ENG 17 - Spring 2011

Circuits I
ENG 17 - Spring 2011
Lecture: MWF 4:10-5:00 in 1100 Social Sciences
Discussion Section 1: T 3:10-4:00, 116 Veimeyer, CRN 53100
Discussion Section 2: T 4:10-5:00, 116 Veimeyer, CRN 53101
Discussion Section 3: T 5:10-6:00, 1128 Bainer, CRN 53154
Discussion Section 4: T 6:10-7:00, 1128 Bainer, CRN 53155
Discussion Section 5: T 7:10-8:00, 1128 Bainer, CRN 53156
Discussion Section 6: R 3:10-4:00, 116 Veimeyer, CRN 53157
Discussion Section 7: R 4:10-5:00, 116 Veimeyer, CRN 53158
Discussion Section 8: R 5:10-6:00, 1128 Bainer, CRN 53159
Discussion Section 9: R 6:10-7:00, 1128 Bainer, CRN 53161
Discussion Section 10: R 7:10-8:00, 1128 Bainer, CRN 53162
(NEW!) Discussion Section 11: R 3:10-4:00, Giedt 1007, CRN 54021

Announcements:

Here are the final grades. Let Prof. Spencer know as soon as possible is you think there is an error.

Here are the solutions to the final exam.

There will be special pre-final exam office hours at the following times on Friday, June 3rd: 9:30 AM - 12:30 PM in 3089 Kemper (Prof. Spencer) and 3:10-7:00 PM in 2161 Kemper (TAs).

Here is the formula sheet for the final exam. You do not need to bring this with you, it will be provided. And here is my final exam from the fall - yours will be very different (like the midterms) but this will give some practice problems to work on (you've seen two of them already!) practice exam. This practice exam includes the solutions, but I strongly encourage you to give your best effort to solving the midterm on your own and only then look at the solutions. Do NOT FORGET that you will need to have a picture ID with you when you take this exam. Also, do NOT sit in the back two rows, we will reserve those for people who arrive late.

Here are the grades we have entered so far (midterm 2 and homework 4). If you think there is an error, bring the graded assignment to Prof. Spencer. The distribution of scores on Midterm 2 was: top 10% > 34, top 25% > 26, median = 19.5, top 75% > 13, top 90% > 8. If you received a 10 or below, you essentially failed the exam.

Here are the solutions for the second midterm, we should be handing them back in discussion sections this week. If you think that an error was made in grading your exam, you must submit the exam to Prof. Spencer (not a TA) with a written explanation of what you think the error is no later than Wednesday 5/25 in class.

Here are the solutions for the first midterm. If you think that an error was made in grading your exam, you must submit the exam to Prof. Spencer (not a TA) with a written explanation of what you think the error is no later than Wednesday 4/27 in class.

Instructor

Prof. Richard Spencer, 2041 Kemper Hall, 752-6885

Please do not use email to contact me unless it is necessary (i.e., don’t use it in place of questions in class, the discussion session and office hours). My email address is: spencer@ece.ucdavis.edu

Office hours: Fridays (except not on 5/27), 10:00 AM - 12:00 PM in 3089 Kemper Hall (Not in my office!)
In addition, Prof. Spencer will hold pre-exam office hours at times to be determined and announced before each exam.

Prof. Spencer is also available after class almost every day and by appointment.

TAs

Timothy Monk (email: tamonk@ucdavis.edu)
Office hours: R 2:00-3:00, in 2161 Kemper Hall

Vashwar Rouf (email: vtrouf@ucdavis.edu)
Office hours: R 11:00-12:00, in 2161 Kemper Hall

Amir Ziabasharhagh (email: azia@ucdavis.edu)
Office hours: T 12:00-1:00, in 2161 Kemper Hall

Hai Ta (email: hhta@ucdavis.edu)
Office hours: T 1:00-2:00, in 2161 Kemper Hall

Shraboni Jana (email: sjana@ucdavis.edu)
Office hours: W 2:45-3:45, in 2161 Kemper Hall

Mojtaba Sharifzadeh (email: msharifzadeh@ucdavis.edu)
Office hours: M 5:00-6:00, in 3087 Kemper Hall

Required Text

Artice M. Davis, Linear Circuit Analysis, Cengage (originally with PWS Publishing Company), 1998
I have put together an errata and comments for the book: davis-errata

Syllabus

Download a complete course syllabus here.

Interesting or Useful Links

To access some of the material below you will need to use the username and password specified on the course syllabus.

Here is the summary from PG&E about how power factor affects the rates paid by large users for electric power.

Here is the solution to Quiz question Q7.1-6 in the book (pg 326). If you go over it carefully it will help you see why the lowpass transfer function is called lowpass and it will give you a detailed example of solving the differential equation with a cosine forcing function both the standard way and with operators.

The powerpoint presentations listed below may not be available until the day before the lecture in which they are used!

Here are the powerpoint slides I will use for the first lecture

Here are the powerpoint slides I will use for part of one lecture on capacitors and inductors.

Here are the powerpoint slides I will use for the lecture starting frequency-domain analysis.

Here are the powerpoint slides I will use for the lecture on AC opamp circuits.

Here are the powerpoint slides I will use for the lecture on transformers.

Here are the powerpoint slides for the final lecture.

Here is the handout on nonlinear circuits for the lecture on 5/25.

Here is an IEEE Spectrum article about the memristor.

Here is a handout (an appendix from a book) that goes beyond the material in this course, but some of you may find interesting and useful. It explains how linear time-invariant circuit analysis uses complex impedance along with the Fourier Series and extensions of the Fourier Series (the Fourier and Laplace transforms). It also explains the relationship between the complex frequency domain and standard Bode plots (i.e., magnitude and phase of transfer functions versus frequency). Finally, it has asides on the complex exponential and Bode plots. This handout is an appendix from the book Introduction to Electronic Circuit Design by Richard Spencer and Mohammed Ghausi: Prentice Hall, Upper Saddle River, NJ, 2003

Here is a humorous cartoon about being an engineer! The Knack

Class Schedule

You will need the username and password given in the course syllabus to access the handouts.

Date	Day	Topic	Reading[1]	Homework
March 28	M	Introduction, define: elements, branches, leads, terminals, circuit, topology, node, subcircuit, series and parallel circuits, voltage, current, notation, and ground	§1.1 & §1.2 Here are the powerpoint slides for this lecture	HW1 - Due Friday 4/1 by 4:00 - Handout
30	W	Charge & flux linkage; Passive sign convention; Unit step function; Power and energy; Independent sources; The resistor and equivalent resistance	§1.3 through §1.5 & §2.1, HW1 covers up through here
April 1	F	Kirchoff’s laws; Series circuits & the voltage divider; Equivalent subcircuits & circuits; Parallel circuits & the current divider	§2.2, §2.3, §2.4, & §2.6
4	M	Review basic axioms of circuit theory; Source transformation; Linearity & superposition; Thévenin and Norton equivalent circuits	§3.1 through §3.3	HW2 - Due Friday, 4/8 by 4:00 - Handout. The HW2 handout now includes scans of the problems for those of you who have not been able to get the book yet.
6	W	Practical sources and matching; Source transportation (split-source transformations) & substitution; Example; Start Nodal Analysis	§3.4, §3.5, §3.6 & §4.1, HW2 covers up through here
8	F	Finish nodal analysis; Start mesh analysis	§4.2 & review Appendix A up through (A-58)
11	M	Finish mesh analysis; Analysis by inspection; examples	§4.3, §4.4 & §4.5, HW3 covers up through here	HW3 - Due Wednesday, 10/13 by 4:00 - Handout
13	W	Finish examples and review for midterm
15	F	Midterm 1 covers material through Chapter 4 (HW3) NOTE: You will need to have a picture ID with you when you take the exam!
18	M	Dependent (controlled) sources; Active subcircuits; Introduction to op amps	§5.1, §5.2 (skip the material starting with Example 5.4 on page 178), §5.3, §5.4 (only through page 191)	HW4 - Due Friday, 4/22 by 4:00 - Handout
20	W	Capacitors; Operator notation for derivatives and integrals; Impedance and admittance; Impedances in series and parallel; One-sided waveforms and causality; The pulse function	§6.1 & §6.2, HW4 covers up through here
22	F	Inductors; Inductors in series and parallel; DC steady-state; Energy storage in inductors and capacitors	§6.3, §6.4
25	M	Initial conditions; Switched circuits; The impulse function	§6.5, §6.6 (skip the Generalized Differentiation of Discontinuous Waveforms section, which begins on page 283 and ends on page 286. Start reading again with Example 6.20). Here are the powerpoint slides for this lecture.	HW5 - Due Friday, 4/29 by 4:00 - Handout
27	W	Time response of first-order circuits with first-order lowpass response	§7.1, HW5 covers up through here
29	F	First-order highpass response; General first-order response; Example circuits	§7.2, §7.3 (pay particular attention to Example 7.9!)
May 2	M	Equivalent circuit analysis for circuits with a single energy storage element; Compare methods; Complex numbers	§7.7 (§7.6 is interesting and useful, but you are not required to read it), §8.1, §8.2	HW6 - Due Friday, 5/6 by 4:00 - Handout
4	W	Euler’s formulas; Sinusoids, Complex Exponentials and Phasors; Solution of higher-order circuits and differential equations	§8.4 (pay attention to footnote 8 on page 412) & §8.6, §9.1 (you may skip the short section entitled Cascade Simulation of the General Solution Operator on page 427) HW6 covers up through here
6	F	Finish solution of higher-order circuits and differential equations; Properties of 2^nd-order circuits and systems – damping	§9.2, HW7 covers up through here
9	M	The phasor equivalent circuit; Complex impedance & admittance; KVL & KCL with phasors	§11.1, Here are the powerpoint slides for this lecture.	HW7 - Due Wednesday, 5/11 by 4:00 - Handout
11	W	Review for midterm
13	F	Midterm 2 covers material through §9.2 (HW7) NOTE: You will need to have a picture ID with you when you take the exam!
16	M	AC circuit analysis with phasors	§11.2 (skip the material on Impedance Scaling and Frequency Scaling beginning right after Example 11.12 and ending with Example 11.15)	HW8 - Due Friday, 5/20 by 4:00 - Handout NOTE: The final part of problem 11.5-1 should ask for H(j8), not H(jw).
18	W	Resonance and more AC examples.	HW8 covers up through here
20	F	Power in AC circuits (average, rms, apparent, complex); Power factor	§11.3 & §11.4 (skip the material beginning with Conservation of Complex Power on page 585 and start reading again with Example 11.24 on page 587)
23	M	More AC circuit analysis examples with power; Power factor correction; Conjugate matching		HW9 - Due Friday, 5/27 by 4:00 - Handout
25	W	AC Opamp circuits; introduction to nonlinear circuits; the diode	Here are the powerpoint slides for this lecture. The reading for this material is given in this handout on nonlinear circuits. After you have read the handout on nonlinear circuits, if you want more detail, read §5.7 in your textbook, up through Example 5.19.
27	F	Mutual inductance and transformers; rectifier circuits	§16.1 (Ignore Equation (16.1-14a), stop reading after Example 16.1, and don't let the references to two-port parameters bother you - we will not cover two-port networks in E17). Here are the powerpoint slides for this lecture.	HW10 - Due Wednesday, 6/1 by 4:00 - Handout
30	M	Memorial Day Holiday
June 1	W	Review and summarize	Here are the powerpoint slides for the final lecture.
6	M	10:30 AM - 12:30 PM Final Examination (Comprehensive) NOTE: You will need to have a picture ID with you when you take the exam!

[1] All reading assignments refer to the required text and should be completed before the lecture they are listed next to (except for the first lecture of course).

Homework Solutions:

Even though links exist for all solutions, a solution will not be available until after the time that homework is due. The username and password you need to read these files are on the course syllabus.

HW6 solutions See note about this solution at the top of the page.

To access any file with the icon, you will need to use Acrobat Reader. If you do not have a copy of the Reader, you can download it from Adobe: