully designing and simulating the digital circuit in Multisim/VDHL, as well as analyzing its functionality and performance. We will be expected to demonstrate our understanding of the concepts learned in class and apply them effectively to achieve the desired outcome. How will you be implementing this lab? In order to implement this lab, students will be using Multisim/VDHL software, which allows them to design, simulate, and analyze digital circuits. They will start by conceptualizing the circuit design and then proceed to create the corresponding VHDL code. After that, they will simulate the circuits using Multisim/VHDL and make any necessary adjustments to ensure their proper functioning. What will you try to measure? During the lab, the students will be measuring various parameters of the digital circuit to evaluate its performance. This may include measuring input and output voltage, current flows, propagation delay, power consumption, and any other relevant measurements that help assess the circuit’s functionality and efficiency. Equipment/Components: List the type of equipment or components that you will be using? Where will you find these components? How will you use these components in Multisim/VHDL? Explain any adjustments required such as tolerances. As for the equipment and components, the use of virtual components will be utilized within the Multisim/VHDL software. The components used include a 24v power source, a ground, and 2 transistors that are labeled R1 and R2, both with 5% tolerance enabled. In order to insert the components, right click on the grid anywhere and a menu pops up to search for each individual component that’s needed. According to the directions, it is asking to enable 5% for the tolerance on the transistor represented by R1 and R2. After recording the amount of current and voltage flowing through each of the resistors, directions ask to adjust the amount in R1 from 5k to 10k and R2 changes from 10k to 20k. Once the amounts are displayed properly the simulation will run and each amount recorded within the lab
template provided. The amount that is asked will be the voltage of both R1 and R2, as well as the current of each. Specifically, the voltage and current both, will change when the multimeter is changed from running in series with the loop rather than on top tagging on the outskirts of the transistor. Procedure: Briefly describe how you will approach the problem and try to solve the lab; describe and explain any techniques/rules/laws/principles you would use. Outline each step of the process. Using the included components within the Multisim software, a circuit may be constructed using the following values: V1 = 24V R1 = 5kOhms R2 = 10k Ohms/20k Ohms Ground Resistor tolerance is to be enabled and set at 5% tolerance on both transistors within the simulation. After testing step 2-5, directions ask to edit the values of the R2 transistor from 10kOhm to 20kOhm. After editing the value, repeat steps 2 – 5 once more with the new transistor value in place. Record the results within the lab report template. Calculations Circuit Design Execution/Results Analysis Answering questions Conclusion
Circuit Design on right set at 5% tolerance 4v power supply on left side, Ground on bottom, (R1) 5k Ohm transistor on top set at 5% tolerance, (R2) 10k Ohm transistor Picture of circuit design before testing Calculations: While performing circuit analysis and necessary calculations to determine the expected values and behavior of the circuit components the following was interpreted: In step 2, a multimeter is set up across R1 to measure the output of voltage running through the circuit. With the DC power voltage set at 24v, the ground wired in series, and the transistors in series as well both with a tolerance of 5% resistance and set at 5k for R1, and 10k for R2 the voltage outcome is 8v. The screenshot of this calculated simulation is below. Execution/Results: The screen shot below is of the calculation obtained when running the simulation. The circuit included a 24v power source ran in series with a 5k resistor with 5% tolerance enabled (R1). The voltage calculations for the R1 transistor equaled to 24 volts when tested using the multimeter tool.
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