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ECEN3713 Network Analysis
Lecture #12
8 February 2016
Dr. George Scheets
www.okstate.edu/elec-eng/scheets/ecen3714
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Read 13.3
Problems: 12.52, 13.7, 13.9
Friday, Exam #1
 No Initial Conditions (i.e. everything = 0 when t < 0)
 Covers Section 12.1 – 13.5 inclusive
Quiz 3 Results ☺
ECEN3713 Network Analysis
Lecture #13
10 February 2016
Dr. George Scheets
www.okstate.edu/elec-eng/scheets/ecen3714


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Read 13.4 & 13.5
Problems: Old Exam #1
Friday, Exam #1
 No Initial Conditions (i.e. everything = 0 when t < 0)
 Covers Section 12.1 – 13.5 inclusive
 Open Book, Notes, Brain
Closed Instructor, Neighbor
Quiz #3 Results
 Hi = 9.8, Low = 3, Ave. = 6.79, Standard Deviation = 2.07
OSU IEEE
February General Meeting
 5:30-6:30 pm, Wednesday, 17 February
 ES201b
 Reps from Zeeco will
 present
 Dinner will be served
+ 3 points extra credit
 All are invited

Testable Material
Network Analysis
Testable Material
Lecture
Network Analysis
Testable Material
Lecture
Network Analysis
Textbook
Testable Material
Lecture
Textbook
Homework
Network Analysis
To Maximize your score…
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Budget your time
 Don't

get sucked into 1 problem
Tackle all the problems
 Partial
Credit is awarded
Show intermediate results
 Obtain correct answer
 Tests are full period, 4 pages, 100 points

 Open
book & notes
S Domain Voltage & Currents
No initial conditions
in Exam #1. → Grey
terms not needed.
Resistor (v = iR)
V(s) = I(s) R
I(s) = V(s)/R
 Capacitor (i = C dv/dt)
I(s) = sCV(s) – Cv(0-)
V(s) = I(s)/(sC) + v(0-)/s
 Inductor (v = L di/dt)
V(s) = sLI(s) – Li(0-)
I(s) = V(s)/(sL) + i(0-)/s

[KVL]
[KCL]
[KCL]
[KVL]
[KVL]
[KCL]
Georg Ohm
Born 1789
 Died 1854
 German Mathematician
& Physicist
 Figured out voltage = (current)(resistance)
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 Published
in 1827 text
"The Galvanic Circuit Investigated
Mathematically"
source: Wikipedia
Michael Faraday
Born 1791
 Died 1867
 English Chemist
& Physicist
 Investigated magnetism and electricity
 "farad" named after him in 1861

source: Wikipedia
Joseph Henry
Born 1797
 Died 1878
 American Scientist
 First Secretary of Smithsonian Institute
 Early developer of electro-magnets
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 Discoverer
of inductance
 So did Faraday at about the same time
source: Wikipedia
Gustav Kirchoff
Born 1824
 Died 1887
 German Physicist
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
KCL & KVL formulated in 1852
Doctoral Dissertation
source: Wikipedia
TABLE 13.1
Electronic Circuits, Tenth Edition
James W. Nilsson | Susan A. Riedel
Summary of the s-Domain Equivalent
Circuits
Copyright ©2015, 2008, 2005 by Pearson Education, Inc.
All rights reserved.
2016
Quiz #3
Transfer Function
H(s) and Vout(s)
in the
Frequency Domain
{H(jω) and Vout(jω)}
Recall s = σ + jω.
Here σ = 0.
Quiz #3
Quiz #3
Quiz #3
Peak in
Transfer Function
H(jω) indicates
system is resonant
at that frequency.
Quiz #3
Peak in
output voltage
spectrum Vout(jω)
indicates signal is
oscillating.