Course detail

Power Electronics M2

FEKT-MPC-VE2Acad. year: 2025/2026

Magnetic circuits in power electronics. Optimum design of inductors with a magnetic core. Voltage transformer, current transformer - theory and design. High-frequency power transformers. Rectifiers for DC/DC converters, including power factor correction. Power converters with a transformer (switching power supplies). Control circuits, gate drivers, current sensing for feedback control. Electromagnetic compatibility (EMC). Basics of printed circuit board design for power electronics.

 

Course outline: 

Magnetic circuits for power electronics, magnetic materials (cores).

Optimum design of inductors with a gapped magnetic core.

Voltage transformer, current transformer - theory and design. High-frequency power transformers.

Switching power supplies and chargers - basic principles and requirements.

Mains rectifiers, power factor correction circuits - passive and active, 1ph/3ph.

Two-switch forward converter.

Push-pull bridge converter.

Resonant converters. Modern switching semiconductors (SiC, GaN).

Control circuits for switching power supplies.

Gate drivers for power transistors.

Current sensors for power electronics.

Electromagnetic compatibility (EMC).

Basic principles of printed circuit board (PCB) design for power electronics.

 

 

 

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

Ing. Petr Procházka, Ph.D.

Department

Department of Power Electrical and Electronic Engineering (UVEE)

Entry knowledge

Student must have the previous knowledge from the applied mathematics:
- To use and to apply the mathematical operations above complex numbers in the component and polar representation (summation, subtraction, multiplication, division, and rectification of the complex fraction).
- To apply the basic principles of the integral and differential calculus of one variable: description of the inductor work, i.e. induction law in the differential and integral form, similarly the dif. and integr. relation between instant values of the current and voltage at the capacitor. Calculus of the mean and RMS values of the periodical function.

Student must have the previous general knowledge and ability:
- To describe basic properties of the discrete electronic devices (diode, bipolar and unipolar transistor).
- To attend the course BREB (Control Electronics).
- To be able practically to use and to apply the following tools for the analysis and synthesis of the electric circuits: 1st and 2nd Kirchhoff laws, Ohm law, induction law in the differential and integral form.

Rules for evaluation and completion of the course

Requirements for completion of a course are specified by a regulation issued by the lecturer responsible for the course and updated for every.
The attendance at the all numerical and laboratory exercises is required.

Aims

Knowledge of DC/DC converters with transformer, switching power supplies and related topics. Good knowledge of magnetic circuit design for power electronics.

Graduate will be able to:

-Define a linear magnetic circuit and its substitutional diagram. Define the meaning of magnetic permeability and all magnetic quantities, including relationships between them.

-List basic types and properties of magnetic materials.

-Design and calculate an inductor with a gapped magnetic core.

-Analyze and design a voltage transformer. Define current and voltage transfer.

-Analyze and design a current transformer. Define measurement error.

-Describe basic types and specific properties of modern power switching semiconductors (Si, SiC, GaN).

-Describe two-switch forward and push-pull converter with a transformer. Define current and voltage waveforms.

-Describe flyback converter with a transformer. Define current and voltage waveforms.

-Describe basic advantages and disadvantages of resonant converters.

-Describe control circuit structure for switching power supplies.

-Describe current sensors for dc and ac current.

-Describe origin and suppression of electromagnetic interference in switching converters.

-Define basic requirements for design of circuit boards (PCB) for power electronics.

 

 

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Abraham Pressman, Keith Billings, Taylor Morey, Switching Power Supply Design, ISBN 978-0071482721 (CS)
Caha Z., Černý M.: Elektrické pohony. SNTL, 1990. (CS)
Chee-Mun Ong: Dynamic Simulation of Electric Machinery. Prentice-Hall, 1998. (EN)
Patočka M.: Vybrané statě z výkonové elektroniky, sv.I. (CS)
Patočka M.: Vybrané statě z výkonové elektroniky, sv.II. (CS)

Recommended reading

Not applicable.

Elearning

eLearning: currently opened course

Classification of course in study plans

  • Programme MPC-SVE Master's 1 year of study, summer semester, compulsory-optional, profile core courses

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

Ing. Jan Martiš, Ph.D.

Syllabus

1. Snubber circuits and soft switching technique for the switching transistors.
2. DC supplying of the power converters.
3. Electromagnetic compatibility (EMC) in the LF frequency band.
4. Electromagnetic compatibility (EMC) in the HF frequency band.
5. Magnetic phenomena in the power electronics.
6. Optimal design of the chokes with the ferromagnetic core and the air gap.
7. Optimal design of the air coils and reactors.
8. Transformers: mathematical models, equivalent circuit, substitute circuit.
9. Voltage transformer. Current transformer. Power pulse transformers.
10. Power converters with the pulse transformer (switch-mode supplies).
11. Single-end forward converter.
12. Double-end forward converter.
13. Current sensors. Rogowski belt.

Fundamentals seminar

26 hours, optionally

Teacher / Lecturer

Ing. Jan Martiš, Ph.D.

Syllabus

1. Snubber circuits and soft switching technique for the switching transistors.
2. DC supplying of the power converters.
3. Electromagnetic compatibility (EMC) in the LF frequency band.
4. Electromagnetic compatibility (EMC) in the HF frequency band.
5. Magnetic phenomena in the power electronics.
6. Optimal design of the chokes with the ferromagnetic core and the air gap.
7. Optimal design of the air coils and reactors.
8. Transformers: mathematical models, equivalent circuit, substitute circuit.
9. Voltage transformer. Current transformer. Power pulse transformers.
10. Power converters with the pulse transformer (switch-mode supplies).
11. Single-end forward converter.
12. Double-end forward converter.
13. Current sensors. Rogowski belt.

Elearning

eLearning: currently opened course