Kirkwood Community College Course Syllabus
Electric Circuits II
ELT-341-CRF01
Spring 2015
Instructor
Jim Trepka
Instructor
Information
Office: 140 Jones Hall
Telephone: 398-7146
Email: jim.trepka@kirkwood.edu
Home Page: http://faculty.kirkwood.edu/jtrepka/
Section
Information
0253413
Monday 10:10-11:05
Tuesday 10:10-11:05
Wednesday 10:10-11:05
Thursday 10:10-11:05
Friday 9:05-11:20
Credit hours
5
Contact hours
4 hours lecture / 2 hours lab
Co-requisites
MAT-746
Prerequisites
ELT-272, ELT-340
Course
Description
Adapts DC circuit analysis techniques to the AC realm. Examines the
fundamental concepts of passive filters and frequency response. Includes
computer simulations and extensive laboratory sessions.
1. Circuit Analysis with Devices: Theory and Practice, Robbins & Miller,
5th Edition, (Delmar Learning).
ISBN 13: 9781133281009
ISBN 10: 1133281001
Required Course
Materials
2. Lab manual to accompany text, Robbins & Miller, (Delmar Learning).
ISBN 13: 9781133281023
ISBN 10: 1133281028
Books and course materials for this course are available at the Kirkwood
Bookstore.
Course Student
Learning
Outcomes and
Competencies
Upon completion of this course students will be able to:
Course Outcomes
1.
Compute and analyze AC signal characteristics including R, L, and C
Impedances
2.
3.
4.
5.
Compute and measure AC power systems including transformers
and three-phase systems.
Define, compute, and measure AC series-parallel circuits and bridge
network
Define, compute, and measure series and parallel resonance circuits
Analyze low-pass, high-pass, band-pass, and band-reject filters.
Course Competencies (wording from Circuit Analysis with Devices:
Theory and Practice, Robbins & Miller, 1st Edition, Delmar Learning)
Chapter 15 Objectives
- Explain how AC voltages and currents differ from DC
- Draw waveforms for AC voltage and currents and explain what they
mean.
- Explain the voltage polarity and current direction conventions used for
AC.
- Describe the basic AC generator and explain how AC voltage is
generated.
- Define and compute frequency, period, amplitude, and peak-to-peak
values.
- Compute instantaneous sinusoidal voltage or current at any instant in
time.
- Define the relationships between ω, T, and f for a sine wave.
- Define and compute phase differences between waveforms.
- Use phasors to represent sinusoidal voltages and currents.
- Determine phase relationships between waveforms using phasors.
- Define and compute average values for time-varying waveforms.
- Define and compute effective (rms) values for time-varying waveforms.
- Use MultiSIM to study AC waveforms.
Chapter 16 Objectives
- Express complex numbers in rectangular and polar forms.
- Represent AC voltage and current phasors as complex numbers.
- Represent AC sources in transformed form.
- Add and subtract currents and voltages using phasors.
- Compute inductive and capacitive reactance
- Determine voltages and currents in simple AC circuits.
- Explain the impedance concept.
- Determine impedance for R, L, and C circuit elements.
- Determine voltages and currents in simple AC circuits using the
impedance concept.
- Use MultiSIM to solve simple AC circuit problems.
Chapter 17 Objectives
- Explain what is meant by active, reactive, and apparent power.
- Compute the active power to a load.
- Compute the reactive power to a load.
- Compute the apparent power to a load.
- Construct and use the power triangle to analyze power to complex
loads.
- Compute power factor.
- Explain why equipment is related in VA instead of watts.
- Measure power in single-phase circuits.
- Describe why effective resistance differs from geometric resistance.
- Describe energy relations in AC circuits.
Chapter 18 Objectives
- Apply Ohm’s law to analyze simple series circuits.
- Apply the voltage divider rule to determine the voltage across any
element in a series circuit.
- Apply Kirshhoff’s voltage law to verify that the summation of voltages
around a closed loop is equal to zero.
- Apply Kirchhoff’s current law to verify that the summation of currents
entering a node is equal to the summation of currents leaving the same
node.
- Determine unknown voltage, current, and power for any series/parallel
circuit.
- Determine the series or parallel equivalent of any network consisting of
a combination of resistors, inductors, and capacitors.
Chapter 19 Objectives
- Convert an AC voltage source into its equivalent current source, and
conversely, convert a current source into and equivalent voltage source.
- Solve for the current o9r voltage in a circuit having either a dependent
current source of a dependent voltage source.
- Set up simultaneous linear equations to solve an AC circuit using mesh
analysis.
- Use complex determinants to find the solutions for a given set of linear
equations.
- Set up simultaneous linear equations to solve an AC circuit using nodal
analysis.
- Perform delta-to-wye and wye-to-delta conversions for circuits having
reactive elements.
- Solve for the balanced condition in a given AC bridge circuit. In
particular, you will examine the Maxwell, Hay, and Schering bridges.
- Use MultiSIM to analyze bridge circuits.
Chapter 20 Objectives
- Apply the superposition theorem to determine the voltage across or
current through any component in a given circuit.
- Determine the Thévenin equivalent of circuits having independent
and/or dependent sources.
- Determine the Norton equivalent of circuits having independent and/or
dependent sources.
- Apply the maximum power transfer theorem to determine the load
impedance for which maximum power is transferred to the load from a
given circuit.
- Use MultiSIM to find the Thévenin and Norton equivalents of circuits
having either independent of dependent sources.
Chapter 21 Objectives
- Determine the resonant frequency and bandwidth of a simple series or
parallel circuit.
- Determine the voltages, currents, and power of elements in a resonant
circuit.
- Sketch the impedance, current, and power response curves of a series
resonant circuit.
- Find the quality factor, Q, of a resonant circuit and use Q to determine
the bandwidth for a given set of conditions.
- Explain the dependence of bandwidth on the L/C ratio and on R for both
a series and a parallel resonant circuit.
- Design a resonant circuit for a given se of parameters.
- Convert a series RL network into an equivalent parallel network for a
given frequency.
Chapter 22 Objectives
- Evaluate the power gain and voltage gain of a given system.
- Express power gain and voltage gain in decibels.
- Express power levels in dBm and voltage level in dBV and use these
levels to determine power gain and voltage gain.
- Identify and design simple (first-order) RL and RC low-pass and highpass filters and explain the principles of operation of each type of filter.
- Write the standard form of a transfer function for a given filter. The
circuits that are studied will include band-pass and band-stop as well as
low- and high-pass circuits.
- Compute τc and use the time constant to determine the cutoff frequency
(ies) in both radians per second and hertz for the transfer function of
any firs-order filter.
- Sketch the Bode plots showing the frequency response of voltage gain
and phase shift of any first-order filter.
Chapter 23 Objectives
- Describe how a transformer couples energy from its primary to its
secondary via a changing magnetic field.
- Describe basic transformer construction.
- Use the dot convention to determine transformer phasing.
- Determine voltage and current ratios from the turns ratio for iron-core
transformers.
- Compute voltage and currents in circuits containing iron-core and aircore transformers.
- Use transformers to impedance match loads.
- Describe some basic transformer applications.
- Determine transformer equivalent circuits.
- Compute iron-core transformer efficiency.
- Use MultiSIM to solve circuits with transformers and coupled circuits.
Lab Objectives (wording from Lab manual to accompany Circuit Analysis
with Devices: Theory and Practice, Robbins & Miller, 3rd Edition, Delmar
Learning)
Lab 13 Objectives
- Measure rms values for sinusoidal voltage.
- Measure superimposed AC and dc voltages.
- Measure AC current using a sensing resistor.
- Display two waveforms simultaneously on a dual channel oscilloscope.
- Measure phase displacement with a dual channel oscilloscope.
- Measure voltage using differential measurement techniques.
Lab 14 Objectives
- Measure phase difference between voltage and current in a capacitance.
- Measure capacitive reactance and verify theoretically.
- Determine the effect of frequency on capacitive reactance.
Lab 15 Objectives
- Measure phase difference between voltage and current in an inductance.
- Measure inductive reactance and verify theoretically.
- Determine the effect of frequency on inductive reactance.
Lab 16 Objectives
- Measure power in a single phase circuit.
- Verify power relationships.
- Verify power factor relationships.
- Determine the effect of adding power factor correction.
Lab 17 Objectives
- Calculate current and voltages for a simple series ac circuit.
- Measure voltage magnitude and phase angle in a simple series AC
circuit.
- Verify Kirchhoff’s voltage law using measured results.
- Measure the internal impedance of a sinusoidal voltage source.
Lab 18 Objectives
- Measure voltages in a parallel circuit using an oscilloscope.
- Use an oscilloscope to indirectly measure current magnitude and phase
angles in a simple parallel AC circuit.
- Compare measure values to theoretical calculations and verify
Kirchhoff’s current law.
- Determine the power dissipated by a parallel AC circuit.
Lab 19 Objectives
- Analyze a series-parallel circuit to determine the current through and
voltage across each element in a series-parallel circuit.
- Measure voltage across each element in a series-parallel circuit using an
oscilloscope and use the measurements to determine the current
through each element of a series-parallel circuit.
- Calculate the power dissipated by each element in a circuit.
- Use measurements to verify that the actual powers dissipated
correspond to theory.
Lab 20 Objectives
- Calculate the Thévenin and Norton equivalents of an AC circuit.
- Measure the Thévenin (open circuit) voltage and the Norton (short
circuit) current of an AC circuit.
- Calculate the Thévenin impedance of a circuit using the measured
values of Thévenin voltage and Norton current.
- Measure the load impedance which results in a maximum transfer of
power to the load.
Lab 21 Objectives
- Calculate the resonant frequency of a series resonant circuit.
- Solve for the maximum output voltage of a resonant circuit using the
quality factor Q of the circuit.
- Measure the bandwidth of a series resonant circuit.
- Measure the impedance at frequencies above and below the resonant
frequency and observe that it is purely resistive only at resonance.
- Sketch the circuit current as a function of frequency and explain why the
response has a bell-shaped curve when plotted on a semi-logarithmic
graph.
Lab 22 Objectives
- Calculate the resonant frequency of a parallel resonant circuit.
- Solve for the maximum output voltage of a parallel resonant circuit.
- Measure the bandwidth of a parallel resonant circuit.
- Measure the impedance at frequencies above and below the resonant
frequency and observe that it is purely resistive at resonance.
- Sketch the output voltage as a function of frequency and explain why the
response has a bell-shaped curve when plotted on a semi-logarithmic
graph.
Lab 23 Objectives
- Develop the transfer function for a low-pass filter circuit.
- Determine the cutoff frequency of a low-pass filter circuit.
- Sketch the Bode plot of the transfer function for a low-pass filter.
- Compare the measure voltage gain response of a low-pass filter to the
theoretical asymptotic response predicted by a Bode plot.
- Explain why the voltage gain of a low-pass filter drops at a rate of 20 dB
for each decade increase in frequency.
Lab 24 Objectives
- Develop the transfer function for a high-pass filter circuit.
- Determine the cutoff frequency of a high-pass filter circuit.
- Sketch the Bode plot of the transfer function for a high-pass filter.
- Compare the measure voltage gain response of a high-pass filter to the
theoretical asymptotic response predicted by a Bode plot.
- Explain why the voltage gain of a high-pass filter increases at a rate of
20 dB/decade below the cutoff frequency.
Lab 25 Objectives
- Calculate the cutoff frequencies of a bandpass filter by examining the
low-pass and high-pass stages of a filter.
- Derive the transfer function for each stage of a bandpass filter.
- Sketch the Bode plot of a bandpass filter from the transfer function of
the individual stages.
- Explain why the slopes of the voltage gain response are 20 dB/decade
on each side of the cutoff frequencies.
Lab 27 Objectives
- Verify the turns ratio and phase relationships for a transformer.
- Verify the concept of reflected impedance.
- Determine the frequency response of an audio transformer.
Measure the regulation of a power transformer.
Late
Work/Make-up
Test Policy
Missed exams must be made up on or before the next class period. In a
rare situation where the exam can not be made up in that time period, the
student will be given an exam different than that taken by the rest of the
class.
Class Attendance
Policy and
College
Sponsored
Activities
Productive
Classroom
Learning
Environment
Plagiarism Policy
As stated in the Student handbook: In compliance with Public Law 105-244,
Kirkwood Community College makes a wide variety of general institutional
information available to students. For additional information, go to:
http://www.kirkwood.edu/site/index.php?p=32303
We believe that the best learning takes place in an environment where faculty and
students exhibit trust and mutual respect.
In a productive learning environment, faculty and students work cooperatively,
recognize and respect differences, model the values of character and citizenship,
and become lifelong learners.
Kirkwood Community College is a community of shared values, foremost of which
is a strong commitment to academic integrity, honorable conduct, and respect for
others. Through the honest completion of academic work, students sustain the
integrity of the college and promote a culture of civility, fairness, trust, and
respect among its members. Those who violate these standards must be held
responsible.
Kirkwood students are responsible for authenticating all work in a course. This
includes but is not limited to quizzes, exams, presentations, papers, journals, and
projects. For this reason, it is recommended that students engage in a verifiable
working process on assignments and conduct themselves during class in a
manner that does not lead to the suspicion of academic dishonesty. Examples of
Academic Dishonesty include but are not limited to: Plagiarism and Fabrication,
Misrepresentation, Cheating and Facilitation, and Impeding Fair and Equal Access
to the Education and Research Process.
It is the student’s responsibility to be aware of the behaviors that constitute
academic dishonesty. A detailed description of this policy and the sanctions
associated with it can be found here:
http://www.kirkwood.edu/site/index.php?p=32303
Campus Closings
Academic
Accommodations
Counseling and
Career Services
See Student Policies: General Policies and Student Rights
http://www.kirkwood.edu/site/index.php?p=32309
Students with specific academic and/or classroom needs may request individualized
accommodations. Students wishing to request accommodations should complete an
‘Accommodation Request Form’ which is available at the Learning Services office,
2063 Cedar Hall, or online at www.kirkwood.edu/accommodations. Students will be
asked to provide documentation supporting their request. An accommodation plan
must be completed each semester and given to instructors before academic
accommodations will be provided.
Free, confidential counseling services are available for Kirkwood Community
College students seeking career direction, academic support and individual
counseling. While college years are a time of personal growth, this time can be
accompanied by accelerated change and significant challenges that often bring
considerable stress. Counselors promote student emotional and intellectual well –
being. Call 319-398-5540 or visit www.kirkwood.edu/counseling to learn more.
Midterm grades
A midterm grade will be calculated and posted on EagleNet. The midterm grade is
a grade-in-progress, and will not affect your official GPA, nor will it impact
financial aid. The midterm grade has three purposes: first, to communicate your
academic performance; second, to provide opportunities for you to discuss your
progress with your instructor; and third, to allow Kirkwood to design collegewide intervention programs that will improve student success.
Unit Exams - Exams will be given after every 2 or 3 chapters totaling 35%
of your final grade. Missed exams must be made up on or before the next
class period. In a rare situation where the exam can not be made up in that
time period, the student will be given an exam that is different than that
taken by the rest of the class.
Final Exam - The final exam will be worth 20% of your final grade.
Homework – The homework schedule can be found at
http://faculty.kirkwood.edu/site/index.php?p=18775 . Homework will be
worth 20% of your final grade.
Labs - Labs will be worth 25% of your final grade. THERE WILL BE NO
MAKE UP LABS!!!
Class Room Participation, and Professional Conduct
Points will be deducted from the your final grade for the following:
1. Inappropriate language or jokes.
Student
Evaluation
2. Ringing of cell phones in class.
3. Disrupting the class.
4. Leaving class early.
5. Not cleaning up workspace at the end of the class.
After earning the Associates of Applied Science in Electronics Engineering
Technology at Kirkwood Community College, you may be working with
people from substantially different backgrounds than your own. Since the
Electronics Engineering Technology program is a career tech program,
respect for differences in the workplace will be a skill that will be fostered
in this program. You will be expected to show respect for those from
different nationalities, religions, gender, sexual orientations, and learning
abilities. This respect is expected during class, between class, and after
class. In other words, anytime you are in Jones Hall or its vicinity (i.e. parking lot, sidewalks, etc.). These are the same expectations that some
area employers have. Your final grade will be negatively impacted by each
violation of this policy.
Grading Scale
A
94 - 100
C
73 – 76.99
A-
90 – 93.99
C-
70 – 72.99
B+
87 – 89.99
D+
67 – 69.99
B
83 – 86.99
D
63 – 66.99
B-
80 – 82.99
D-
60 – 62.99
C+
77 – 79.99
F
59.99 and less
To find the last day to get a refund, go to EagleNet for Students, then Search
for Sections, then click the link for this term’s Last Day to Drop list.
https://eaglenet.kirkwood.edu/production/WebAdvisor?TOKENIDX=9443580219&typ
e=M&constituency=WBST&pid=CORE-WBST
Drop Date
The last date to drop this class for this term is April 22, 2016.
Details of the refund schedule can be found under Academic & Enrollment
Policies at: http://www.kirkwood.edu/catalog/2014-2015/refund-of-tuition_0.htm
Final Exam
Information
Final exams are scheduled during the last week of the term from May 4 to
May 10. The final exam for this class is scheduled on Friday May 6 at 10:10
am.
See Facilities: Emergency/Crisis Information
Emergency
Information
Other
Information
http://www.kirkwood.edu/site/index.php?p=7987
[If desired, list emergency phone numbers, department office locations, etc.]
[List here any information specific to the course, such as information regarding
exposure to hazardous chemicals, biohazard, invasive procedures, performance
expectations, and also a course timeline or calendar, if desired.]
Check Refund Policy at: www.kirkwood.edu/registration
Rev. 4/11 -- Rev. 5/11 -- Rev. 6/12
Rev. 8/14/12 -- Rev. 1/22/14 -- Rev. 7/29/14
Rev. 3/10/15 – Rev. 9/2/15