Andrews University

College of Technology

Engineering and Computer Science Department

 

ENGR325 Electronics II

Syllabus - Fall 2007

Instructor: Ronald L. Johnson

Office: Haughey Hall - HYH330

Office Hours: MWF at 9:30-10:20, MWR at 2:30-3:15

Contact Info: johnsonr@andrews.edu, office 471-3368, home 683-7418

Class Location: HYH321

Class Time: 8:30-9:20 MWF with Lab 2:00-4:45 T

 

Course Description: This is the second electronics course.  It is designed for the students in the Electrical/Computer Engineering emphasis.   The course expands on the introduction to diodes, field effect and bipolar junction transistors, and op-amps in Electronics I.  MOSFET transistors are emphasized as dc biasing, amplifier configurations, ac equivalent circuits, and frequency response are explored.  Ideal op-amp circuits are quickly reviewed and then the circuitry inside the op-amps, feedback and stability, and the non-ideal effects in op-amp circuits are studied.  Finally, typical applications of op-amps are introduced and the design considerations are explored.  This is a 4 credit course with 3 one-hour lectures and a three-hour lab each week.

 

Course Prerequisites: ENGR275 Electronics I or its equivalent is a prerequisite.

 

Text: Donald A. Neamen, Microelectronics - Circuit Analysis and Design, 3rd  Edition,  McGraw-Hill, 2007

 

Course Outline:

A.  Ch.1&2 - Semiconductor Materials and Diodes and Diode Circuits                                                     1 wk

B.  Ch. 3&4 - The Field-Effect Transistor and Basic FET Amplifiers                                                           3

Exam I - Chapters 1-4                                        

C.  Ch. 5&6 - The Bipolar Junction Transistor and Basic BJT Amplifiers                                                   1

D.  Ch. 7 - Frequency Response of Amplifiers                                                                                                1

E.  Ch. 8 - Output Stages of Power Amplifiers                                                                                                 1

F.  Ch. 9,10&11 -  Ideal Op-Amp Circuits, IC Biasing, and Differential/Multistage Amplifiers                2

Exam II - Chapters 5-11    

G. Ch. 12 -  Feedback and Stability                                                                                                                    1

H. Ch. 13&14 - Op-Amp Circuits and Nonideal Effects in Op-Amp Circuits                                              2

I.  Ch. 15 - Applications and Design of Integrated Circuits                                                                          2

Final Exam - Comprehensive but emphasis on Chapters 12-15                                 14 wks

 

Course Objectives: Upon successful completion of this course the student is expected to have demonstrated these outcomes:

A.  Materials and Operation of Semiconductor Diodes, AC and DC Equivalent Circuits, and Diode Applications.

1. Describe the construction of a diode and the two mechanisms that generate currents in a semiconductor.

2. Sketch and give the equation for the V-I characteristic of a diode.

3. Describe temperature effects and reverse breakdown.

4. Give the piece-wise linear model for dc analysis and the ac equivalent circuit for ac analysis of diodes.

5. List 5 other diodes and describe their characteristics and applications.

6. Sketch the diode circuits used for half-wave and full-wave rectification of sinusoidal voltages.

7. Show the voltage waveforms and label amplitudes at the input and output of these rectifier circuits.

8. Design a full-wave rectifier/filter circuit to meet specifications of output voltage, current, and ripple.

9. Design Zener voltage regulator, clipping, clamping, and light-emitting diode circuits.

 

 


B.  MOSFET Operation, Biasing, Equivalent Circuit, and Amplifier Configurations

1. Demonstrate an understanding of the operation and characteristics of the various types of MOSFETs.

2. Show familiarity with the dc analysis and design techniques for MOSFET circuits.

3. List and describe 3 types of MOSFET applications.

4. Sketch the circuit for constant-current biasing like that used in ICs and describe its operation.

5. Sketch the circuits for two common multistage amplifier circuits and explain the dc biasing.

6. Demonstrate an understanding of the development of the ac equivalent circuit for a MOSFET amplifier.

7. Design a common-source MOSFET amplifier placing the Q-point properly on the load line and determine the expected voltage gain, current gain, input resistance, and output resistance.

8. Repeat the above design for a common-drain MOSFET amplifier.

9. Repeat the above design for a common-gate MOSFET amplifier.

10. Compare the operating characteristics of these 3 amplifier configurations.

11. Sketch circuits to show how these ideas can be extended to single and multistage IC amplifier designs.

C.  BJT Operation, Biasing, Equivalent Circuit, and Amplifier Configurations

1. Demonstrate an understanding of the operation and characteristics of the BJT.

2. Show familiarity with the dc analysis and design techniques for BJT circuits.

3. List and describe 3 types of BJT applications.

4. Relate the ac equivalent circuit for the BJT and the 3 amplifier configurations to those of the MOSFET.

D.  Frequency Response of AC Amplifiers

1. Describe the general frequency response characteristics of amplifiers.

2. Develop the transfer functions for high-pass and low-pass circuits and sketch their Bode diagrams.

3. Analyze the frequency response of transistor amplifiers with capacitors.

4. Determine the frequency response of a MOSFET amplifier and define the Miller effect.

5. Determine the high frequency response of the 3 basic amplifier configurations and the cascode circuit.

E.  Output Stages and Power Amplifiers

1. Describe the characteristics of BJT and MOSFET power transistors and analyze heat flow with heatsinks.

2. Describe the various classes of power amplifiers and determine their efficiencies.

3. Design an output stage using power MOSFETs as the output devices.

F.  Ideal Op-Amps, Common Circuits, IC Biasing and Active Loads, Differential and Multistage Amplifiers.

1. Describe the assumptions used to develop the ideal op-amp equivalent circuit and demonstrate its use.

2. Sketch the 8 basic op-amp circuits, write expressions for circuit gain, and discuss the input and output impedances.

3. Demonstrate ability to use these 8 op-amp circuits in instrumentation applications.

4. Sketch and explain the operation of IC op-amp circuits.

G.  Feedback and Stability

1. Describe the feedback concept and list advantages and disadvantages of using feedback in circuits.

2. List and summarize the characteristics of the 4 ideal feedback amplifier configurations.

3. Analyze actual op-amp or discrete amplifier circuits for each feedback configuration and compare results with the theory.

4. Sketch the Bode plot for the feedback system and determine the stability (phase and gain margins).

H.  IC Op-Amp Circuits and Their Deviations from the Ideal Characteristics

1. Demonstrate familiarity with several typical MOSFET and BJT op-amp IC circuits and their analysis.

2. Define the gain, input and output impedance, frequency response, bias currents, and input voltage and bias current offsets and be able to relate these characteristics to the circuits found inside the IC.

3. Demonstrate that you can take these non-ideal characteristics into account when designing op-amp circuits.

I.  Op-Amp Applications

1. Demonstrate ability to analyze and design these circuits:

·                       Active filters

·                       Sinusoidal oscillators

·                       Comparators (Schmitt trigger circuits)

·                       Waveform generators

·                       Power amplifiers

·                       Voltage regulators

·                        


Course Procedures: Some of the course procedures that we will be following are listed below.

Attendance–You are expected to attend each class and participate in the class and lab activities conducted.  Assignments for individual or group presentations at the next class will at times be given.  Successful presentations of these assignments will be a part of the homework grade for the class.

Intellectual Honesty– Any work that you submit is expected to be your work and not something that you have “borrowed” from others.  I encourage you to collaborate in your work, but not to copy the work of others.  On exams I expect that you will follow the exam instructions carefully and not use materials other than those specified.  Deviation from these expectations may result in a failing grade on the assignment or even for the class.  For further information on the issue of academic integrity please read the Academic Integrity section in the Bulletin on page 28 and the corresponding section in the Student Handbook.

E-mail Contact–I welcome your questions via e-mail and will suggest that you check your e-mail between class sessions for further clarification of assignments or tips that may help you do the homework.  Be sure that you are “connected”!

Homework-- Questions and problems at the end of the chapters will be assigned in class and will be expected to be handed in at the beginning of the next class period unless otherwise indicated. If you have trouble with the homework, I will try to be of assistance via e-mail or by phone or in person in the office.  Late papers, if accepted, will be given ½ credit.

Laboratory–Laboratory project outlines will be given out each week.  You will be expected to complete each of these projects.  For each project you will hand in a report with these elements: A) a description of the project, its objectives, and the steps that you went through to complete it,  B) lists of laboratory equipment used and schematics of circuits you put together, C) documentation of results of the tests you conducted including labeled waveforms and tables of measurements, and D) a summary of your results with your comments on what the results mean and how you were able to meet the objectives of the project.  These reports are to be created on some type of word processor with attention to spelling, grammar, and overall report flow and organization.  They should stand alone, being able to define what you did and your results completely.

Exams–Exams will be announced at least a week in advance and will emphasize the material covered since the last exam.  Refer to the course objectives to know what you will be expected to do.   It should be recognized that the material at each stage builds on the previously covered material so in that sense each exam will cover all of the previous material.

Students with Disabilities–Andrews University accepts and appreciates diversity in its students, including students with disabilities. Accordingly, students with documented disabilities are encouraged to inform the University of their disability and enter into a dialogue regarding ways in which the University might reasonably accommodate them. If you qualify for accommodations under the Americans with Disabilities Act, please see the instructor as soon as possible for referral and assistance in arranging such accommodations.

 

Course Grading Procedures: The final grades will be computed by weighting the total scores on your attendance, your daily homework and reading assignments, your laboratory assignment reports, and your exams by the factors indicated and then comparing your overall percentage with the scale shown.    

 

Weighting factors:                                                             Grading Scale:

 

Homework/Quizzes              25%                                        90 - 100%               A

Lab project reports              25%                                        80 - 89%                 B

Exams                                     50%                                        70 - 79%                 C

60 - 69%                 D

    < 60%                 F

 

 

 

 

 

 

 

Program Objectives:

We aspire to be a place of choice for engineering and computer science education where dedicated students and faculty grow together to reach their God-given potential for service to society and the church.  We embrace a thoughtful respect for diversity of viewpoints, a caring stewardship for our God-given home, a marked excellence in our chosen vocations, and a profound faith in the leadership of God in our lives.  We commit ourselves to the creation of a nurturing environment where all students willing to work diligently will succeed.


Our students are challenged:

I.                     To identify, formulate, and solve engineering and computing problems, and to design and carry out experiments that will support these solutions,

II.                   To apply the theories of science, mathematics, engineering, and computing in order to creatively design practical and economical solutions to defined problems,

III.                 To work effectively in teams with other disciplines to generate design solutions that are sensitive to societal values and environmental impact.

IV.                 To develop broad competencies and focused proficiencies in their chosen discipline and to demonstrate skills in the use of modern engineering and computing tools,

V.                   To advance in their disciplines through research and internships, to address  contemporary issues, and to adopt the practice of life-long learning,

VI.                 To practice critical thinking and effective communication,

VII.               To demonstrate high professional and ethical values in their work,

VIII.             To achieve a well-rounded, Christ-centered life perspective through the integration of the entire curriculum.

 

 

Relationship Between Course Objectives and Program Outcomes:  This course is part of the process of ensuring Andrews University engineering graduates:

 

1.        Possess an ability to design and conduct experiments, and to analyze and interpret data.

2.        Possess an ability to identify, formulate, and solve engineering problems in both individual and team environments, particularly in the design of a system, component, or process to meet desired needs.

3.        Possess an ability to apply knowledge of mathematics, science, and engineering.

4.        Possess an ability to use the techniques, skills, and modern engineering tools necessary for engineering practice.

5.        Have knowledge of contemporary issues in electrical and computer engineering, and mechanical engineering; and a broad education necessary to understand the impact of engineering solutions in a societal and global context.

6.        Recognize the need for and an ability to engage in life-long learning and the importance of professional licensure.

7.        Communicate effectively, both orally and in writing, and both individually and as members of multi-disciplinary teams.

8.        Possess an understanding of professional ethical responsibility.

9.        Possess a well-rounded, Christ-centered life perspective through the integration of the entire Andrews University curriculum.

 

Program outcomes 1, 2, 3, 4, 5, 6, and 7 are particularly addressed in this course.