Power Electronics

Course code ELEC3250
Not available in 2016


Deals with switching issues in switch mode power supplies and high power converters and inverters. The switch mode power supply section investigates the operation and design of the standard switching power supply topologies such as the buck, boost, buck-boost, and Cuk switch mode converters. There is a brief introduction to resonant converter technology. The second section of the course considers high power converters and inverters. The terminal characteristics of the power devices used are investigated. Standard inverter topologies introduced, and various PWM algorithms for them are developed. Power quality issues and some solutions are presented. Multilevel converter topologies are introduced.


Not currently available.

This Course was last offered in Semester 2 - 2015.

Learning Outcomes

1. Gain an understanding of switching electronics and solid state power conversion along with knowledge of some practical applications of this technology.

2. Analyse, design and construct switch mode power supply circuits ¿ specifically the buck, boost and buck-boost converters.

3. Discuss the concepts of zero voltage and zero current switching as used in switched mode power supply converters.

4. Appraise the design implications of the relevant semiconductor physics issues that impinge on the practical use of power semiconductor devices.

5. Discuss the main issues associated with the use of feedback control loops for switched mode power supplies.

6. Analyse power electronic systems using space vectors.

7. Describe the operational principles of single and three phase PWM inverters.

8. Discuss the operational principles of multilevel and matrix converters.

9. Describe power quality issues, discuss the use of power electronic systems to alleviate power quality problems.

10. Discuss the detailed operational characteristics of solar cells that are relevant to the design and control of grid interfacing converters.

11. Discuss and design grid connected converter systems for renewables

12. Appreciate the national and international safety standards that are relevant to grid- connected inverters for renewable applications.


  1. Fundamentals of switch mode device operation.
  2. Switching electronic devices. (Types, characteristics, limitations).
  3. DC-DC converters buck, boost, buck-boost
  4. High power devices
  5. Rectifiers and controlled rectifiers.
  6. Introduction to Power quality issues
  7. Inverters and PWM control
  8. Multilevel converters and applications.

Assumed Knowledge

ELEC2320 and ELEC3240

Assessment Items

Written Assignment: Written Assignment

Quiz: Mid Semester Quiz

Formal Examination: Formal Examination

Contact Hours



Face to Face On Campus 4 hour(s) per Week for Full Term


Face to Face On Campus 1 hour(s) per Week for Full Term