Course detail

Power Supply Systems

FEKT-BNEZAcad. year: 2016/2017

The course is strongly oriented on practical knowledge, its aim is to teach students to properly choose type of electronics power supply and design it. Students get familiar with basic electronics components used in modern power supplies (both active and passive) including their parasitic properties. Different topologies of linear and switched mode power supplies are discussed. Isolated, non-isolated and autonomous power supplies are covered. Students perform simulation of elementary power supply circuitries, design a simple power supply using available CAD tools and design a PCB for it including manufacturing data output.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Learning outcomes of the course unit

The graduate is able to
o describe parasitic properties of real electronic components and evaluate their impact on power supply properties
o compare properties (qualities) of different electronic components and choose appropriate on for target application
o explain functionality of both linear and switched mode power supplies
o choose suitable power supply topology (both linear and switched) according to the design needs
o calculate values of and requirements on basic components of power a supply
o use basic CAD tools for power supply design
o design a protection and cooling for a power supply

Prerequisites

Students are expected to have knowledge of basic electronic components (resistor, capacitor, inductor, transformer, diode, bipolar and unipolar transistor, tyristor) and basic knowledge of differentiation and integration.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Techning methods include lectures, computer laboratories and practical laboratories. Course is taking advantage of e-learning (Moodle) system. Students have to prepare a single project during the course.

Assesment methods and criteria linked to learning outcomes

Student must pass all the laboratory and computer practices, he must elaborate and deliver all protocols and individual project, all in satisfactory quality. Students can gain up to 20 points during laboratory exercises (protocols are evaluated), up to 10 point for active work on PC exercises, up to 20 points for elaboration of individual design project and up to 50 points at final exam.

Course curriculum

1. Introduction to power supplies, principle of transformers
2. Properties of real transformers, principle and real properties of inductors
3. Properties of real capacitors and its application, properties of semiconductor rectifiers, diode rectifiers
4. Semiconductor switch components and their properties (bipolar and unipolar transistors, thyristor, triac, diac, IGBT), controlled-semiconductor rectifiers
5. Voltage references, Zener diodes, band-gap references
6. Parametric voltage regulators, linear voltage regulators with feedback
7. Integrated voltage regulators, charge pumps
8. Basic topologies of non-isolated switched-mode power supplies (inductor-based)
9. Basic topologies of isolated switched-mode power supplies
10. Synchronous rectification, parallel and multi-phase converters, bridge topologies
11. Quasi-resonant and resonant topologies, power factor correctors
12. Voltage regulator feedback design, protection and cooling of power supplies
13. Autonomous power supplies: primary and secondary cells, alternative power supplies.

Work placements

Not applicable.

Aims

Students get knowledge of basic principles of both switched and linear power supplies, they learn how to design and implement power supply systems using basic calculations and available CAD tools.

Specification of controlled education, way of implementation and compensation for absences

Evaluation of activities is specified by a regulation, which is issued by the lecturer responsible for the course annually.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

BROWN, M. Power Supply Cookbook. Newnes, 2nd edition, 2001. ISBN 0-7506-7329-X. (EN)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EEKR-B Bachelor's

    branch B-EST , 2. year of study, winter semester, optional specialized
    branch B-TLI , 3. year of study, winter semester, optional interdisciplinary

  • Programme EEKR-CZV lifelong learning

    branch ET-CZV , 1. year of study, winter semester, optional specialized

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

Syllabus

1. Diode rectifiers, computation of smoothing inductor and capacitor, characteristics of capacitors.
2. Design of transformers and chokes.
3. Controlled rectifiers, DC/AC converter with thyristor and triac, GTO, IGCT.
4. Linear voltage regulators, current regulators.
5. Voltage and current references.
6. Switching power supplies. Introduction to switching voltage regulators.
7. DC/DC converters, step-down converter, step-up converter, inverting voltage converter and Cuk converters.
8. Switching voltage regulators with transformer, flyback converter, forward converter.
9. Push-pull converter, half-bridge forward converter, full-bridge forward converter.
10. Resonant converter, EMI elimination.
11. Construction of power supplies, protection systems, cooling design.
12. Primary and secondary cells, electro-chemical power supplies.
13. Solar systems, nuclear and fuel cells.

Exercise in computer lab

13 hours, compulsory

Teacher / Lecturer

Syllabus

1. PSpice - introduction, diode rectifier simulation
2. PSpice - simulation of DC-DC converter
3. Individual project - specification
4. Eagle tutorial - schematic and PCB
5. Eagle tutorial - libraries and data export
6. Individual work on project

Laboratory exercise

13 hours, compulsory

Teacher / Lecturer

Syllabus

1. Diode rectifiers, integrated linear regulators
2. Reference voltage and current sources
3. DC-DC converters (with an inductor) and charge pumps
4. DC-DC converter - practical design
5. DC-AC and AC-DC converters