introduction to power electronics _ coursera

8/10/2019 Introduction to Power Electronics _ Coursera

1/5

Upcoming Deadlines

Homeworks

Homework ass ignment #7: Ch. 8Sun 26 Oct 2014 10:59 PM PDT

New Lectures

9.1-2 Introduction 21:26

9.3 Construction of closed-loop

transfer functions 10:53

9.4.1 Stability 21:16

9.4.2 Phase margin vs. closed-loop

Q 20:18

9.5 Regulator design 19:25

9.5.4 Design example 18:15

Op-amp compensator design 29:07

9.5.5 Another example 19:01

Recent Discussions

Q #3 Solving for the constantgain is the tricky part

Q7 - Structure of H(s)

Questions such as HW7 Q7-Q14 not particularly helpful tostudents having difficulties

HW7 Q8 - 11

Q1-Q9: Asymptotes

Announcements

Final weekThe 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

ac current of a grid-tied solar inverter.

The upcoming assignment due dates are Nov. 6 for

assignment 8 and Nov. 13 for assignment 9.

Certificates will be awarded promptly after the final

hard deadline.

Sat 25 Oct 2014 5:00 AM PDT

Week 8

In this week's lectures, we will complete Chapter 8

(frequency response and design-oriented analysis)

and begin Chapter 9 (controller design). You should

finish HW#7 this week, and begin HW#8 and the

optional extra credit assignment.

An additional week will be allowed for completion of

the final two assignments and their associated extra

credit problems. The posting of the solutions will be

adjusted accordingly.


Grading policy

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
https://class.coursera.org/powerelectronics-002/forum/thread?thread_id=484https://class.coursera.org/powerelectronics-002/forum/thread?thread_id=484https://class.coursera.org/powerelectronics-002/forum/thread?thread_id=413https://class.coursera.org/powerelectronics-002/lecture/131https://class.coursera.org/powerelectronics-002/lecture/129https://class.coursera.org/powerelectronics-002/lecture/137https://class.coursera.org/powerelectronics-002/lecture/123https://class.coursera.org/powerelectronics-002/lecture/119https://class.coursera.org/powerelectronics-002/lecture/117https://class.coursera.org/powerelectronics-002/quiz/start?quiz_id=169https://class.coursera.org/powerelectronics-002/forum/thread?thread_id=486https://class.coursera.org/powerelectronics-002/forum/thread?thread_id=474https://class.coursera.org/powerelectronics-002/forum/thread?thread_id=484https://class.coursera.org/powerelectronics-002/forum/thread?thread_id=487https://class.coursera.org/powerelectronics-002/forum/thread?thread_id=413https://class.coursera.org/powerelectronics-002/lecture/131https://class.coursera.org/powerelectronics-002/lecture/129https://class.coursera.org/powerelectronics-002/lecture/127https://class.coursera.org/powerelectronics-002/lecture/125https://class.coursera.org/powerelectronics-002/lecture/137https://class.coursera.org/powerelectronics-002/lecture/123https://class.coursera.org/powerelectronics-002/lecture/119https://class.coursera.org/powerelectronics-002/lecture/117https://class.coursera.org/powerelectronics-002/quiz/start?quiz_id=169https://class.coursera.org/powerelectronics-002/api/course/calendar


2/5

Browse all discussions

not be visible until seven days after the posted soft

deadlines.

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 methods 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


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 explorethese 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
https://class.coursera.org/powerelectronics-002/forum/index


3/5

You should complete the Ch 6 homework assignment

this week, and begin work on the Ch 7 assignments.


Assignment for Week 5

Chapter 6 covers some of the most well-known

converter circuits and their origins. Transformer-

isolated 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


4. (optional) Participate in the open-ended discussion

forum topic for Chapter 6 (Lectures Ch 6 forum)

Sat 27 Sep 2014 5:00 AM PDT



2. View the posted lectures on Chapters 4 and 5



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.
http://help.coursera.org/customer/portal/articles/1164381


4/5

Thu 18 Sep 2014 12:36 PM PDT


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:


2. View the posted lectures on sections 4.1 and 4.2.1


4. (optional) Begin the Extra Credit assignment on

Chapter 4.




2. View the lectures on Chapter 3



Assignment for the first

weekWelcome 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


5/5

Week 1 of the course begins September 1. The

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 EricksonProfessor

Department of Electrical, Computer, and Energy

Engineering

University of Colorado-Boulder

Sun 11 May 2014 9:00 AM PDT

introduction to power electronics _ coursera

Documents