ECEG 350
Electronics I

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HW #6 Solutions (10/27/2026)

The solutions to the graded and ungraded problems in HW #6 are now available at the course Moodle site.

Exam #2 Room Change (10/26/2026)

To provide more room and hopefully lower the tension and temperature somewhat, Exam #2 will take place in Dana 113 (Gardner Lecture Hall) on Thursday.

Review Session for Exam #2 - UPDATE (10/26/2026)

To help you prepare for Exam #2, an optional review session will be offered at 8:00 pm on Wednesday, October 28, in Breakiron 165, our usual classroom. The exam room is not available that evening.

The format of the review session will be the same as the previous one. I strongly suggest that you come prepared with questions.

If you cannot attend the review session but would like to meet with me at another time before the exam, please contact me.

Table Formatting Examples (10/26/2026)

A Microsoft Word document containing examples of good and poor data table formats is now available at the course Moodle site in the "Additional Resources" section. The examples were discussed in class on Monday, October 26.

Revised Selected Answers to HW #6 (10/26/2026)

The answers to Graded Probs. 2 (all three parts), 3, and 4 (both parts) in HW #6 have been revised to correct minor errors. The updated set of answers has been posted to the Homework Assignments page.

Load/Line Regulation Specifications for LM317 (10/26/2026)

The LM317 datasheet expresses the load and line regulation specifications using units based on percentages. The specifications expressed in the mV/mA and mV/V units are listed below. They apply if the output voltage is 9 V. You should compare the values below to the values that you measure in lab.

Load Regulation:

• Typical = 0.006 mV/mA (device temp. = 25 °C)
• Maximum = 0.030 mV/mA (device temp. = 25 °C)
• Typical = 0.018 mV/mA (full temp. range)
• Maximum = 0.090 mV/mA (full temp. range)

Line Regulation:

• Typical = 0.9 mV/V (device temp. = 25 °C)
• Maximum = 3.6 mV/V (device temp. = 25 °C)
• Typical = 1.8 mV/V (full temp. range)
• Maximum = 6.3 mV/V (full temp. range)

Formatting Guidelines for Figures, Tables, and Captions (10/26/2026)

A set of guidelines to follow while you prepare your Lab #3 visual aids is now available on the Laboratory page under the "Post-Lab Meeting Preparation and Rubrics" heading. It is a general document that should prove useful as you prepare documentation for other courses as well as visual aids for future ECEG 350 lab exercises.

Updated versions of the guidelines might be posted later in the semester as new issues arise. Additional guidelines will be posted if new documentation elements are required in future lab exercises.

Review Sheet for Exam #2 (10/26/2026)

The review sheet for Exam #2 is now available on the Exams page. It lists the topics from which the exam problems are most likely to be drawn. Note, however, that the list is not guaranteed to be exhaustive; some problems could focus on concepts that were covered in class but are not included on the review sheet.

Please carefully review the exam policies listed at the beginning of the document.

Selected Answers to HW #6 (10/25/2026)

Answers to selected graded problems in HW #6 are now available on the Homework Assignments page.

HW #6 Revised (10/25/2026)

Graded Prob. 4 of the HW #6 assignment has been clarified. The load regulation specifications in the LM7805 datasheet are given in the mV unit, but you must determine how to express them in the mV/mA unit. A revised version of the HW #6 assignment has been posted.

Help Sessions for Oct. 25–30 (10/25/2026)

I will be available at least at the following times this week:

• Sunday 9:30–10:15 pm (Zoom)
• Monday 6:00–7:00 pm (BRKI 368)
• Monday 9:30–10:15 pm (Zoom)
• Tuesday 4:00–5:00 pm (BRKI 368)
• Tuesday 9:30–10:15 pm (Zoom)
• Wednesday 2:00–2:45 pm (BRKI 368)
• Thursday 10:00–10:45 pm (Zoom)
• Friday 2:00–2:45 pm (BRKI 368)

Additional times might be posted later this week.

I am usually also available at the end of my MWF lectures at 9:50 am in Dana 307 and at 4:50 pm in BRKI 165.

Guidelines and additional information:

• Please contact me if you have a conflict with these times and would like to arrange a meeting at a different time.
• The Zoom link is available at the course Moodle site.
• If I am helping another student when you drop by, you may usually join in the conversation.
• If I have been helping you for a relatively long time, I might pause our conversation to help other students who are waiting for assistance.
• For in-person sessions, if I have finished helping you, please move out to the hall or somewhere else so that the chairs in my office are clear for newly arriving students.
• As a courtesy during Zoom sessions, please use your camera.

HW #5 Solutions (10/24/2026)

The solutions to the graded and ungraded problems in HW #5 are now available at the course Moodle site.

Reading Assignments for Oct. 26–30 (10/24/2026)

• M: Sections 5.0 and 5.1.0 through 5.1.6
• W: Sections 5.2.0 through 5.2.3
• F: Sections 5.3, 7.0, and 7.1.0 through 7.1.3

All of the section and subsection numbers that end in 0 are the introductions to their respective sections or chapters. You should read those sections since they provide important context and/or background information for the material that follows.

Screen Capture M-File (10/23/2026)

A Matlab script (m-file) that saves oscilloscope screen images as *.PNG files and also downloads the trace data (i.e., waveform values vs. time) is now available at the course Moodle site in the "Additional Resources" section. The instructions for using the script are also available there.

This script is brand new, so if you notice or uncover any bugs, please let me know. We would also welcome any suggestions for improvement.

HW #6 (10/21/2026)

The assignment for HW #6 is now available. It is due via Moodle at 11:59 pm on Monday, October 26.

The solutions will be posted the next morning to help you prepare for Exam #2, which will take place on Thursday, October 29. Remember that homework is not accepted for credit after the solutions have been posted.

HW #4 Solutions (10/19/2026)

The solutions to the graded and ungraded problems in HW #4 are now available at the course Moodle site.

Selected Answers to HW #5 (10/19/2026)

The answers to selected graded problems in HW #5 are now available on the Homework Assignments page.

Help Sessions for Oct. 19–23 (10/18/2026)

I plan to be available at least at the following times this week:

• Monday 2:00–3:00 pm (BRKI 368)
• Monday 9:30–10:15 pm (Zoom)
• Tuesday 4:00–5:00 pm (BRKI 368)
• Tuesday 9:30–10:15 pm (Zoom)
• Thursday 5:30–6:30 pm (BRKI 368)
• Thursday 10:00–10:45 pm (Zoom)
• Friday 4:00–5:00 pm (BRKI 368)

I am usually also available right after class.

Guidelines and additional information:

• Please contact me if you have a conflict with these times and would like to arrange a meeting at a different time.
• The Zoom link is available at the course Moodle site.
• If I am helping another student when you drop by, you may usually join in the conversation.
• If I have been helping you for a relatively long time, I might pause our conversation to help other students who are waiting for assistance.
• For in-person sessions, if I have finished helping you, please move out to the hall or somewhere else so that the chairs in my office are clear for newly arriving students.
• As a courtesy during Zoom sessions, please use your camera.

Reading Assignments for Oct. 19–23 (10/18/2026)

• M: Example 4.7 in Section 4.5 and the supplemental reading "Three-Terminal Linear Voltage Regulators"
• W: Section 4.7.5 and finish reading "Three-Terminal Linear Voltage Regulators"
• F: Sections 5.0 and 5.1.0 through 5.1.6

Read Example 4.7 in Section 4.5 for definitions of load and line regulation. These are important voltage regulator performance parameters. These topics are also covered in the supplemental reading in more detail.

Section 5.0 is the introduction to Chapter 5. Subsection 5.1.0 is the introduction to Section 5.1.

Revised Selected Answers to HW #4 (10/15/2026)

The answers to Graded Probs. 2 and 5a in HW #4 have been revised to provide more clarification. The updated set of answers has been posted to the Homework Assignments page.

Selected Answers to HW #4 (10/15/2026)

The answers to selected graded problems in HW #4 are now available on the Homework Assignments page.

HW #5 (10/14/2026)

The assignment for HW #5 is now available. It is due via Moodle at 11:59 pm on Tuesday, October 20.

Help Sessions for Oct. 12–16 (10/14/2026)

Not many sessions this week because of fall break. However, I will be available at least at the following times:

• Wednesday 2:00–3:00 pm (BRKI 368)
• Wednesday 10:00–10:45 pm (Zoom)
• Thursday 5:00–6:00 pm (BRKI 368)
• Thursday 9:30–10:15 pm (Zoom)
• Friday 4:00–4:30 pm (BRKI 368)

Guidelines and additional information:

• Please contact me if you have a conflict with these times and would like to arrange a meeting at a different time.
• The Zoom link is available at the course Moodle site.
• If I am helping another student when you drop by, you may usually join in the conversation.
• If I have been helping you for a relatively long time, I might pause our conversation to help other students who are waiting for assistance.
• For in-person sessions, if I have finished helping you, please move out to the hall or somewhere else so that the chairs in my office are clear for newly arriving students.
• As a courtesy during Zoom sessions, please use your camera.

Reading Assignments for Oct. 12–16 (10/14/2026)

• M: [Fall Break]
• W: Continue reading the supplemental reading "Three-Terminal Linear Voltage Regulators," and skim the supplemental reading "Voltage Regulation and Power Conversion."
• F: Continue reading the supplemental reading "Three-Terminal Linear Voltage Regulators," and skim the supplemental reading "Voltage Regulation and Power Conversion."

The supplemental readings are available at the course Moodle site.

The second reading comes from the book The Art of Electronics, by Horowitz and Hill. Focus on the chapter introduction and Sections 9.3.0–9.3.4. It is a good overview of the topic, but it also covers a lot of detail that you will not be expected to learn in ECEG 350. You may therefore skim this reading.