Converter Circuits

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Converter Circuits

Coursera (CC)
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Opleiderscore: starstarstarstar_halfstar_border 7,2 Coursera (CC) heeft een gemiddelde beoordeling van 7,2 (uit 6 ervaringen)

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Beschrijving

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About this course: 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…

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When you enroll for courses through Coursera you get to choose for a paid plan or for a free plan

  • Free plan: No certicification and/or audit only. You will have access to all course materials except graded items.
  • Paid plan: Commit to earning a Certificate—it's a trusted, shareable way to showcase your new skills.

About this course: 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.

Created by:  University of Colorado Boulder
  • Taught by:  Dr. Robert Erickson, Professor

    Electrical, Computer, and Energy Engineering
Basic Info Course 2 of 6 in the Power Electronics Specialization Commitment 4 weeks of study, 1-3 hours/week Language English How To Pass Pass all graded assignments to complete the course. User Ratings 4.9 stars Average User Rating 4.9See what learners said Coursework

Each course is like an interactive textbook, featuring pre-recorded videos, quizzes and projects.

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Syllabus


WEEK 1


Ch 4.1: Switch Realization
How to implement the switches using transistors and diodes, including applications having bidirectional power flow or ac outputs


3 videos, 3 readings expand


  1. Reading: Syllabus for Course 2
  2. Reading: If you have problems with the Coursera system
  3. Video: Sect. 4.1.1 Single-Quadrant Switches
  4. Video: Sect. 4.1.2 Current-Bidirectional Switches
  5. Video: Sects. 4.1.3-5 Two- and Four-Quadrant Switches, Synchronous Rectifiers
  6. Reading: Homework Assignment 1: hard copy
  7. Discussion Prompt: Homework Discussion: Switch Realization

Graded: Homework Assignment 1: Switch Realization

WEEK 2


Ch 4.2: Power Semiconductor Switches
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.


10 videos, 2 readings expand


  1. Video: Sect. 4.2.0 Introduction to Power Semiconductors
  2. Video: Sect. 4.2.1.1 Diode Rectifiers
  3. Video: Sect. 4.2.1.2 Equivalent Circuit Modeling of Switching Loss
  4. Video: Sect. 4.2.1.3 Boost Converter Example
  5. Video: Sect. 4.2.1.4 About Rectifiers
  6. Video: Sect. 4.2.2.1 Power MOSFETs
  7. Video: Sect. 4.2.2.2 MOSFET Gate Drivers
  8. Video: Sect. 4.2.3 BJTs and IGBTs
  9. Video: Sect. 4.3 About Switching Loss
  10. Video: Simulation of a Synchronous Boost Converter
  11. Reading: LTspice File: Synchronous Boost Converter
  12. Reading: Hard copy and zip file for simulation assignment
  13. Discussion Prompt: Homework Discussion: Simulation Assignment
  14. Discussion Prompt: Optional Forum: Followup Questions

Graded: Homework Assignment #2: Simulation

WEEK 3


Ch 5: Discontinuous Conduction Mode
The discontinuous conduction mode (DCM) arising from unidirectional switch realization. Analysis of mode boundaries and output voltage.


3 videos, 1 reading expand


  1. Video: Sect. 5.1 Origin of DCM and Mode Boundary
  2. Video: Sect. 5.2 Analysis of the Conversion Ratio M(D,K)
  3. Video: Sect. 5.3 Boost Converter Example
  4. Reading: Homework Assignment 3: Hard Copy
  5. Discussion Prompt: Homework Discussion: Switching Loss and DCM

Graded: Homework Assignment #3

WEEK 4


Ch 6: Converter Circuits
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.


6 videos, 1 reading expand


  1. Video: Sect. 6.1.1-2 DC-DC Converter Topologies
  2. Video: Sect. 6.1.4 How to Synthesize an Inverter
  3. Video: Sect. 6.2 A Short List of Nonisolated Converters
  4. Video: Sect. 6.3 Transformers
  5. Video: Sect. 6.3.2 The Forward Converter
  6. Video: Sect. 6.3.4 The Flyback Converter
  7. Reading: Homework Assignment #4: Hard Copy
  8. Discussion Prompt: Homework Discussion: Transformer Isolation

Graded: Homework Assignment #4: Chapter 6

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