Department of Physical Science and Engineering
Engineering Program
Welcome to Circuit Laboratory!
EGR 245 Electronic and Digital Circuit Laboratory
Spring 2017

INSTRUCTOR: Dr. Scott D. Johnson, Associate Professor, Engineering Coordinator, Physical Sciences and Engineering

OFFICE: Official office is CAT-229R; but unofficial office is CAT-305 (better place to find me)

OTHER LOCATIONS : CH-100 (Department) or the classroom proper (CAT-305)

PHONE NUMBERS: 301-546-0420 (Department Main Line) or 301-546-7536 (Office)


To facilitate e-mail communication with me, please include the following information: The course designation (EGR-2450) and the subject of any e-mails to me during the Spring 2017 semester. Note: All credit students (with the exception of Howard Community College students enrolled at Laurel College Center) are required to use Owl Mail for all college communication.

Example: EGR2450: Need help on Oscillators



OFFICE HOURS: MW 4:00-4:30pm; TTh 3:00-3:30pm and 6:00-7:30pm, by appointment all other times

Note: Part or all of the office hours might be in the classroom (CAT-305) as student questions warrant.


Introduction to basic circuit measurement techniques and laboratory equipment (DMM, analog and digital oscilloscope, power supply, function generator, Digital Logic Analyzers) including the limitations and inaccuracies inherent in any measurement device. Design, construction and performance measurement of circuits containing passive elements, digital logic circuits, transformers, diodes and operational amplifiers. In addition, simulation tools to design circuits and to analyze performance will be used extending work performed in digital logic design and circuit analysis.

Knowledge of both steady state response and transient response is required for a number of experiments.

Extensive analysis will be demonstrated in both laboratory books and laboratory reports. Knowledge of statistical analysis as well as other methods of analysis will be required in this class.

This course presently does most of the same labs that EGR 2030 does with some additions...this course will change to reflect that EGR 2030 has a lab already.


EGR 2440 Complete or concurrent

EGL 2030 Complete or concurrent (or permission of instructor)


In the Engineering program at Prince George's Community College, for all credit course, students are expected to spend a minimum of 45 combined hours of instructional time and related coursework time per credit hour. This course is a 2 credit laboratory course. This course achieves the minimum of 180 hours of instructional time by requiring 60 hours of instructional time, 60 hours of laboratory time and 60 hours of student work outside of instructional time. Minimum outside instructional time assumes the student is aiming for a C, not an A.


  • Students passing this course will be able to accomplish all of the outcomes listed below.
  • Students will demonstrate their attainment of these outcomes through the planned assessments. So, for each course learning outcome, indicate briefly the planned assessment tools, such as cases, essay, multiple choice questions, etc.
  • Courses seeking general education status must address all pertinent general education outcomes in the below alignment.

Upon successful completion of the course a student will be able to:

Course Outcome

Program Outcome #


Planned Assessment

Demonstrate an ability to design and conduct experiments.



Instructor observation

Execute an appropriate laboratory notebook with detail notes on each experiment from start to finish.



Laboratory book, laboratory report, and instructor observation

Write laboratory reports that give sufficient detail to be able to reproduce the experiment along with complete analysis and interpretation of the data taken from the experiment.



Laboratory book and laboratory report

Demonstrate the ability to use measurement systems such as an oscilloscope and DMM.



Laboratory book and laboratory report

Describe and apply circuit laws to circuit problems in a laboratory setting.



Laboratory book and laboratory report

Use a circuit analysis software (Spice, PSpice, or similar product) or a general purpose programming language (MATLAB, Fortran, or a similar language) to analyze data from an experiment.



Laboratory book and laboratory report


Practical Electronics for Inventors 4th Edition.  Scherz, Paul and Monk, Simon  McGraw-Hill (2016). Closest replacement for the out-of-print classic "Electronic Components and Measurements" by Wedlock and Roberge (1969). This new book misses instructions on how to do a laboratory journal, but those instructions are on this web site in EGR 1010.

RECOMMENDED BOOKS (should already have these, but if you don't get them):

Principles and Applications of Electrical Engineering 6th Edition.  Rizzoni, Giorgio., and Kearns, James A.  McGraw-Hill (2015).
Schaum's Outline of Electric Circuits 6th Edition.  Nahvi, Mahmood and Edminister, Joseph A.  McGraw-Hill (2013).

Fundamentals of Digital Logic with VHDL Design with CD-ROM 3rd Edition.  Brown, Stephen and Vranesic, Zvonko.  McGraw-Hill (2008).
Schaum's Outline of Digital Principles 3rd Edition.  Tokheim, Roger L.  McGraw-Hill (1994).

Pocket Book for Technical Writing for Engineers and Scientists 3rd Edition .  Finkelstein, Leo.  McGraw-Hill (2007).
Getting Started with MATLAB: A Quick Introduction for Scientists and Engineers.   Pratap, Rudra.  Oxford University Press (2009).


  1. Spice-based software

  2. Pens, Pencils, Eraser, Straight edge, Paper, and Calculator are required for every class.


As with any class an amount of time at least equivalent to two times the credit hours is expected to be performed for homework and labs. Please allot sufficient time for homework.

Homework will be assigned each week including the first week.

Laboratory will be performed each week including the first week.


Evaluation of student performance is to be based on:

  1. Laboratory book will be reviewed each week for approximately 3% of the grade that week (10 labs = 30% total)

  2. A laboratory report will be worth approximately 7% of the grade for each lab (10 labs = 70% total)

Grades are assigned based on the grading policy stated in this syllabus and not the Blackboard grade book.

The scale used for grades in this class is the "Modern Standard Grading Scale" as defined in the COLLEGE RESOURCES and SERVICES link below.


As the semester continues, I hope to see all of you staying in my course and doing well. However, if you are considering withdrawing from this course, your withdrawal may result in financial aid and /or academic standing implications. Therefore, if you are considering withdrawing at any point, please speak with me before making a final decision. I may be able to offer to direct you to help. If I am unavailable, please contact Mark Hubley via email at or telephone at 301-546-0420.


There are no Q grades any more; they have been replaced with "NA Grade" and "FX Grade."

The NA GRADE may be assigned by the faculty member to any student on the roster who never attends or academically participates in the class during the first three weeks of class (or equivalent of 20 percent in short courses).

The FX GRADE may be assigned by the faculty member to any student on the roster who did not officially withdraw from the course but who failed to participate in course activities through the end of the period. It is used when, in the opinion of the instructor, completed assignments or course activities or both were insufficient to make normal evaluation of academic performance possible.


  1. Laboratory report is due the next week after the laboratory is completed except for the last lab where it is due immediately after class. One of two laboratory books will be presented with the laboratory report.

  2. Make-up homework, quizzes, and/or tests are up to the discretion of the teacher (excused absences only).


New topics are to be covered each week and include but are not limited to the following subjects. This represents the lecture with an additional link to the labs (as they will change over the years).

Week 1 Introduction/Measurement Equipment

Week 2 Virtual Electronic Laboratory (NI Circuit Simulator and Labview - please get Student versions)

Week 3 Basic Circuits with a Microcontroller (LED, Servo, other general circuits)

Week 4 Basic Circuits with a Microcontroller (Digital Potentiometer)

Week 5 Sequence Analyzers (Digital Logic Analyzer,Bode Plotter, Spectrum Analyzer, General)

Week 6 Digital Logic Circuits (encoder/decoder, multiplexer)

Week 7 Digital Logic Circuits (Adders by gates, functional modules, Analog-to-Digital Converter)

Week 8 Operational Amplifiers (Filter Design, Integrator, Comparator, General usage)

Week 9 Operational Amplifiers (Comparator, Rectifier)

Week 10 I-V Characteristics and Transient Response

Weeks 11-15 Intense work on labs

Lab List


  1. Food and drink in limited quantities (snacks, not meals) are permitted in restricted areas (not near electronics) and will be revoked if proper cleanliness is found wanting.

  2. Cell phones must be in vibrate mode and are only to be answered for emergencies (step outside please).

  3. Common courtesy is to apply at all times.


COLLEGE CLOSED: No classes - President's Day.

Monday, February 20

Midterm - middle of semester; classes will speed up

Wednesday, March 8

Spring break. COLLEGE CLOSED for the week. No classes.

Monday-Sunday, April 10 to April 16

Last day to withdraw from full semester classes

Friday, April 21

Last Day of regular classes for the Spring Semester

Monday, May 8

Final Hand-in of labs

Monday, May 15


This is an extra lab to EGR 2030, EGR 2440, EGR 2050, and EGR 2300. The tentative lab list above right now only reflects the EGR 2030/EGR 2440 portion of this course.