Chat with us, powered by LiveChat Write the Abstract, Introduction and Conclusion? ?List and describe the steps for the practical lab. A schematic of the experimental setup is also required.? ??Calculated frequencies and du | Wridemy

Write the Abstract, Introduction and Conclusion? ?List and describe the steps for the practical lab. A schematic of the experimental setup is also required.? ??Calculated frequencies and du

 Write the Abstract, Introduction and Conclusion 

 List and describe the steps for the practical lab. A schematic of the experimental setup is also required. 

  Calculated frequencies and duty cycles for each circuit

EET130

Digital Systems I

Instructor: enter instructor name

Lab 1

Signals and Number Systems

Student Name(s): Click or tap here to enter text.

Click or tap here to enter text.

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.

Click or tap here to enter text.

Student Name Date: 1/1/2018

Adding your name here constitutes your agreement to the Honor Pledge as stated.

Contents Abstract 3 Introduction 3 Part 1: Methods and Procedures 4 Part 1: Results and Figures 4 Part 2: Methods and Procedures 4 Part 2: Results and Figures 4 Conclusion 5 References 6

(This instruction box is to be deleted before submission of Lab report)

What is an Abstract?

Write the Abstract, Introduction and Conclusion last! This should include a brief description of all parts of the lab. The abstract should be complete in itself. It should summarize the entire lab; what you did, why you did it, the results and your conclusion. Think of it as a summary to include all work done. It has to be succinct but yet detailed enough for a person to know what this report deals with in its entirety.

I ntroduction

(This instruction box is to be deleted before submission of Lab report)

What is an Introduction?

Write the Abstract, Introduction and Conclusion last! In your own words, explain the reason for performing the experiment and give a concise summary of the theory involved, including any mathematical detail relevant to later discussion in the report. State the objectives of the lab as well as the overall background of the relevant topic.

Part 1: Methods and Procedures

(This instruction box is to be deleted before submission of Lab report)

List and describe the steps for the practical lab. A schematic of the experimental setup is also required.

This section is the most important section of the report. Data representations and analysis are crucial in the engineering field. This section should include all raw data collected, e.g., voltage and current readings. All results are to be presented in both tabular and graphical form. All tables must have titles and all figures must have brief captions.

Part 1: Results and Figures

Take screenshots of each circuit in part 1 after the circuit simulation. Be sure to include the multimeters in the screenshots.

All screenshots of Multisim circuits must contain the date and time from the system tray.

This section should include all raw data collected, e.g., voltage and current readings. All results are to be presented in both tabular and graphical form. All tables must have titles and all figures must have brief captions.

Part 2: Methods and Procedures

(This instruction box is to be deleted before submission of Lab report)

List and describe the steps for the practical lab. A schematic of the experimental setup is also required.

This section is the most important section of the report. Data representations and analysis are crucial in the engineering field. This section should include all raw data collected, e.g., voltage and current readings. All results are to be presented in both tabular and graphical form. All tables must have titles and all figures must have brief captions.

Part 2: Results and Figures

Take screenshots of each circuit in part 1 after the circuit simulation. Be sure to include the multimeters in the screenshots.

All screenshots of Multisim circuits must contain the date and time from the system tray.

This section should include all raw data collected, e.g., voltage and current readings. All results are to be presented in both tabular and graphical form. All tables must have titles and all figures must have brief captions.

Conclusion

(This instruction box is to be deleted before submission of Lab report)

What is a Conclusion?

Write the Abstract, Introduction and Conclusion last! This section should reflect your understanding of the experiment conducted. Important points to include are a brief discussion of your results, an interpretation of the actual experimental results as they apply to the objectives of the experiment set out in the introduction should be given. Also, discuss any problems encountered and how they were resolved.

(Students need to write this).

References

Floyd, T. L. (2014). Digital Fundamentals (11th ed.). Pearson Education (US). https://ecpi.vitalsource.com/books/9780133524390

(2017) National Instruments Multisim (V 14.1) [Windows]. Retrieved from http://www.ni.com/multisim/

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,[removed],

ECPI University

2021

EET130

Digital Systems I

Lab 1

Clock Circuit

I. Objective:

· Distinguish between analog and digital signals.

· Construct and test an Astable Multivibrator circuitry.

II. Parts List:

· 1 – 555 timer (Virtual) resistor

· 1 – 27 k resistor

· 1 – 47 k resistor

· 1 – 5 k resistor

· 1 – 10 kresistor

· 2 – 10 nF capacitors

III. Introduction:

The 555 IC is a versatile timer which can be used either as an astable or monostable multivibrator. In the astable mode, the free running clock can be controlled using two resistors and a capacitor. The frequency of the generated clock obeys the following relationship:

f= 1/T= 1.44/[(R1+2R2)C]

Where, R1 is the resistor connected between pins 7 and 8.

R2 is the resistor connected between pins 6 and 7.

C is the capacitor connected between pin 6 and ground.

Refer to the 555 Timer IC datasheet for a complete understanding of the different applications of this IC.

IV. Procedures:

1. Build the circuit shown in Figure 1. This circuit corresponds to the astable mode of operation for the 555 timer IC.

2. Connect channel 1 of your oscilloscope to pin out on the IC.

3. Adjust the oscilloscope’s settings to be able to display the waveform shown in Figure 2.

4. Measure the frequency of the displayed waveform.

5. Using the equation provided in the introduction section calculate the expected frequency for the free running clock.

6. Compare the calculated frequency versus the measured one.

7. Calculate the duty cycle for the generated clock using the following equation.

Duty Cycle= (R1 +R2) /(R1+2R2)

8. Measure the duty cycle for the generated clock. Refer to Figures 3 and 4. The duty cycle is equal to:

D = t w/T

9. Replace R1 and R2 with a 5k and a 10 k resistor, respectively.

10. Repeat steps 2 to 8.

image1.emf

Fig.1 Circuit Diagram

image2.png

Fig.2 Oscilloscope Screen

image3.png

Fig.3 Measurement of clock period, T

image4.png

Fig.4 Measurement of t w

V. Assignment:

· Practice building two different astable circuits using the 555 timer.

· Repeat steps 2 to 10 of the above procedures and submit:

i. Calculated frequencies and duty cycles for each circuit

ii. Measured Frequencies and duty cycles for each circuit

Calculated

Resistors 27 kΩ and 47 kΩ

Calculated

Resistors 10 kΩ and 5 kΩ

f= 1/T= 1.44/[(R1+2R2)C]

Duty Cycle= (R1 +R2) /(R1+2R2)

Measured

Resistors 27 kΩ and 47 kΩ

Measured

Resistors 10 kΩ and 5 kΩ

Frequency

1.19kHz

5.7kHz

D = t w/T

T

842us

177us

t

505us

104us

image5.png

image6.png image7.png

image8.png image9.png image10.png

4

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