Department of Physical Science and Engineering
Engineering Program
Welcome to Circuit Laboratory!
EGR 245 Electronic and Digital Circuit Laboratory
Spring 2015 (DRAFT!!!! - This has old old stuff mixed with new stuff (dates are good))

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


OTHER LOCATIONS: CH-308 (Faculty Resource Room) and CH-100 (Department)

PHONE NUMBERS: 301-386-7536 (Office) or 301-322-0420 (Department Main Line)


To facilitate e-mail communication with me, please include the following code: The course designation (EGR 2450) in the subject of any e-mails to me during the Spring 2014 semester.

Example: EGR245: Need help on how to write a lab report


OFFICE HOURS: MW 4:00-4:30pm and 5:45-7:45pm; TTh after Materials when possible, 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 (voltmeter, oscilloscope, power supply, function generator). Design, construction and performance measurement of circuits containing passive elements, digital logic circuits, transformers, diodes and operational amplifiers. Transient and steady state response.


EGR 203 Complete or concurrent; EGR 244 Completed; or permission of instructors for exceptional students


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

  1. Demonstrate an ability to design and conduct experiments.

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

  3. 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.

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

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

  6. 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.


Practical Electronics for Inventors 3rd Edition.  Scherz, Paul and Monk, Simon  McGraw-Hill (2013). 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 5th Edition.  Rizzoni, Giorgio.  McGraw-Hill (2007).
Schaum's Outline of Electric Circuits 6th Edition.  Nahvi, Mahmood and Edminister, Joseph A.  McGraw-Hill (2003).

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)


  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 outline is subject to change (especially this summer).

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


  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.


Last day to change from audit to credit or credit to audit for full semester classes

Friday, February 6

COLLEGE CLOSED: No classes - President's Day.

Monday, February 16

Last day to apply for spring graduation

Wednesday, February 17

Midterm - middle of semester; classes will speed up

Wednesday, March 11

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

Monday-Sunday, March 30 to April 5

Last day to withdraw from full semester classes

Friday, April 10

Last Day of regular classes for the Spring Semester

Monday, May 4

Final exam

Thursday, May 7


This is a lab course that is in EGR 2030...this course will eventual be obsolute.