ENSC 320-3 ELECTRIC CIRCUITS II

Spring 2008
ENSC 320
ELECTRIC CIRCUITS II

(3-1-1)

TOPICS ASSIGNMENTS EXAMS TEXTBOOKS SCHEDULE

STAFF LAB TUTORIALS WEEK IN REVIEW WEB SITES INFO

Current count of email messages related to ENSC 320 exchanged this term: 672.

Course description: ENSC 320 is a second course on electric circuits. It is intended both to enhance the knowledge of students with regard to electric circuits and to develop skills in analysis. Although the focus is electric circuits, the theory and skills learned are useful in other areas as well. For example, the ability to analyze electric circuits gives one the ability to analyze systems incorporating many other phenomena, such as mechanical, thermal and acoustic, where other physical quantities play similar roles to those of current and voltage.

Prerequisites: ENSC 220.

TOPICS:

Analysis of Circuits in the Time Domain:
Review of differential equation analysis of linear circuits. Treatment of initial conditions. Zero state and zero input responses. Properties of more general linear time invariant systems in continuous time. Convolution, unit impulse.
Laplace Transform Analysis of Circuits:
The Laplace transform and its inversion by partial fractions. Properties: multiplication-convolution, differentiation, initial and final value theorems. Circuits in the s-domain: transfer function, impedance, circuit reduction, initial conditions. Series and parallel decompositions. Pole-zero diagrams related to time domain behavior.
Frequency Response, Filters, and Resonance:
Frequency response. High-pass and low-pass networks. Half-power frequencies. Frequency response from pole-zero locations and Bode plots. Bandpass filters and resonance. Natural frequency and damping ratio. RLC series circuit; series resonance. Quality factor. RLC parallel circuit; parallel resonance. Practical LC parallel circuit. Series-parallel conversions. Locus diagrams.
Filter Design:
Filter classes: Butterworth, Chebyshev. Implementation diagrams, quadratic sections. State variable description. Active filter implementation: Sallen-Key and state variable filters. Other active filter configurations.
Mutual Inductance and Transformers:
Mutual inductance. Coupling coefficient. Analysis of coupled coils. Dot rule. Energy in a pair of coupled coils. Conductively coupled equivalent circuits. Linear transformer. Ideal transformer. Autotransformer. Reflected impedance.
Two-Port Networks:
Terminals and ports, z-parameters. t-equivalent of reciprocal networks. y-parameters. Pi- equivalent of reciprocal networks. Applications of terminal characteristics. Conversion between z and y parameters. h and g parameters. Transmission parameters. Interconnecting two-port networks. Choice of parameter type.
Listed are additional topics that will not be covered. They are currently taught in ENSC 220:
AC Power:
Power in time domain. Power in sinusoidal steady state. Average or real power. Reactive power. Summary of AC power in R, L, and C. Exchange of energy between an inductor and a capacitor. Complex power, apparent power, and power triangle. Parallel-connected networks. Power factor improvement. Maximum power transfer.
Polyphase Circuits:
Introduction. Two-phase systems. Three-phase systems. Wye and Delta systems. Phasor voltages. Balanced Delta-connected loads. Balanced four-wire, Wye-connected loads. Equivalent Wye and Delta-connections. Single-line equivalent circuit for balanced three-phase loads. Unbalanced Delta-connected load. Unbalanced Wye-connected load. Three phase power. Power Measurement.

ASSIGNMENTS:
Posted weekly on Friday. Due by the following Friday (midnight: 11:59 PM + 1 minute).

Assignment #7 Assignment #8

Assignment #13

MIDTERM EXAMS:
Wednesday, February 13, 13:30 - 14:20, C 9002
Wednesday, March 19, 13:30 - 14:20, C 9002

FINAL EXAM:
Tuesday, April 15, 12:00 PM - 3:00 PM, EDB 7618

GRADING:
Attendance 5%, Assignments 15%, Laboratory 15%, Midterm 1 10%, Midterm 2 10%, and Final 45%.
Click here to see your scores, midterm exam 1, midterm exam 2, final exam, and the total scores distribution charts.

TEXTBOOKS:

Any of the books listed below may be used for the course. They will be available through the library reserve. They are listed in alphabetical order:
Textbooks used to assign homework problems:
- Raymond A. DeCarlo and Pen-Min Lin, Linear Circuit Analysis: Time Domain, Phasors, and Laplace Transforms Approaches, 2/e, Oxford University Press, Cambridge, MA, 2001. (4 hours)
  Errata page
- James W. Nilsson and Susan A. Riedel, Electric Circuits Revisited and PSpice Supplement Package, 7/e, Prentice Hall, Upper Saddle River, NJ, 2005. (4 hours)
Additional references on the same topic. Listed in alphabetical order:
- Norman Balabanian, Electric Circuits, McGraw Hill, New York, NY, 1994. (4 hours)
  Errata page
- Artice M. Davis, Linear Circuit Analysis, PWS Publishing Co., Boston, MA 1998. (4 hours)
- Richard C. Dorf and James A. Svoboda, Introduction to Electric Circuits (Fourth edition), John Wiley & Sons, 1998. (4 hours)
- Joseph Edminster and Mahmood Nahvi, Schaum's Electronic Tutor, Electric Circuits, Third Edition, McGraw Hill, New York, NY, 1996. (4 hours)
- Sergio Franco, Electric Circuits Fundamentals, Oxford University Press, Cambridge, MA, 1995. (4 hours)
- Michael Reed and Ron Rohrer, Applied Introductory Circuit Analysis, Prentice Hall, Upper Saddle River, NJ, 1999. (3 days)
- Roland E. Thomas and Albert J. Rosa, The Analysis and Design of Linear Circuits, 3e, John Wiley, 2000. (4 hours)

References on filter design:
- Gabor C. Temes and S. K. Mitra, Modern Filter Theory and Design, John Wiley and Sons, New York, 1973.
- Adel S. Sedra and Peter O. Brackett, Filter Theory and Design: Active and Passive, Matrix Publishers, Champaign, IL, 1978.
- L. P. Huelsman and P. E. Allen, Introduction to the Theory and Design of Active Filters, McGraw Hill, New York, 1980.
- Richard W. Daniels, Approximation Methods for Electronic Filter Design, McGraw Hill, New York, 1974.

A great source of interesting information:
- Richard M. White and Roger W. Doering, Electrical Engineering Uncovered, 1/e, Prentice Hall, Englewood, Cliffs, NJ, 1997. (24 hours)

Check the status of the books on reserve for ENSC 320 by typing "ENSC 320" (with the space) in the search window.

SCHEDULE:
Lectures:
Ljiljana Trajkovic ljilja at cs.sfu.ca
Mondays 13:30 - 15:20 in AQ 3153
Wednesdays 13:30 - 14:20 in C 9002

Tutorials:
Tuesdays 9:30 - 10:20 in AQ 2122: Yong Zhang yza30 at sfu.ca
Wednesdays 8:30 - 9:20 in AQ 5007: Mohamadreza Najiminaini mna28 at sfu.ca
Thursdays 8:30 - 9:20 in AQ 5006: Zhouming Tang zta3 at sfu.ca
Fridays 11:30 - 12:20 in AQ 5007: Yong Zhang yza30 at sfu.ca

Labs:
ENSC 9800 Laboratories (open lab)

PROFESSOR:

Ljiljana Trajkovic
ASB 9811
Tel.: (778) 782-3998
ljilja at cs.sfu.ca
Office hours: Thursdays: 14:00 - 15:00.

TEACHING ASSISTANTS:

Yong Zhang
yza30 at sfu.ca
Tutorial: Tuesdays 9:30 - 10:20 in AQ 2122
Office hours: Mondays: 12:00 - 13:00 in ASB 9800 Laboratories (Lab 1)
Mohamadreza Najiminaini
mna28 at sfu.ca
Tutorial: Wednesday 8:30 - 9:20 in AQ 5007
Office hours: Tuesdays: 15:00 - 16:00 in ASB 9800 Laboratories (Lab 1)
Zhouming Tang
zta3 at sfu.ca
Tutorial: Thursdays 8:30 - 9:20 in AQ 5006
Office hours: Wednesdays 11:00 - 12:00 in ASB 9800 Laboratories (Lab 1)
Yong Zhang
yza30 at sfu.ca
Tutorial: Fridays 11:30 - 12:20 in AQ 5007
Office hours: Mondays 12:00 - 13:00 in ASB 9800 Laboratories (Lab 1)

LABORATORY STAFF:

Laboratory Technician:
Fred Heep
ASB 9856
Tel.: (778) 782-4629
heep at sfu.ca
Store hours: M - F 9:00 - 10:0, 11:00 - 13:00, 14:00 - 16:00.
Laboratory Technician:
Marius Haiducu
ASB 9874
Tel.: (778) 782-7319
mhaiducu at sfu.ca

LABORATORIES:

Teams

(slightly revised) Design and implementation of an active filter (PDF file), reports are due on Sunday, April 6, 2008 (midnight: 11:59 PM + 1 minute).

Quad op amp schematics

Instructions for writing ENSC 320 Lab reports

The Lab was adopted from the previous offerings of the ENSC 320 course.
Credits for their design are due to the past instructors of ENSC 320.

Writing Laboratory Reports & Journals

Ash's Lab intro to ENSC 220 Lab: slides (lecture, demo) and pdf files (lecture, demo).

ENSC 9800 Lab photo courtesy of Ash Parameswaran:

Lab bench orientation:

Part 1 - PS and DMM

Part 2 - FG and OS

TUTORIALS:
Tuesdays 9:30 - 10:20 in AQ 2122: Yong Zhang yza30 at sfu.ca
Wednesdays 8:30 - 9:20 in AQ 5007: Mohamadreza Najiminaini mna28 at sfu.ca
Thursdays 8:30 - 9:20 in AQ 5006: Zhouming Tang zta3 at sfu.ca
Fridays 11:30 - 12:20 in AQ 5007: Mohamadreza Najiminaini mna28 at sfu.ca

WEEK IN REVIEW:

13. April 7, 2008

WEB SITES OF INTEREST:

MATLAB Tutorials: Matlab-Primer.pdf and MIT-Matlab-Tutorial.pdf

ENSC 320 Electric Circuits II, Summer 2007

ENSC 320 Electric Circuits II, Summer 2006

ENSC 320 Electric Circuits II, Spring 2007

ENSC 320 Electric Circuits II, Spring 2005
Generic links:

The School of Engineering Science, Undergraduate Program

ENSC 320 Electric Circuits II, Undergraduate Course

ENSC 320 Electric Circuits II, Course Description

ENSC 220:

ENSC 220 Electric Circuits I, Fall 2001

INFO:

AUDIO RECORDING of ENSC 320 LECTURES:
Audio recordings of ENSC 320 lectures are available online. Access is limited to students enrolled in ENSC 320 this term.
ENSC 320 FOLDERS:
Lecture notes will not be made available in Spring 2008. Students taking the course are kindly advised to refer to the recommended texts.
Summer 2007 info
ENSC 320 URL:
http://www.ensc.sfu.ca/people/faculty/ljilja/ENSC320/
ENSC 320 MAILING LIST:
ensc-320 at sfu.ca
ENSC 320 NEWSGROUP:
sfu.class.ensc.ensc320
ENSC 320 CAUCUS:
Ensc320 Spring08
Information
SAMPLES of PAST ENSC 320 EXAMS:
List of PDF files

TOPICS ASSIGNMENTS EXAMS TEXTBOOKS SCHEDULE

STAFF LAB TUTORIALS WEEK IN REVIEW WEB SITES INFO

Created by
Ljiljana Trajkovic
ljilja at cs.sfu.ca

Last modified: Sunday April 20 23:01:20 PDT 2008.

Spring 2008 ENSC 320 ELECTRIC CIRCUITS II

Spring 2008
ENSC 320
ELECTRIC CIRCUITS II