Introduction to Power Electronics

ECEN 4797/5797 Fall 2011

Announcements

  • (12/09) Final exam typo: the 3rd sentence in Problem 1, part (c) should read: "You can assume the converter solution stays the same as in parts (a) and (b)."
  • (12/01) For on-campus ECEN4797 and ECEN5797 students, the final exam will be handed out in class on Friday, Dec. 9. It is due in the instructor's office by 2pm on Thursday, Dec. 15. Off-campus students can start working on the exam any time between Dec. 9 and Dec. 21, and must then turn it in within 6 days from the start but no later than 5 pm MT on Wednesday, Dec. 21.
  • (12/01) Homework 13 is due in class (for on-campus students) on Friday, December 9. Off-campus students are strongly encouraged to follow the on-campus due date, but have a period, which for this assignment ends on Thursday, December 15, 5pm Mountain time.
  • (11/30) In Problem 13.6 of HW12, you can ignore skin and proximity effects. The copper losses can be calculated simply as R1*I1^2 + R2*I2^2, where R1 and R2 are the dc resistances of the primary and secondary, respectively, and I1 and I2 are the rms currents of the primary and secondary, respectively.
  • (11/19) Homework 12 is due in class (for on-campus students) on Friday, December 2. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, December 9, 5pm Mountain time.
  • (11/15) In HW11, Problem 13.4(c) should say: "...give analytical expressions for the effective turns ratio..."
  • (11/12) Homework 11 is due in class (for on-campus students) on Friday, November 18. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which in this case ends Monday, November 28, 5pm Mountain time.
  • (11/07) The lecture on Wed. Nov.8 is pre-recorded lecture from Fall 2010 on basic magnetics, textbook Section 13.1.
  • (11/07) No office hours on Wednesday Nov.8.
  • (11/04) Homework 10 is due in class (for on-campus students) on Friday, November 11. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, November 18, 5pm Mountain time.
  • (11/02) Slides for taking notes have been posted for an additional compensator design example
  • (10/28) Homework 9 is due in class (for on-campus students) on Friday, November 4. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, November 11, 5pm Mountain time.
  • (10/21) Homework 8 is due in class (for on-campus students) on Friday, October 28. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, November 4, 5pm Mountain time.
  • (10/15) Correction of a typo in the midterm exam Problem 2: "(except in part (c))" should read: "(except in part (b))"
  • (10/14) Midterm exam instructions.
  • (10/09) Midterm exam page includes a sample exam with solutions, and due dates.
  • (10/06) Homework 7 is due in class (for on-campus students) on Friday, October 14. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, October 21, 5pm Mountain time.
  • (10/05) Lecture #20 on Friday, Oct. 7 will be given by Dr. Carlos Olalla. There are no changes in the contents or the schedule.
  • (09/29) Homework 6 is due in class (for on-campus students) on Friday, October 7. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, October 14, 5pm Mountain time.
  • (09/29) A small correction in Problem 3 of HW5: expression for fs should be found as a function of L, Ipk, Io, V, and M. (L was missing in the original problem statement, a corrected version has been uploaded)
  • (09/24) Problem 3 has been added to HW5.
  • (09/23) Homework 5 is due in class (for on-campus students) on Friday, September 30. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, October 7, 5pm Mountain time.
  • (09/21) There was an error in the circuit diagram of Problem 2 in HW4. A corrected version of the problem has been posted.
  • (09/16) Homework 4 is due in class (for on-campus students) on Friday, September 23. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, September 30, 5pm Mountain time.
  • (09/14) Instructor will be away on a trip, 9/19-9/22. Make-up lectures will be done on Friday 9/16 and Friday 9/23, as detailed on the schedule page. Make-up office hours will be on Friday 9/23 9-11am.
  • (09/09) Homework 3 is due in class (for on-campus students) on Friday, September 16. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, September 23, 5pm Mountain time.
  • (09/07) On Thursday, Sept.8, office hours are moved to 1:30-3pm.
  • (09/06) CAETE is working on reducing the delay between the time the lectures are recorded and the time they are posted on-line. For any issues related to access to or technical quality of on-line lectures please contact the CAETE technical support directly.
  • (09/02) Homework 2 is due in class (for on-campus students) on Friday, September 9. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, September 16, 5pm Mountain time.
  • (08/24) Homework 1 is due in class (for on-campus students) on Friday, September 2. Off-campus students are strongly encouraged to follow the on-campus due date, but have a one-week grace period, which ends Friday, September 9, 5pm Mountain time.
  • (08/24) Instructor will be away on a trip, 8/27-9/1. Make-up lectures will be done on Friday 8/26 and Friday 9/2, as detailed on the schedule page.
  • (08/22) Note to off-campus students: please check your colorado.edu email, or have your colorado.edu email forwarded to your preferred personal email address.
  • (08/22) Handout slides, suitable for taking notes, have been posted for Lecture 1. Throughout the semester, handout and annotated lecture slides will be posted on the Lecture schedule page.
  • (08/16) Required textbook: Erickson/Maksimovic, Fundamentals of Power Electronics, 2nd edition, Springer 2001, ISBN: 0-7923-7270-0. For CU students with CU network access, the book is available on-line at the publisher site. You must be on CU network to access the book chapters (at no cost).
  • (08/09) Please take some time to look through the course syllabus, vitals and info, and the schedule. If you have any questions, contact the instructor, Prof. Dragan Maksimovic, maksimov @ colorado.edu.
  • (08/09) Welcome to Fall 2011 Introduction to Power Electronics. The class meets 2-2:50pm MWF in CAETE studio ECCS 1B12 starting Monday, Aug.22.

The course is an introduction to switched-mode power converters. It provides a basic knowledge of circuitry for the control and conversion of electrical power with high efficiency. These converters can change and regulate the voltage, current, or power; dc-dc converters, ac-dc rectifiers, dc-ac inverters, and ac-ac cycloconverters are in common use. Applications include electronic power supplies, aerospace and vehicular power systems, and renewable energy systems.

This course is offered every fall semester. It is one of the three courses required for the Professional Certificate in Power Electronics. In addition, this course provides the theoretical basis for the Power Electronics and Photovoltaic Power Systems Laboratory course, ECEN 4517/5517.

The required prerequisite for the course is ECEN 3250 Circuits and Electronics 3 or equivalent. It will be assumed that all students have completed a 1.5-2 year sequence of undergraduate circuits and electronics courses for EE majors.

The course is offered both to regular on-campus students and also to off-campus students via CAETE. Students registered through CAETE can receive lectures via web-based streaming video or DVD. Further details of the course policies, including procedures for off-campus students, are listed on the Vitals page.