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Final week
Homework Homew ork ass ignm ignment ent #7: Ch. 8 Sun 26 Oct 2014 10:59 PM PDT
The week 9 lectures cover the remainder of Chapter 9, controller design. The chapter 9 homework assignment concerns the feedback control system of a forward dc-dc converter. An optional extra credit problem involves a feedback system that controls the
New Lectures 9.1-2 Introdu Int roduc ction 21:26
ac current of a grid-tied solar inverter. inverter. 9.3 Construction of closed-loop
The upcoming assignment due dates are Nov. 6 for
transfer functions 10:53
assignment assignm ent 8 and Nov. 13 for assignment 9.
9.4.1 Stability Stability 21:16
Certificates will be awarded promptly after the final 9.4.2 Phase margin vs. closed-loop
hard deadline.
Q 20:18
Sat 25 Oct 2014 5:00 AM PDT 9.5 Regulator Regulator design 19:25 9.5.4 Design example 18:15
Week 8
Op-amp compensator compensator design 29:07
In this week's lectures, we will complete Chapter 8
9.5.5 9.5. 5 Another example 19:01
(frequency response a nd design-oriented a nalys nalysis) is) and begin Chapter 9 (controller design). You should finish HW#7 this week, and begin HW#8 and the optional extra credit assignment.
Recent Discussions Q #3 Solving for the constant gain is the the tricky part
An additional week will be allowed for completion of o f the final two assignments and their associated extra
Q7 - Structure of H(s)
credit problems. The posting of the solutions will be adjusted accordingly. Sat 18 Oct 2014 5:00 AM PDT
Grading policy
Questions such as HW7 Q7Q14 not particularly helpful to students having difficulties
HW7 Q8 - 11
Because of recent difficulties with the Coursera servers, the allocation of late days has now been extended from five to seven. Please note that this will extend the hard deadlines as well, so solutions will
Q1-Q9: Asymptotes
not be visible until seven days after the posted soft deadlines.
Browse all discussions » Tue 14 Oct 2014 7:40 AM PDT
Week 7 This week, we will begin Chapter 8, in which we employ the converter ac models developed in Chapter 7 to construct small-signal transfer functions. Along the way, we will employ some me thods of design-oriented analysis. The specific assignments are: 1. Complete Homework Assignment #6, covering Chapter 7, and the optional Ch 7 extra credit assignment. 2. View the posted lectures on Chapter 8 3. Begin Homework Assignment #7 Sat 11 Oct 2014 5:00 AM PDT
Week 6 We are now over half way through the Coursera course Introduction to Power Electronics. Congratulations to all of you who are working the problem sets or watching the videos; the comprehension exhibited in the assignment and quiz results appears to be quite good. This week, we begin the second major topic of the course: control of switching converters. We will extend our equivalent circuit modeling of converters to describe their dynamics and small-signal ac transfer functions. In upcoming weeks, we will explore these dynamics and use the models to design control systems. This week, the following new materials have been posted: New lectures on Chapter 7, relating to ac modeling and frequency response of power converters New homework and extra credit assignments on Ch 7
You should complete the Ch 6 homework assignment this week, and begin work on the Ch 7 assignments. Sat 4 Oct 2014 5:00 AM PDT
Assignment for Week 5 Chapter 6 covers some of the most well-known converter circuits and their origins. Transformerisolated converters are introduced, including a few of the most commercially-important circuits and how to extend our analysis techniques to converters that incorporate transformers. 1. Complete Homework Assignment #4 2. View the posted lectures on Chapter 6 3. Begin Homework Assignment #5 4. (optional) Participate in the open-ended discussion forum topic for Chapter 6 (Le ctures Ch 6 forum) Sat 27 Sep 2014 5:00 AM PDT
Assignment for Week 4 1. Complete Homework Assignment #3 2. View the posted lectures on Chapters 4 and 5 3. Begin Homework Assignment #4 Sat 20 Sep 2014 5:00 AM PDT
Honor code Dear students, Please be aware that the Coursera honor code prohibits posting of homework answers in the forums. You can read the honor code at this link: Coursera honor code There have been an unusually large number of forum postings that include homework answers. Please adhere to the honor code, and find other ways to ask your questions.
Thu 18 Sep 2014 12:36 PM PDT
Assignment for Week 3 Homework assignment #1 is due tomorrow. Please note that the due time listed on the Coursera homework #1 page is the first minute when the homework is considered late; to be on-time, you must submit your homework at least one minute before this time. Week 3 begins tomorrow; the assignments for this week are: 1. Complete Homework Assignment #2 2. View the posted lectures on sections 4.1 and 4.2.1 3. Begin Homework Assignment #3 4. (optional) Begin the Extra Credit assignment on Chapter 4. Sat 13 Sep 2014 5:00 AM PDT
Assignment for Week 2 1. Complete Homework Assignment #1 2. View the lectures on Chapter 3 3. Begin Homework Assignment #2
Sat 6 Sep 2014 5:00 AM PDT
Assignment for the first week Welcome to Introduction to Power Electronics! The course website is now active. The course teaching staff is: Instructor: Prof. Robert Erickson Teaching Assistant: Prasanta Achanta Community TAs: Darren Snook, Doruk Kutlu, Chris Wyles, Paul Meyer, and Martti Paalanen
Week 1 of the course begins September 1. T he assignments for this week are: 1. Watch the lectures covering Chapters 1 and 2. 2. Start on Homework Assignment #1 (HW#1). This assignment covers the material of Chapter 2, and is due at the end of Week 2. 3. The *starred lecture on Sections 2.4 and 2.5 covers some finer points that go beyond the knowledge needed to complete HW#1. This lecture is optional. Fri 29 Aug 2014 8:36 AM PDT
Hello, and welcome to Introduction to Power Electronics! This course will cover the first nine weeks of power electronics as taught to Seniors in Electrical Engineering at the University of Colorado-Boulder. Coursera students will experience the full course material, and may choose to work substantial homework sets to earn a certificate of completion. This course will officially begin on Monday, September 1. Each week will include a set of lectures, with a homework set due one week later. The first homework assignment will be due on Sept. 14. The course staff and I look forward to your participation. Robert Erickson Professor Department of Electrical, Computer, and Energy Engineering University of Colorado-Boulder Sun 11 May 2014 9:00 AM PDT
