ET-220: Electronics II

Course Information

Course, prefix, number, & title: ET-220 Electronics II

Hours (Class, recitation, Laboratory, studio): 3 class hours, 3 laboratory hours

Credits: 4

Pre-requisites (if any): ET-210

Course Description in college catalog:

Design of small and large signal amplifiers (transistor, FET); frequency response of amplifiers; D.C. amplifiers, operational amplifier circuits; integrated circuit theory; regulated transistor power supplies. Laboratory hours complement class work.

Academic programs for which this course serves as a requirement or an elective:

A.A.S. Computer Engineering Technology

A.A.S. Electronic Engineering Technology

In order to pass ET-220, a passing grade must be obtained in both Lecture and Laboratory.

General Education Outcomes: Below is a listing of General Education Outcome(s) that this course supports.

  1. Use analytical reasoning to identify issues or problems and evaluate evidence in order to make informed decisions

Course-specific student learning outcomes:

At the end of the course, students shall:

  • Understand the basics of an operational amplifier, the common mode operation of it, and the double-ended input operation.
  • Learn the different Op-Amp applications: constant gain, inverting, non-inverting, summing, buffering, and cascading amplifier, how to use of Op-Amp as analog-to-digital or digital-to-analog conversion.
  • Apprehend the operation of a timer circuit, what is an oscillator circuit, and how to design an oscillator.
  • Understand how power supply circuits operate and how to analyze each part of it.
  • Comprehend and learn how to design passive and active filters.
  • Understand the different types of power amplifiers and the differences between classes A, AB, and C amplifier.
  • Learn what causes amplifier distortion, what the efficiency of various classes of amplifier is, and how to calculate the power for the different power amplifiers.

Program-specific outcomes

ABET Criterion 3 Student Outcomes addressed by ET-220:

Student Outcome (1) - an ability to apply knowledge, techniques, skills and modern tools of mathematics, science, engineering, and technology to solve well-defined engineering problems appropriate to the discipline:

  • Performance Indicator ETCT1-1 Apply engineering principles to analyze and design electrical, electronic, and computer circuits and systems including semiconductor devices, filters, and amplifiers.

Student Outcome (2) - an ability to design solutions for well-defined technical problems and assist with engineering design of systems, components, or processes appropriate to the discipline:

  • Performance Indicator ETCT2-1 State and apply appropriate circuit laws to analyze and implement electrical and electronic systems.

Student Outcome (4) - an ability to conduct standard tests, measurements, and experiments and to analyze and interpret the results;

  • Performance Indicator ETCT4-1 Verify system performance by taking measurements and interpreting results.
  • Performance Indicator ETCT4-3 Construct, test and validate electronic circuits from circuit schematics and logic diagrams.

Other program outcomes (if applicable).

  1. Integrate knowledge and skills in the program of study

Methods by which student learning will be assessed and evaluated; describe the types of methods to be employed; note whether certain methods are required for all sections:

ET 220 Lecture Course Topics- Table of Week Numbers and Lecture Course Topics:

Course objectives/expected student learning outcomes
Week Lecture Topics
1 Operational Amplifiers – Basic Operation, Comparators
2 Negative Gain (Inverting) Amplifiers; Positive Gain (Non-Inverting) Amplifiers
3 Operational Amplifiers – Inverting summing amplifier, Multiple Input Summing (cascade amplifier), and voltage Differential Amplifiers
4 Operational amplifier specifications and applications
Linear-Digital ICS and voltage-controlled oscillator
5 Practice Exercises on Op-Amps, EXAMINATION 1
6 Power Supplies (Voltage Regulators)
7 Frequency Response – Concepts, Bode Plots, Decibels
8 Passive and active Filters – Low-Pass, High-Pass, Band-Pass
9 Active Filters – Low-Pass, High-Pass, Band-Pass; Operational Amplifiers - DC Errors, Frequency Limitations, Slew Rate
10 Practice Exercises on passive and active filters, EXAMINATION 2
11 Review – DC & AC Concepts; Common Emitter Transistor Amplifier; Frequency Response of Common Emitter Transistor Amplifier
12 Transistor Power Amplifiers – Large Signal vs Small Signal, Thermal Concepts, Class A
13 Transistor Power Amplifiers–Class AB & B; Voltage Regulator and Oscillator Circuits
14 Practice exercises on transistor amplifiers, EXAMINATION 3

ET 220 Lab Course Topics- Tables of Week Numbers and Lab Course Topics:

Course objectives/expected student learning outcomes
Week Lecture Topics
1 Lab 1: AC Measurement Equipment & Concepts Review
2 Lab 2: Introduction to Ideal Operational Amplifier
3 Lab 3: Operational Amplifier with Negative Feedback
4 Lab 4: The Feedback Operational Amplifier – negative gain and summing amplifier
5 Lab 5: Positive Gain Amplifiers & Summing Amps, Integrator
6 Lab 6: Op-amp Integrator Simulation
7 Lab 7: Multiple Op-amp Circuits
8 Lab 8: Frequency Response of Band-Pass Filter
9 Lab 9: Operational Amplifier Frequency Response
10 Lab 10: Operational Amplifier Frequency Response Simulation
11 Lab 11: 2nd Order High-Pass Active Filter and Notch Filter
12 Lab 12: High-Pass Active Filter Simulation
13 Lab 13: Op-amp Output Current Limitations – Class B Output Drivers

Academic Integrity policy (department or College):
Academic honesty is expected of all students. Any violation of academic integrity is taken extremely seriously. All assignments and projects must be the original work of the student or teammates. Plagiarism will not be tolerated. Any questions regarding academic integrity should be brought to the attention of the instructor. The following is the Queensborough Community College Policy on Academic Integrity: "It is the official policy of the College that all acts or attempted acts that are violations of Academic Integrity be reported to the Office of Student Affairs. At the faculty member's discretion and with the concurrence of the student or students involved, some cases though reported to the Office of Student Affairs may be resolved within the confines of the course and department. The instructor has the authority to adjust the offender's grade as deemed appropriate, including assigning an F to the assignment or exercise or, in more serious cases, an F to the student for the entire course." Read the University's policy on Academic Integrity opens in a new window(PDF).

Any student who feels that he or she may need an accommodation based upon the impact of a disability should contact the office of Services for Students with Disabilities in Science Building, Room S-132, 718-631-6257, to coordinate reasonable accommodations for students with documented disabilities. You can visit the Services for Students with Disabilities website.

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