NORTHWESTERN
UNIVERSITY
Department
of Electrical and Computer Engineering
COURSE TITLE: ECE 221 Fundamentals of Circuits
CATALOG DESCRIPTION: Review of fundamental concepts
in electrical circuits. Circuit analysis and network theorems; linearity and
superposition; series/parallel combinations of R, L, and C circuits; sinusoidal
forcing; complex frequency and Bode plots; mutual inductance and transformers;
two port networks; Elements of Fourier analysis; response of circuits to
periodic non-sinusoidal sources.
REQUIRED TEXT: Hayt, Kemmerly and Durbin Engineering Circuit Analysis, 8th
edition, McGraw Hill, 2012.
COURSE INSTRUCTOR: Prof. Martin Plonus
Office: M390; Tel:
491-3445; E-mail: plonus@eecs.northwestern.edu
Office Hours: Wednesday,
Friday: 3:30-4:30 in M390 ??
COURSE GOALS: To provide an introduction
for sophomores in the field of electrical engineering to the fundamental
concepts of electrical circuits. This course will be one of five fundamentals
courses required of all electrical engineering majors. A further goal is to
prepare students to take advanced courses in the area of circuits and
electronics.
PREREQUISITES: ECE 202
DETAILED COURSE TOPICS:
Week 1: Voltage, Current, Power,
Circuits, Kirchhoff's Laws, Circuit Analysis – Nodal and Mesh methods.
Week 2: Linearity and Superposition,
Ideal and Practical Sources, Source Transformations, Thevenin
and Norton Equivalents, Maximum Power Transfer.
Week 3: Ideal Op Amp Circuits, Capacitors and Inductors, Series/Parallel Combinations
of L and C, Integrating and Differentiating Op Amps
Week 4: Transient Response, Forced
Response and Complete Response in RL and RC circuits, Step Function, Time
Constants, RLC Circuits.
Week 5: Overdamped, Critically damped and Underdamped RLC
Circuits, Initial Conditions, Relation to Mechanical Systems.
Week 6: Sinusoidal Forcing, Sinusoidal Steady-State, Phasors,
Impedance and Admittance, Phasor Analysis and Phasor Diagrams, Nodal and Mesh
Analysis Revisited.
Week 7: Instantaneous and Average Power,
Effective or RMS, Complex Power, Power Factor, Intro to Poly-phase Circuits.
Week 8: Mutual Inductance, Linear and
Ideal Transformers, Circuits with Mutual Inductance
Week 9: Complex Frequency, S-Plane, Poles
and Zeros, Response Function, Frequency Response of Series/Parallel Resonances,
High-Q Circuits.
Week 10: Bode Plots, Two
Port Networks, Admittance, Impedance, Hybrid, and Transmittance Parameters.
COMPUTER USAGE: Use of PSPICE for
circuit modeling and instrument control using HP-Vee.
READING AND HOMEWORK ASSIGNMENTS: Weekly homeworks will be assigned to test concepts taught in class.
Week 1: pp 1-29
39-55
55-66
Week 2: pp 79-109
123-140
141-159
Week 3: pp 175-194
217-235
235-249
Week 4: pp 261-282
282-289
289-308
Week 5: pp 321-333
334-345
Midterm
Week 6: pp 345-363
371-387
387-397
Week 7: pp 421-438
438-448
Week 8: pp 457-464, 493-504
505-511
512-523
Week 9: pp 533-540, 571-578, 598-611
Review
619-633
633-644
Week 10: pp 648-657
687-707
Final: Wednesday, June 8,
2016, 3-5 pm, Rm M177
LABORATORY PROJECTS: There will be no
lab during the first and the last week of classes. The lab time during the last
week, however, will be used for a make-up lab (for those who may have missed a
lab during the quarter for reasons of medical emergency or equivalent).
Lab 1: Introduction to HP VEE and PSPICE
Lab 2: Thevenin's / Norton's Theorem
and Kirchhoff's Laws
Lab 3: First Order Transient Responses
Lab 4: Second Order Transient Responses
Lab 5: Frequency Response of RC Circuits
Lab 6: Frequency Response of RLC
Circuits
Lab 7: Filters
GRADES: The following formula will be
used to compute the final grade:
Homeworks - 20%; Labs - 20%; Exams - 60% [midterm (30%)) and final exam (30%). Note: A 20-min impromptu exam might be given
at the end of May, which would count 10% towards your final grade].
One 8 1/2 by 11 cheat-sheet (1-sided) allowed
for the midterm.
Since the final is cumulative, in addition
to an 8½ by 11 final cheat sheet (1-sided), you can also
use the midterm cheat sheet.
COURSE OBJECTIVES: When a student completes
this course, s/he should be able to:
1. Understand the fundamentals of the sub-area of electrical
circuits within the field of electrical engineering so as to get excited about
the area.
2. Have a basic
understanding of circuit analysis concepts and network theorems.
3. Apply linearity
and superposition concepts to analyze RL, RC, and RLC circuits in time and
frequency domains.
4. To apply Phasor
Analysis to Sinusoidal Steady State Circuits
5. Understand the
relationship between under-, critically-, over-damped circuits and resonant circuits
to the position of poles in the complex frequency s-domain.
6. Analyze two port
networks.
7. Introduce Fourier
analysis to evaluate responses of circuits to periodic sources.
8. Take advanced
courses in the area of circuits and electronics.
COURSE POLICY:
1.Attendance at all
lectures is expected. Class attendance will be taken on random days. A miss will cause a point drop in
the final grade.
2. No make-ups for midterm and final.
3. All homework and labs must be turned in.
4. Points deducted for late homework.
5. Help for homework, consult the TA's during
counseling hours; help for lecture material and concepts consult the instructor
during office hours.
6. Must see instructor (in M390) at least once during
the quarter for individual consultation.
7. Regular homework is due in class on Friday. The TA’s
will return graded homework on Monday in class. The students should look over
their graded homework carefully on Monday and develop questions for the TA’s
which will be present in Tuesday’s class. The entire class can then participate
in the discussion. This is an efficient way to address HW questions – the
alternative is 40 or more students individually seeing the TA’s with perhaps
the same question
Instructions Write-up