Single-Course English 5 ECTS

Basic power electronics in energy systems

Overall Course Objectives

The overall purpose of the course is to provide the student with a basic understanding of power supplies (uninsulated and insulated) in DC and AC converters as well as one-phase and three-phase circuits. In addition, courses include a basic knowledge of the use of switch mode power electronics in simple, regulated systems, eg in motor drives, renewable energy systems and amplifiers.

Learning Objectives

  • describe and calculate the concepts of efficiency, mean value and power factor
  • classify converter types and pulse-width modulation
  • explain crucial properties of passive and active components in relation to power converters
  • determine the time course of voltages and currents for the basic converter topologies (buck, boost and buck-boost) and derivatives thereof
  • derive the transfer function for both the basic topologies and derivatives thereof
  • determine basic parameters in power electronics circuits based on simulations
  • design transformers in galvanically separated topologies (f.x. forward, flyback, push-pull, half-bridge, full-bridge)
  • determine basic parameters in switch mode circuits based on measurements on these
  • calculate signals and power losses in switch-mode power circuits
  • specify power converters and their components using English technical language
  • clarify the operation of single-phase and three-phase pulse-width modulated inverters and pulse-width modulated rectifiers
  • explain crucial features of V / Hz control of three-phase AC machines and frequency converters

Course Content

Overview of power electronics
Passiv components: capacitors and inductors
Signals: RMS value and average value
Active components: diodes and MOSETs as switches
Rectifier circuits
Nonisolated converters: buck, boost and buck-boost converters
Properties, states and supporting circuits of power converters
Isolated converters: single phase tranformers, forward and flyback converters
Single- and three-phase PWM inverters and rectifiers
Modulation strategies (PWM)
Three-phase V/Hz control of AC machines
Single-/multiple-quadrant operation
Switch mode drives and audio amplifiers
Simple feedback systems

Recommended prerequisites

-> critical: electrical components and Ohm’s Law & Kirchhoff’s rules, such as:
Electrical circuits 1 & 2 or
Electrical Engineering & Analog Electronics or
Introducing Electronics & Circuit Theory 2 or
-> desired: basic understanding of Maxwell’s equations, such as:
Electromagnetism or Electrophysics and Materials
-> advantageous: Signals and systems, such as:
Linear systems and signals.
(If in doubt, contact to the course responsible!)

Teaching Method

Videos and quizzes, chat-based communication, problem solving and lab work.
Guest lectures
Mandatory exercises and mandatory group work


A number of compulsory exercises/problems are part of the course. Those are distributed throughout the semester.
E-learning: the course is ready for digital twin university & education 4.0: the theory part can be taken “self-paced” to a high extend (based on videos, quizzes and chat-based help).
The hands-on part can be organised as a camp (but either camp or as regular course – not both).

Limited number of seats

Minimum: 10.

Please be aware that this course will only be held if the required minimum number of participants is met. You will be informed 8 days before the start of the course, whether the course will be held.

See course in the course database.





13 weeks




DTU Lyngby Campus

Course code 34620
Course type Bachelor
Semester start Week 5
Semester end Week 19
Days Thurs 13-17

7.500,00 DKK

Please note that this course has participants limitation. Read more