ECEG 351
Electronics II

• Main Course Page
• Alternative Textbooks
• Course Description
• Exams
• Homework Assignments
• Instructor Information
• Laboratory
• Moodle Site
• Syllabus and Policies
• Web Links

Timing of Review Session for Final Exam (4/26/2024)

The ECEG 351 final exam will take place 7:30–10:30 pm on Thursday, May 2 in Academic East 225, our usual classroom. Please think about whether and when a review session should take place. I am willing to provide an in-person session or a Zoom version as with Exam #3.

I should be free all afternoon and evening on Tuesday, April 30 and Wednesday, May 1. We could also schedule the session during the day of the exam. I will schedule multiple in-person and Zoom office hours leading up to the exam.

We will set a date and time for the review session in class on Monday, April 29.

Course Evaluations (4/26/2024)

The course evaluation portal for ECEG 351 is now open and will remain open until 11:59 pm on Monday, April 29.

Lab #3 Scores (4/24/2024)

The scores for Lab #3 are now available at the course Moodle site. Please let me know if you are not able to view your score.

A report detailing how your lab score was determined will be e-mailed to you upon request.

Exam #3 Solutions (4/24/2024)

The solutions to Exam #3 are now available at the course Moodle site.

Exam #3 Results (4/24/2024)

The average score for Exam #3 was 83.0. The average score breakdowns for the individual problems (converted to percentages) were:

• Prob. 1 - 82%
• Prob. 2 - 88%
• Prob. 3 - 84%
• Prob. 4 - 66%
• Prob. 5 - 94%

HW #10 (4/23/2024)

The assignment for HW #10 is now available. It is due via the course Moodle site at 11:59 pm on Monday, April 29.

Help Sessions for Apr. 22–26 (4/22/2024)

I plan to be available at least at the following times this week. Updates, if any, will be posted as soon as possible.

• Wednesday, 4:00–5:00 pm (BRKI 368)
• Wednesday, 9:00–10:00 pm (Zoom)
• Thursday, 4:00–5:00 pm (BRKI 368)
• Thursday, 9:00–10:00 pm (Zoom)
• Friday, 2:00–2:45 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.
• I am usually available for short consultations on Wednesdays and Fridays at 1:50 pm immediately after the ECEG 390 lectures in Dana 115.
• 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 new students who need help.

Simulation of Transition from CCM to DCM (4/22/2024)

The Matlab Live Script entitled "Boost Converter in Transition from CCM to DCM" is now available in the Additional Resources section of the course Moodle site. This is the simulation that was presented in class on Monday, April 22 that shows how the inductor current changes as a boost converter makes the transition from continuous current mode (CCM) to discontinuous current mode (DCM).

Reading Assignments for April 22–26 (4/22/2024)

• M: Chapters 3 and 5 from Erickson & Maksimovic, 2nd ed.
• W: Chapter 3 from Erickson & Maksimovic, 2nd ed.
• F: Sections 12.10.1 and 12.10.4 from Sedra & Smith, 7th ed.

The material in Sedra & Smith, 7th ed. is not available in the 8th edition. It has been posted at the course Moodle site. In addition to reading Sections 12.10.1 and 12.10.4, you should skim Sections 12.10.2 and 12.10.3 to provide context and to learn how power transistors differ from those intended for low-power operation.

Lab #5 Resource (4/19/2024)

A short document entitled "Interpretation of Output Voltage Waveform Obtained in ECEG 351 Lab #5" is now available in the Additional Resources section of the course Moodle site. It provides some guidance on improving the output voltage waveform of the boost converter circuit and determing whether it meets specifications.

Selected Answers to HW #9 (4/18/2024)

The answers to selected graded problems in HW #9 are now available on the Homework Assignments page.

HW #9 Revised (4/18/2024)

Graded Prob. 3 of HW #9 focuses on material that we have not covered yet in class. It has therefore been deferred to HW #10. A revised version of the HW #9 assignment has been posted at the Homework Assignments page.

Lab #5 Assignment (4/18/2024)

The assignment for Lab #5 is now available on the Laboratory page.

Help Sessions for Apr. 15–19 (4/15/2024)

I plan to be available at least at the following times this week. Updates, if any, will be posted as soon as possible.

• Wednesday, 4:30–5:30 pm (BRKI 368)
• Wednesday, 9:00–10:00 pm (Zoom)
• Thursday, 5:00–6:00 pm (BRKI 368)
• Thursday, 10:00–11:00 pm (Zoom)
• Friday, 4:00–5:00 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.
• I am usually available for short consultations on Wednesdays and Fridays at 1:50 pm immediately after the ECEG 390 lectures in Dana 115.
• 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 new students who need help.

HW #9 (4/14/2024)

The assignment for HW #9 is now available. It is due via the course Moodle site at 11:59 pm on Friday, April 19.

Reading Assignments for Apr. 15–19 (4/13/2024)

• M: Supplemental reading: Chapters 2 and 3 from Erickson & Maksimovic, 2nd ed.
• W: Supplemental reading: Chapter 3 from Erickson & Maksimovic, 2nd ed.
• F: Supplemental reading: Chapter 5 from Erickson & Maksimovic, 2nd ed.

You may skip Section 2.4 of the excerpt from Chapter 2 of Erickson & Maksimovic, 2nd ed. In Chapter 3, focus on Sections 3.2 and 3.3.4.

The supplemental readings are available at the course Moodle site.

The book from which the supplemental readings have been taken is available in electronic form through the library. The full bibliographical information is: R. W. Erickson and D. Maksimovic, Fundamentals of Power Electronics, 2nd ed., Springer, 2001.