DORDT UNIVERSITY ENGINEERING DEPARTMENT
ELECTRONICS I — EGR 322
(FALL 2020)

PROBLEM SETS

(Last update: 12/10/2020 10:02 am)
PS
#  
Assigned Due Returned Problems Assigned
(In Sedra & Smith unless otherwise noted1)
12

11/19 12/03 12/07
  Topic: Biasing, discrete-circuit amplifiers
  Read: 7.3, 7.4
 
  Do
  +7.59, +7.68, 7.78, D7.83, +D7.92, 7.105, 7.134.

  (This is the last problem set of the semester.)
  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Course evaluation:
  For accreditation purposes and for future
  possible improvement of the course, please fill
  the two course evaluations linked here.
  "Engineering Department's questionaire"
  Nationally normed University questionaire"
11

11/06 11/19 11/24
  Topic: Basics of amplification, small sig models
  Read: 7.1, 7.2
 
  Do 7.5, +7.6, +7.25, +*7.33, 7.42, +7.53, *7.58
 
  Note errata on Equation 7.13
  Note errata on Problem 7.5 part (c)
10

10/29 11/05 11/10
  Topic: BJT DC circuits, secondary effects
  Read: 6.3, 6.4
 
  Do +6.58, 6.61, +*6.63, +D6.64, +*6.68, **6.69
 
  Note roundoff errors in text's answer to 6.58.
  Note 6.61 continues with part (e) on page 363.
  Note errors in text's answer to 6.63.
  Note clarification of Problem D6.64.
9

10/22 10/29 11/02
  Topics: P-ch, CMOS, finite rD in saturation
  MOSFET at DC (Bias analysis), 2nd-order effects.
  BJT modes: Off, Active, Saturation
  Read 6.1, 6.2
 
  Do
  6.1, +6.2, +6.8, 6.9, +6.10, +6.12, +6.28, 6.29.

 
  Note errata on the answer to Problem 6.28A
8

10/15 10/22 10/26
  Topics: P-ch, CMOS, finite rD in saturation
  MOSFET at DC (Bias analysis), 2nd-order effects.
  Read 5.1.6 through end of chapter.
 
  Do 5.17, 5.23, 5.30, D5.43, D5.48, 5.67.
 
  Note errata on Problem 5.23
  Note errata on Problem 5.30
7

10/08 10/15 10/22
  Topics: Rectifiers, limiters, clamps, special
  diodes.
  Read 4.5 through 4.7, and 5.1.1 through 5.1.5.
 
  Do 4.4 part k only, 4.68, +4.69, +4.75,
  4.76, +*4.78, *4.88 parts a, b only, 5.1,
  +D5.5, +5.13, +5.18.

 
  Computer assistance is recommended for
  problems involving rectifiers.
 
  Note errata to problem 4.76
  Note clarification of problem 4.76
  Note errata to problem 5.5
 
  Optional reading in the Wikipedia:
  Voltage multiplier and related V doubler
  Zener diode and related Avalanche diode
  Light-emitting diode
  Solar cell and related photodiode
  Varicap (a.k.a. Varactor)
  Selenium rectifier.
6

9/25 10/08 10/12
  Topics: Various models of real diodes under
  fwd and rev bias, rev breakdown, small-signal,
  voltage regulation
  Read 4.3 through 4.5.
 
  Do 4.4 parts i, j only; 4.51, 4.52,
  D4.61, D*4.64

 
  Note errata on Problem D*4.64
5

9/17 9/24 9/28
  Topics: Ideal, models of real diodes under
  fwd and rev bias, rev breakdown, Shockley model.
  Read 4.1 through 4.2.
 
  Do 4.2, +4.3, 4.4 parts a, b, f only, +4.7,
  +4.19 +4.23

 
  Your choice of Octave, Matlab, Fooplot, Desmos,
  Mathcad, etc. are recommended for making plots.
4

9/10 9/17 9/21
  Topics: Op-amp imperfections, slew rate,
  full power bandwidth
  Read 2.5 through 2.8
 
  Do 2.87, +D2.92, +2.126, +D*2.127
 
  Note errata on Problem D2.87
  Note errata on Problem D2.92
  Note errata on the answer to Problem D2.92
3

9/03 9/10 9/14
  Topics: Op-amp configurations (inverting, sum,
  etc.), differential and instrumentation amps.
  Read Chapter 2 Sections 2.1 through 2.4
 
  Do 2.8, +D2.21, +D2.36, +*2.44, D2.52, 2.65,
  +2.75, +*2.79.
 
  Note errata on +D2.36
  Also see the clarification of +D2.36 part (b).
  Note clarification of problem *2.79
2

8/27 9/03 9/07
  Topics: Frequency content of signals, amplifier
  input resistance, output resistance, gain, dB,
  non-ideal operational amplifiers.
  Read Chapter 1
 
  Do 1.28, 1.36, 1.38, +1.45, D*1.55, 1.67,
  1.69, 1.74.

  Note clarification of problem +1.28
1

8/25

See
note 2
below
8/27 8/31
Sent
to
your
Dordt
e-mail
on
8/31
at
about
10:05
PM or
later.
See
notes
3 – 10
below
  Topics: Review of Circuit Analysis.
  Review as necessary from your EGR 220
  textbook and/or the "Introduction to Electrical
  Engineering" handout on Canvas@Dordt.9,
  and/or see Sedra & Smith Appendix D, also
  available on Canvas, Appendix D9.
 
  Do Problems +1.5, 1.6, +D*1.9, D1.13,
  1.15, 1.18, 1.21, +1.25.
(See note 1 below.)
 
  Note errata for Problems 1.6 and 1.25
 
  Click the due date (link) to turn your work in
  electronically. (Applies to all future
  assignments as well. See note 10 below.)

Note 1) Our Textbook, Microelectronic Circuits, by Sedra, Smith, et. al., includes four kinds of problem solving. Generally only the first kind described here, "Problems" are assigned.

a.) Problems are found at the end of each chapter. All the assignments refer to "Problems" at the end of the chapter unless they are prefixed with "Ex". Example: The first problem assigned in this class, 1.5, is found on page 46. Problem 1.5 starts with the phrase, "In the analysis. . ." If you are looking at something else, it is not the assigned problem. (Ex1.5 is found on page 12 and Ex1.5 is not the assigned problem).

b.) Exercises are embedded throughout the body of the chapter contents. These have answers, but not complete solutions. Students should challenge themselves to solve some of these exercises. A few of these may be assigned as homework. If so, on this page their number will be prefixed with "Ex". The first exercise, Ex1.1, starts near the bottom of page 8.
Exercise 1.1 starts with the phrase, "For the signal-source. . ."

c.) Examples are embedded throughout the body of the chapter contents. These have complete written solutions in the textbook. Some of the homework may parallel these examples. The first example, Example 1.1, is on page 7. Example 1.1 starts with the phrase, "The output resistance. . ."

d.) Video Examples are embedded throughout the body of the chapter contents. These have complete solutions presented via video accessed by Web. Some of the homework may parallel these video examples. The first video example is on page 5. Video Example VE1.1 starts with the phrase, "For the circuit shown. . ." Some of the video examples are free and some are paid "premium" content. Students should watch some of these, choosing especially the video examples on topics that are found challenging. However, the "premium content" need not be purchased. You can always ask Professor De Boer about topics you find challenging.

Note 2) Discussion in class is an important part of working the assignments. After the first few assignments, most of the homework for this class will be too complex to do in one sitting. Students must be prepared to discuss the assignments in class starting with the class following the "Assigned" date.

Note 3) A "+" mark in front of the problem number on this page means an answer is provided in an online appendix to the textbook. The "+" marks do not appear in the textbook. Solutions are in Appendix L. Also available on Canvas, Appendix L9.

Note 4) The letter "D" in front of a problem number indicates a design-oriented problem. The student may need to use some judgement in understanding what the problem statement is requesting. (Ask Prof. De Boer if you are in doubt.)

Note 5) Asterisks (*) indicate more difficult or more time-consuming problems (in the authors' judgement). The more asterisks, the more difficult.

Note 6) If the "Returned" date is a link, then the solution key is posted on Canvas@Dordt. Click on the returned date to go directly to the solution key.

Note 7) Problem sets shown above with no "Assigned" date are tentative. More problems might be added, expected due dates might change, but problems shown will eventually be assigned.

Note 8) If you are having difficulty reading the latest version of this page it may have to do with your browser's cached memory. Read this note on cached pages to solve the problem.

Note 9) If a link brings you to a login page use your Dordt University network username and password. If this brings you to the opening page of Canvas@dordt instead of the resource you wanted, click your browser's back arrow as many times as needed to return to the link on this page, then click the link again. Now that you are signed in the link will work properly.

Note 10) We will turn homework in electronically this semester. Click a due date (the due dates are links) to get instructions from canvas for turning your work in. The recommended format is a single pdf file from a scanner. Another alternative is a a word-processor file (docx for example) with photos from a smartphone of your homework pasted into the document. If you use this alternative, please consider using a "mobile scanner app" in your smartphone to get a nice contrasty picture of each homework page.