University of Colorado Boulder
Magnetics for Power Electronic Converters
University of Colorado Boulder

Magnetics for Power Electronic Converters

This course is part of Power Electronics Specialization

Taught in English

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Dr. Robert Erickson

Instructor: Dr. Robert Erickson

12,139 already enrolled

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Course

Gain insight into a topic and learn the fundamentals

4.8

(125 reviews)

Intermediate level

Recommended experience

17 hours (approximately)
Flexible schedule
Learn at your own pace
Progress towards a degree

What you'll learn

  • Understand the fundamentals of magnetic components, including inductors and transformers

  • Analyze and model losses in magnetic components, and understand design trade-offs 

  • Design and optimize inductors and transformers for switched-mode power converters

Details to know

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Assessments

4 quizzes

Course

Gain insight into a topic and learn the fundamentals

4.8

(125 reviews)

Intermediate level

Recommended experience

17 hours (approximately)
Flexible schedule
Learn at your own pace
Progress towards a degree

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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

Magnetics are an integral part of every switching converter. Often, the design of the magnetic devices cannot be isolated from the converter design. The power electronics engineer must not only model and design the converter, but must model and design the magnetics as well. Modeling and design of magnetics for switching converters is the topic of this course. In this module, basic magnetics theory is reviewed, including magnetic circuits, inductor modeling, and transformer modeling. This provides the technical tools needed in the remainder of the course to understand operation of magnetic devices, model their losses, and design magnetic devices for switching converters.

What's included

5 videos4 readings1 quiz

Eddy currents also cause power losses in winding conductors. This can lead to copper losses significantly in excess of the value predicted by the dc winding resistance. The specific conductor eddy current mechanisms are called the "skin effect" and the "proximity effect". These effects are most pronounced in high-current conductors of multilayer windings, particularly in high-frequency converters. This module explains these physical mechanisms and provides practical methods to compute these losses.

What's included

7 videos2 readings1 quiz

The goal of this chapter is to design inductors for switching converters. Specifically, magnetic elements such as filter inductors are designed using the Geometric Constant (Kg) method. The maximum flux density Bmax is specified in advance, and the element is designed to attain a given copper loss. Both single-winding inductors and multiple-winding elements such as coupled inductors and flyback transformers are considered.

What's included

8 videos1 reading1 quiz

In a substantial class of magnetic applications, the operating flux density is limited by core loss rather than saturation. For example, in a conventional high-frequency transformer, usually it is necessary to limit the core loss by operating at a reduced value of the peak ac flux density. Hence, design of core-loss-limited magnetic devices is characterized by finding the ac flux density that minimizes total core plus copper loss.This module considers the design of transformers and ac inductors for switching converters, including minimization of total loss. Design examples include the isolation transformers of a full bridge two-output converter and of an isolated Cuk converter.

What's included

5 videos1 reading1 quiz

Instructor

Instructor ratings
4.9 (54 ratings)
Dr. Robert Erickson
University of Colorado Boulder
11 Courses142,689 learners

Offered by

Recommended if you're interested in Electrical Engineering

Get a head start on your degree

This course is part of the following degree programs offered by University of Colorado Boulder. If you are admitted and enroll, your coursework can count toward your degree learning and your progress can transfer with you.

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