I. CATALOG DESCRIPTION:
ET152 CIRCUITS 2 C 3, P 2, CR 4
This course details AC circuit analysis. Topics include Phasor representation of sinusoidal voltage, currents, impedance, power solution of RLC circuits, frequency response and series and parallel resonance. Three phase power transformers and Fourier analysis of complex waveforms are introduced. The use of computer solutions in problem solving is included.
Prerequisites: ET151 Circuits 1, ET153 Introduction to Electronics, ET154 Computer Programming or IS101 Introduction to Personal Computers, or permission of instructor.
Texts: Introductory Circuit Analysis 12E, R. Boylestad Prentice
Hall Publishing Company
III. STUDENT LEARNING OUTCOMES:
The student will demonstrate a thorough knowledge of the AC steady state behavior of electrical circuits.
The student will demonstrate familiarity with the phasor solution of AC circuits and AC power relationships.
The student will demonstrate knowledge of the concepts of frequency response and series and parallel resonant circuits.
The student will use a mathematical and problem solving approach for circuit analysis, based on fundamental AC circuit principles and math concepts. This will include the use of computer simulations.
The student will demonstrate facility at constructing and trouble shooting basic AC circuits in the laboratory with proper use of test equipment.
The student will demonstrate appropriate communication skills, particularly technical reports through the laboratory.
The student will demonstrate the ability to work as part of a technical team, particularly in the laboratory.
This is the second in a sequence of two electrical circuits courses. Success in this course requires a good working knowledge of algebra and trigonometry, along with a thorough understanding of the concepts presented in ET151 Circuits 1. Simply stated, this course is an AC version of Circuits 1. Combination RLC circuits are examined in great depth. Topics include impedance, frequency response, and resonance. Three-phase power, transformers, and Fourier analysis of complex waveforms are introduced. If you do not already have one, purchase of a scientific calculator that will perform simultaneous equation solutions with complex coefficients is strongly advised. A minimum capability of 5 unknowns is desired. Examples include the TI-86 and TI-89. Also, it will be helpful to bring a set of colored pencils or pens to lecture (3 or 4 colors) because we create numerous simultaneous waveform plots. For lab, you'll need the standard array of goodies as used throughout this program (breadboard, DMM, small handtools, hook-up leads, etc.) Unless otherwise specified, all lab exercises require a non-formal report due no later than one week after the exercise. Late penalty is one letter grade for the first half week, two letter grades for the second half week. Reports are not accepted beyond two weeks and receive a grade of 0. Remember, plagiarism is grounds for failure.
Link to the Boylestad website for more info, self-test materials, etc.
An on-line resource covering a variety of electrical circuit topics and reference material may be found at: www.allaboutcircuits.com. A free on-line circuit simulator is available at www.partsim.com.
Week-by-week progress and assignments
The problem numbers are for the 12th edition of the text. If you have another edition of the text, please note that there are some changes in the problem numbers. The laboratory manual may be downloaded as a doc or pdf file at the bottom of this page.
We begin with RC and RL transients. We then transition to AC concepts of time varying quantities: sinusoidal functions and waveforms, and calculation of average and RMS value.
This week we introduce AC power and complex numbers. Complex numbers are extremely important- you can't do the remaining material without them, so make sure that you master the concepts.
We now begin elementary AC network analysis in chapter 15. The first topic is series networks.
This week we look at parallel networks and introduce series-parallel networks.
We conclude with series-parallel networks and have a test.
Our next major topic is network theorems and analysis. This will be spread over a few weeks. This week we start with chapter 17 on methods of analysis (source conversions, dependent sources, mesh, nodal, etc.)
We finish off methods of analysis and begin network theorems (Superposition, Thevenin, Norton).
This week we conclude network theorems (Maximum Power Transfer, Substitution, etc). By the end of the week we'll begin AC power.
We finish AC power this week and have a test (probably the end of the week).
This week we begin another major topic: frequency response and resonance. We will be working through chapter 20 and 21 concurrently. Only a portion of chapter 21 will be examined, primarily as applications. The first item of interest is series resonance. This will take up about one week.
This week we spend on parallel resonance.
When we have completed resonance, we begin with chapter 23, Polyphase Power.
We finish off polyphase power and begin chapter 25, Transformers (end of the week).
We wrap up transformers and have our last in-class test (time permitting).
Sine Wave Notes
Basic series RL MultiSim example using Transient Analysis
Weekend Fun Worksheet
Mesh, Nodal, et al. Worksheet
Parallel-Series Transform Proofs
Resonance Problems Worksheet
Laboratory Manual for AC Electrical Circuits (doc)
Laboratory Manual for AC Electrical Circuits (pdf)
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