3rd course in the Power Electronics Specialization

Instructor: Robert Erickson, Ph.D., Professor

This course teaches how to design a feedback system to control a switching converter. The equivalent circuit models derived in the previous courses are extended to model small-signal ac variations. These models are then solved, to find the important transfer functions of the converter and its regulator system. Finally, the feedback loop is modeled, analyzed, and designed to meet requirements such as output regulation, bandwidth and transient response, and rejection of disturbances.

Upon completion of this course, you will be able to design and analyze the feedback systems of switching regulators.

Prior knowledge needed: ECEA 5700 Introduction to Power Electronics, ECEA 5701 Converter circuits, and Basic electronics circuits and analysis and Microelectronics.

Syllabus

Duration: 5 hours

How to extend the converter steady-state equivalent circuits, derived in the previous courses, to obtain small-signal ac equivalent circuits that model the important converter and regulator system dynamics.

Duration: 5 hours

A review of the construction of Bode plots of the magnitude and phase of first-order, second-order, and higher-order transfer functions, with emphasis on techniques needed for design of regulator systems. Design-oriented analysis techniques to make approximations and gain insight into how to design ac systems having significant complexity.

Duration: 4 hours

Design-oriented analysis techniques to make approximations and gain insight into how to design ac systems having significant complexity. Graphical construction techniques.

Duration: 5 hours

Application of the material of Chapters 7 and 8 to design closed-loop regulators that employ switching converters. How to design a feedback system that accurately regulates its output while rejecting disturbances.

Duration: 2 hours

The final examination covers the material of all homework assignments. It counts for 45% of the course letter grade. Practice exam: a sample exam is included in Module 4, which is intended to approximate the conditions of the final exam. This item counts 5% of your overall grade. You are encouraged to try this practice exam under timed (2 hour) conditions before attempting the proctored course examination.

To learn about ProctorU's exam proctoring, system test links, and privacy policy, visit www.colorado.edu/ecee/online-masters/current-students/proctoru.

Grading

Assignment
Percentage of Grade

Week 1: Homework Assignment 1: Ch 7: AC Equivalent Circuit Modeling

12%

Week 2: Homework Assignment 2: Ch 8: Converter Transfer Functions - Part 1

12%

Week 3: Homework Assignment 3: Ch 8: Converter Transfer Functions - Part 2

13%

Week 4: Homework Assignment 4 Part 1: Ch 9: Controller Design

8%

Week 4: Homework Assignment 4 Part 2 (Simulation): Ch 9: Controller Design

5%

Week 4: Practice Exam

5%

W​eek 4: Final Exam

45%

Letter Grade Rubric

Letter Grade 
Minimum Percentage

A

92%

A-

90%

B+

88%

B

82%

B-

80%

C+

78%

C

72%

C-

70%

D+

68%

D

56%

F

0%