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Converter Circuits

This course is part of Power Electronics Specialization

55,818 already enrolled

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Gain insight into a topic and learn the fundamentals.
4.8

1,396 reviews

Intermediate level
Some related experience required
Flexible schedule
2 weeks at 10 hours a week
Learn at your own pace
Gain insight into a topic and learn the fundamentals.
4.8

1,396 reviews

Intermediate level
Some related experience required
Flexible schedule
2 weeks at 10 hours a week
Learn at your own pace

What you'll learn

  • Understand how to implement the power semiconductor devices in a switching converter

  • Understand the origins of the discontinuous conduction mode and be able to solve converters operating in DCM

  • Understand the basic dc-dc converter and dc-ac inverter circuits

  • Understand how to implement transformer isolation in a dc-dc converter, including the popular forward and flyback converter topologies

Details to know

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Assessments

4 assignments

Taught in English
95%
Most learners liked this course

Build your subject-matter expertise

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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  • Gain a foundational understanding of a subject or tool
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There are 4 modules in this course

This course can also be taken for academic credit as ECEA 5701, part of CU Boulder’s Master of Science in Electrical Engineering degree.

This course introduces more advanced concepts of switched-mode converter circuits. Realization of the power semiconductors in inverters or in converters having bidirectional power flow is explained. Power diodes, power MOSFETs, and IGBTs are explained, along with the origins of their switching times. Equivalent circuit models are refined to include the effects of switching loss. The discontinuous conduction mode is described and analyzed. A number of well-known converter circuit topologies are explored, including those with transformer isolation. The homework assignments include a boost converter and an H-bridge inverter used in a grid-interfaced solar inverter system, as well as transformer-isolated forward and flyback converters. After completing this course, you will: ● Understand how to implement the power semiconductor devices in a switching converter ● Understand the origins of the discontinuous conduction mode and be able to solve converters operating in DCM ● Understand the basic dc-dc converter and dc-ac inverter circuits ● Understand how to implement transformer isolation in a dc-dc converter, including the popular forward and flyback converter topologies Completion of the first course Introduction to Power Electronics is the assumed prerequisite for this course.

How to implement the switches using transistors and diodes, including applications having bidirectional power flow or ac outputs.

What's included

3 videos4 readings1 assignment2 discussion prompts

3 videos•Total 51 minutes
  • Sect. 4.1.1 Single-Quadrant Switches•22 minutes
  • Sect. 4.1.2 Current-Bidirectional Switches•13 minutes
  • Sects. 4.1.3-5 Two- and Four-Quadrant Switches, Synchronous Rectifiers•16 minutes
4 readings•Total 31 minutes
  • Course Updates and Accessibility Support•1 minute
  • Non-Credit Students: Welcome and Where to Find Help•10 minutes
  • If you have problems with the Coursera system•10 minutes
  • Homework Assignment 1: hard copy•10 minutes
1 assignment•Total 180 minutes
  • Homework Assignment 1: Switch Realization•180 minutes
2 discussion prompts•Total 20 minutes
  • Introduce Yourself•10 minutes
  • Homework Discussion: Switch Realization•10 minutes

Basics of power semiconductor switches, including the origins of switching times and switching loss. How to incorporate switching loss into equivalent circuit models. MOSFETs, IGBTs, and gate driver considerations.

What's included

11 videos2 readings1 assignment2 discussion prompts

11 videos•Total 202 minutes
  • Sect. 4.2.0 Introduction to Power Semiconductors•28 minutes
  • Sect. 4.2.1.1 Diode Rectifiers•20 minutes
  • Sect. 4.2.1.2 Equivalent Circuit Modeling of Switching Loss•16 minutes
  • Sect. 4.2.1.3 Boost Converter Example•12 minutes
  • Sect. 4.2.1.4 More About Rectifiers•21 minutes
  • Sect. 4.2.2.1 Power MOSFETs•18 minutes
  • Sect. 4.2.2.2 MOSFET Gate Drivers•27 minutes
  • Sect. 4.2.3 BJTs and IGBTs•26 minutes
  • Sect. 4.3 More About Switching Loss•6 minutes
  • Wide Bandgap Power Semiconductors•14 minutes
  • Simulation of a Synchronous Boost Converter•14 minutes
2 readings•Total 2 minutes
  • LTspice File: Synchronous Boost Converter•1 minute
  • Hard copy and zip file for simulation assignment•1 minute
1 assignment•Total 90 minutes
  • Homework Assignment #2: Simulation•90 minutes
2 discussion prompts•Total 20 minutes
  • Homework Discussion: Simulation Assignment•10 minutes
  • Optional Forum: Followup Questions•10 minutes

The discontinuous conduction mode (DCM) arising from unidirectional switch realization. Analysis of mode boundaries and output voltage.

What's included

3 videos1 reading1 assignment1 discussion prompt

3 videos•Total 50 minutes
  • Sect. 5.1 Origin of DCM and Mode Boundary•14 minutes
  • Sect. 5.2 Analysis of the Conversion Ratio M(D,K)•16 minutes
  • Sect. 5.3 Boost Converter Example•20 minutes
1 reading•Total 10 minutes
  • Homework Assignment 3: Hard Copy•10 minutes
1 assignment•Total 180 minutes
  • Homework Assignment #3•180 minutes
1 discussion prompt•Total 10 minutes
  • Homework Discussion: Switching Loss and DCM•10 minutes

Some well-known converter circuits and their origins. How to incorporate transformer isolation into a dc-dc converter. Analysis and equivalent circuit modeling of transformer-isolated converters.

What's included

6 videos1 reading1 assignment1 discussion prompt

6 videos•Total 91 minutes
  • Sect. 6.1.1-2 DC-DC Converter Topologies•15 minutes
  • Sect. 6.1.4 How to Synthesize an Inverter•10 minutes
  • Sect. 6.2 A Short List of Nonisolated Converters•8 minutes
  • Sect. 6.3 Transformers•13 minutes
  • Sect. 6.3.2 The Forward Converter•30 minutes
  • Sect. 6.3.4 The Flyback Converter•14 minutes
1 reading•Total 10 minutes
  • Homework Assignment #4: Hard Copy•10 minutes
1 assignment•Total 180 minutes
  • Homework Assignment #4: Chapter 6•180 minutes
1 discussion prompt•Total 10 minutes
  • Homework Discussion: Transformer Isolation•10 minutes

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Build toward a degree

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
4.7 (213 ratings)
University of Colorado Boulder
11 Courses•165,516 learners

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AK
·

Reviewed on May 7, 2019

The 2nd course in the specialization is more detailed and explained thoroughly. Tough quizzes, great assignments! And Dr. Robert Erickson is amazing as usual!

I
·

Reviewed on Jul 16, 2020

Good and straight forward. This is what education should be like. A more rigorous way of teaching does not necessary convey valuable information. Thank you and please keep it up

AR
·

Reviewed on Jan 13, 2017

Very helpful course. This course has helped me in getting a good insight into Power Electronics. Thanks alot Dr. Robert Erickson.

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When you enroll in the course, you get access to all of the courses in the Specialization, and you earn a certificate when you complete the work. Your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile.

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