Converter Control

Converter Control

This course is part of Power Electronics Specialization

Instructor: Dr. Robert Erickson

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30,392 already enrolled

4 modules

Gain insight into a topic and learn the fundamentals.

650 reviews

Intermediate level

Some related experience required

Flexible schedule

2 weeks at 10 hours a week

Learn at your own pace

93%

Most learners liked this course

4 modules

Gain insight into a topic and learn the fundamentals.

650 reviews

Intermediate level

Some related experience required

Flexible schedule

2 weeks at 10 hours a week

Learn at your own pace

93%

Most learners liked this course

What you'll learn

Be able to design and analyze the feedback systems of switching regulators

Skills you'll gain

Tools you'll learn

Graphical Tools

Details to know

Shareable certificate

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Assessments

5 assignments

Taught in English

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This course is part of the Power Electronics Specialization

When you enroll in this course, you'll also be enrolled in this Specialization.

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There are 4 modules in this course

This course can also be taken for academic credit as ECEA 5702, part of CU Boulder’s Master of Science in Electrical Engineering degree.

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. This course assumes prior completion of courses Introduction to Power Electronics and Converter Circuits.

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.

What's included

8 videos3 readings1 assignment1 discussion prompt

8 videos Total 114 minutes

Sect 7.1 Introduction to AC Modeling 28 minutes
Sects 7.2.1-4 Averaged AC Modeling 8 minutes
*Sect 7.2.2 Discussion of Averaging 15 minutes
Sect 7.2.5 Perturbation and Linearization 18 minutes
Sects 7.2.6-8 Construction of Equivalent Circuit 12 minutes
Sect 7.6 Modeling the Pulse-Width Modulator 10 minutes
Sect 7.5 The Canonical Model 20 minutes
Sect7.3 State-Space Averaging 2 minutes

3 readings Total 16 minutes

Course Updates and Accessibility Support 1 minute
Non-Credit Students: Welcome and Where to Find Help 10 minutes
Homework 1 Materials 5 minutes

1 assignment Total 180 minutes

Homework Assignment 1: Chapter 7 180 minutes

1 discussion prompt Total 10 minutes

Introduce Yourself 10 minutes

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.

What's included

7 videos1 reading1 assignment

7 videos Total 112 minutes

8.0 Introduction to Design-Oriented Analysis 13 minutes
8.1 Review of Bode Diagrams: Pole 25 minutes
8.1.2 Other Basic Terms 9 minutes
8.1.5 Combinations 21 minutes
8.1.6 Second-order Response: Resonance 18 minutes
8.1.7 The Low-Q Approximation 9 minutes
8.1.8 Analytical Factoring of Higher-Order Polynomials 16 minutes

1 reading Total 5 minutes

Homework 2 Materials 5 minutes

1 assignment Total 180 minutes

Homework Assignment 2: Ch. 8, Transfer Functions 180 minutes

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

What's included

5 videos1 reading1 assignment

5 videos Total 79 minutes

8.2 Analysis of Converter Transfer Functions 16 minutes
8.2.2 Transfer Functions of Basic Converters 10 minutes
8.3.1 Graphical Construction of Impedances 19 minutes
8.3.3 Graphical Construction of Parallel and More Complex Impedances 17 minutes
8.3.5 Graphical Construction of Converter Transfer Functions 15 minutes

1 reading Total 5 minutes

Homework 3 Materials 5 minutes

1 assignment Total 180 minutes

Homework Assignment 3: Construction of Transfer Functions 180 minutes

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.

What's included

8 videos1 reading2 assignments

8 videos Total 159 minutes

9.1-2 Introduction 21 minutes
9.3 Construction of Closed-loop Transfer Functions 11 minutes
9.4.1 Stability 21 minutes
9.4.2 Phase Margin vs. Closed-loop Q 20 minutes
9.5 Regulator Design 19 minutes
9.5.4 Design Example 18 minutes
Op-amp Compensator Design 29 minutes
9.5.5 Another Example: Point-of-Load Regulator 19 minutes

1 reading Total 10 minutes

HW#4 Materials 10 minutes

2 assignments Total 110 minutes

Homework Assignment 4 (Part 1): Feedback 60 minutes
Homework Assignment 4 (Part 2): Closed-Loop Simulation 50 minutes

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This course is part of the following degree program(s) offered by University of Colorado Boulder. If you are admitted and enroll, your completed coursework may count toward your degree learning and your progress can transfer with you.¹

Instructor

Instructor ratings

(94 ratings)

Dr. Robert Erickson

University of Colorado Boulder

11 Courses 162,321 learners

Offered by

University of Colorado Boulder

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Reviewed on Dec 20, 2018

An important course for understanding the design procedures of converters as well as the importance of control system in them.

Reviewed on Apr 26, 2020

very well designed course content with a very eloquent explanation of Dr. Erickson. Highly recommended for power electronics engineers!!

Reviewed on Jun 25, 2016

The analysis and materials of this course are very useful. A great section. If the MATLAB script for calculating the converter Poles and Zeros can be provided will be even better.

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