ECEG 350
Electronics I

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Selected Answers to HW #4 (10/15/2025)

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

Exam #1 Solutions (10/15/2025)

The solutions to Exam #1 are now available at the course Moodle site.

Exam #1 Results (10/15/2025)

The average score for Exam #1 was 70.5. The average score breakdowns for the individual problems (converted to percentages) were:

• Prob. 1 - 75%
• Prob. 2 - 76%
• Prob. 3 - 62%
• Prob. 4 - 85%
• Prob. 5 - 54%

Average scores will be available on the Exams page throughout the semester.

Revised Notes on Three-Terminal Regulators (10/14/2025)

A revised version of the supplemental reading "Three-Terminal Linear Voltage Regulators" is now available at the course Moodle site. No substantial changes were made to the content. The revision addressed a few minor typographical errors and made some of the text clearer and more concise.

Class Canceled on Friday, Oct. 17 (10/13/2025)

Because Exam #2 has been scheduled for 8:00–9:50 am on Thursday, Oct. 23, the class meeting on Friday, Oct. 17 will be canceled.

Help Sessions for Oct. 13–17 (10/13/2025)

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

• Wednesday 5:00–6:00 pm (BRKI 368)
• Wednesday 9:00–10:00 pm (Zoom)

I will check my e-mail Oct. 16–19 at least in the evenings, and I will schedule multiple sessions for Monday, Oct. 20.

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. 13–17 (10/13/2025)

• 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: [Class Canceled]

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.

HW #4 (10/8/2025)

The assignment for HW #4 is now available. It is due via Moodle at 11:59 pm on Monday, October 20.

Help Sessions for Oct. 6–10 (10/6/2025)

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

• Wednesday 5:00–6:00 pm (BRKI 368)
• Thursday 10:00–11:00 pm (Zoom)
• Friday 3:00–4:00 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.

First Page of Exam #1 (10/5/2025)

A copy of the first page of Exam #1 has been posted to the course Moodle site in the "Additional Resources" section. It is being provided to you now to make you aware of the policies that will be in effect and the equations that will be provided to you.

Please carefully read the exam policies on the first page.

Reading Assignments for Oct. 6–10 (10/4/2025)

• M: [Exam #1]
• W: Sections 4.6.0–4.6.4
• F: Read the supplemental readings "Average and Peak Diode Currents in Rectifier Circuits" and "Three-Terminal Linear Voltage Regulators," and skim Section 4.5.

Subsection 4.6.0 is the introduction to Section 4.6.

The supplemental readings are available at the course Moodle site. The first one presents a more thorough derivation of the average and peak diode current formulas than the one given in Section 4.6.4 of the textbook, and it addresses what appears to be an error in some of the formulas.

The second supplemental reading covers voltage regulator integrated circuits. That topic is not covered at all in the textbook, but we will be working with these devices in Lab #3.

Review Session for Exam #1 (10/4/2025)

To help you prepare for Exam #1, an optional review session will be offered at 8:00 pm on Sunday, October 5 in Breakiron 165 (our usual classroom). The room reservation has been confirmed.

I do not prepare material for review sessions. Instead, I answer students' questions and/or work through example problems by request. The format of the session is therefore up to you. I strongly suggest that you come prepared with questions to ask.

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

List of Exam Preparation Resources (10/3/2025)

In addition to the textbook, supplemental readings, and help sessions, the following resources are now or soon will be available to help you prepare for Exam #1:

• Review sheet
• Exams from past offerings of ECEG 350
• Homework solutions (HW #3 solutions at 5:00 pm today)
• Upcoming review session
• "Advice Regarding Exam Preparation and Anxiety Management" section of Exams page
• Self-prepared help sheet for use during exam
• Copy of first page of exam showing equations to be provided

HW #3 Solutions (10/3/2025)

The solutions to the graded and ungraded problems in HW #3 will be available at the course Moodle site after 5:00 pm today.