Free Course Image Power Electronics

Free online coursePower Electronics

Duration of the online course: 31 hours and 50 minutes

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Join MIT OpenCourseWare's free Power Electronics course to master topics like DC/DC converters, inverters, and thermal modeling. Ideal for aspiring electricians.

In this free course, learn about

  • Introduction and Fundamentals of Power Electronics
  • Non-Isolated DC-DC Converters
  • Magnetics and Magnetic Components
  • Isolated DC-DC Conversion and Transformer-Based Topologies
  • Losses, Protection, and Thermal Management
  • Inverters and Switched-Mode Rectifiers
  • Three-Phase Power Systems and Inverters
  • Modeling and Control of Power Converters
  • EMI and Power Electronics Filters
  • Switched-Capacitor and Soft-Switching Techniques
  • Resonant Power Conversion and Practical Implementation

Course Description

Welcome to the Power Electronics course offered by OpenCourseWare, an extensive journey meticulously curated for professionals in the electrician field. Clocking in at a comprehensive 31 hours and 50 minutes, this course delves deeply into the complexities and nuanced functionalities of power electronics, providing enriching content suitable for advancing skills and knowledge in this specialized domain.

The course kicks off with an introductory lecture that sets the stage for what power electronics entails, laying a solid foundation for the intricate topics that are to follow. From basic analysis methods and rectifiers, the curriculum swiftly advances to more detailed discussions on load regulation and power factor, ensuring learners grasp fundamental principles before moving on to more sophisticated components.

A significant portion of the course focuses on DC/DC converters, divided into multiple lectures to cover its many aspects thoroughly. These sessions are designed to provide a deep understanding of the conversion processes, efficiency optimization, and practical applications necessary for the robust electrical systems of the modern world.

Next, the focus shifts to magnetics, an essential topic in power electronics. With four comprehensive lectures dedicated to this subject, students will explore the intricacies of magnetic components and their critical role in the performance of electronic systems. This segment also delves into isolated DC/DC converters, emphasizing the importance of system isolation in certain applications.

Moving forward, the course addresses the vital concerns of switching losses and thermal management, key factors affecting the longevity and reliability of power electronic devices. This knowledge prepares learners to tackle real-world challenges related to device efficiency and cooling solutions effectively.

The subsequent lectures explore inverters and switched-mode rectifiers, pivotal in the conversion and regulation of electrical power. These detailed sessions aim to impart a deep understanding of inverter operations and the intricacies of three-phase systems, which are crucial for managing industrial power applications.

Control methods are another cornerstone of this course. Through detailed exploration over several lectures, learners will grasp various control strategies, including current-mode control. This segment is invaluable for ensuring stable and efficient operation of power electronic systems.

Electromagnetic interference (EMI) filters are thoroughly covered, emphasizing the design and implementation of EMI filters to mitigate noise. These lectures are essential for learners who wish to specialize in reducing unwanted electromagnetic noise in electronic systems.

The course also dives into the realm of switched-capacitor converters and soft switching techniques, advancing towards resonant power conversion methods. These segments provide advanced knowledge on minimizing losses and achieving higher efficiency in power conversion processes.

The concluding lectures focus on resonant converters, matching networks, and crucial practical aspects like gate drive and layout considerations, rounding off a curriculum that is nothing short of comprehensive. These final topics ensure that students are well-versed in the latest technological advancements and practical design intricacies.

By the end of this intensive program, participants will have acquired a thorough understanding of power electronics, equipping them with the skills and knowledge required to excel in their professional endeavors. Enroll now and take a vital step towards mastering power electronics with OpenCourseWare.

Course content

  • Video class: Lecture 1: Introduction to Power Electronics 43m
  • Exercise: What is the primary advantage of using a switched-mode power supply over a linear power supply in power electronics?
  • Video class: Lecture 2: Analysis Methods and Rectifiers 50m
  • Exercise: What is one key advantage of using a switching power supply over a linear power supply?
  • Video class: Lecture 3: Load Regulation 46m
  • Exercise: Which of the following statements about the behavior of diodes in a rectifier circuit with added AC-side inductance is true?
  • Video class: Lecture 4: Power Factor 52m
  • Exercise: What is the primary function of a circuit breaker in a home electrical system when connected to a power source?
  • Video class: Lecture 5: Intro to DC/DC, Part 1 47m
  • Exercise: What is the function of a boost converter in power electronics?
  • Video class: Lecture 6: DC/DC, Part 2 51m
  • Exercise: In a buck-boost converter, what is the primary characteristic that differentiates it from a standard buck or boost converter?
  • Video class: Lecture 7: DC/DC, Part 3 50m
  • Exercise: Which of the following statements is true when designing a buck-boost converter compared to buck or boost converters?
  • Video class: Lecture 8: DC/DC, Part 4 52m
  • Exercise: In a DC-to-DC converter operating in discontinuous conduction mode (DCM), which factor primarily differentiates the current ripple when compared to continuous conduction mode (CCM)?
  • Video class: Lecture 9: Magnetics, Part 1 50m
  • Exercise: What is the primary reason for including a gap in the magnetic core of an inductor?
  • Video class: Lecture 10: Magnetics, Part 2 50m
  • Exercise: What is a key factor that differentiates an ideal transformer from a non-ideal one in terms of energy storage?
  • Video class: Lecture 11: Magnetics, Part 3 50m
  • Exercise: In a multi-winding transformer, what is the primary characteristic of the 'T model' used to represent its electrical properties?
  • Video class: Lecture 12: Magnetics, Part 4 50m
  • Exercise: What is the primary reason for considering the skin effect in high frequency currents within power electronics?
  • Video class: Lecture 13: Isolated DC/DC Converters, Part 1 51m
  • Exercise: In the context of isolated power converters discussed, which advantage does the introduction of a transformer provide to a converter design?
  • Video class: Lecture 14: Isolated DC/DC Converters, Part 2 51m
  • Exercise: In the context of isolated DC/DC converters, what is the primary advantage of using a full-bridge converter over a forward converter?
  • Video class: Lecture 15: Switching Losses and Snubbers 42m
  • Exercise: What is a primary reason for utilizing snubbers in practical power electronics circuits involving switches like MOSFETs or IGBTs?
  • Video class: Lecture 16: Thermal Modeling and Heat Sinking 53m
  • Exercise: In power electronics, what are the three fundamental methods of heat transfer used to dissipate heat from electronic components?
  • Video class: Lecture 17: Inverters, Part 1 51m
  • Exercise: Which of the following components is predominantly associated with mitigating harmonic distortion when designing an inverter circuit?
  • Video class: Lecture 18: Inverters, Part 2 47m
  • Exercise: In power electronics, what advantage is achieved by using half-wave symmetry in waveform synthesis for inverters?
  • Video class: Lecture 19: Inverters, Part 3 52m
  • Exercise: What is one of the main benefits of using a neutral-point clamped (NPC) inverter in power electronics?
  • Video class: Lecture 20: Switched-Mode Rectifiers 51m
  • Exercise: In a full bridge inverter, what is the primary function of the pair of back-to-back synchronous buck converters?
  • Video class: Lecture 21: Three-Phase Systems, Part 1 44m
  • Exercise: What is one significant advantage of using a three-phase power system over a single-phase system?
  • Video class: Lecture 22: Three-Phase Systems, Part 2 52m
  • Exercise: In a three-phase power conversion system, what is the main advantage of using a three-phase bridge rectifier over a single-phase bridge rectifier?
  • Video class: Lecture 23: Three-Phase Inverters 51m
  • Exercise: What is an advantage of using a three-phase bridge inverter with active switches instead of constructing three independent single-phase inverters for a three-phase system?
  • Video class: Lecture 24: Control, Part 1 51m
  • Exercise: In the context of power converters, why is it important to develop a model that focuses on average behavior rather than the high-frequency switching details?
  • Video class: Lecture 25: Control, Part 2 50m
  • Exercise: In the context of DC/DC converter modeling, what does the state space averaging technique primarily aim to accomplish?
  • Video class: Lecture 26: Control, Part 3 51m
  • Exercise: Which of the following best describes the impact of a right half-plane zero on the control system's stability in a boost converter?
  • Video class: Lecture 27: Current-Mode Control 47m
  • Exercise: What is the primary purpose of using a compensating ramp in current mode control of power converters?
  • Video class: Lecture 28: EMI Filters, Part 1 46m
  • Exercise: What is the main reason for implementing filtering in power electronics circuits?
  • Video class: Lecture 29: EMI Filters, Part 2 50m
  • Exercise: What is the primary function of a Line Impedance Stabilization Network (LISN) in EMI testing?
  • Video class: Lecture 30: EMI Filters, Part 3: CM DM 50m
  • Exercise: What is one of the main reasons for using a common mode choke in an EMI filter design?
  • Video class: Lecture 31: Switched-Capacitor Convertors, Part 1 52m
  • Exercise: What is one of the main advantages of using switched capacitor converters over traditional converters with magnetic components?
  • Video class: Lecture 32: Switched-Capacitor Convertors, Part 2 50m
  • Exercise: What happens to the efficiency of charging a capacitor as the initial voltage on the capacitor approaches the supply voltage in a switched-capacitor circuit?
  • Video class: Lecture 33: Soft Switching, Part 1 51m
  • Exercise: In power electronics, what is one method to achieve zero voltage switching (ZVS) in a buck converter?
  • Video class: Lecture 34: Soft Switching, Part 2 50m
  • Exercise: What is one primary benefit of soft-switching techniques in power converters?
  • Video class: Lecture 35: Resonant Power Conversion, Part 1 50m
  • Exercise: In a resonant power converter, which of the following elements is critical in defining the characteristic impedance of a second-order resonant network?
  • Video class: Lecture 36: Resonant Power Conversion, Part 2 49m
  • Exercise: What is a common operational method for a resonant converter to achieve efficient power modulation?
  • Video class: Lecture 37: Resonant Converters: Matching Networks 55m
  • Exercise: What is the role of the tank circuit in a resonant DC-to-DC converter?
  • Video class: Lecture 38: Gate Drive, Level Shift, Layout 52m
  • Exercise: In practical implementation of a buck converter, which aspect is crucial to minimize for optimal performance?

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