Course detail

Industrial Electronics

FSI-RNIAcad. year: 2021/2022

Linear and non-linear circuits with operational amplifiers (amplifiers, filters, rectifiers, signal generators, comparators, more complicated circuits - all with respect to control circuits for pulse converters). Methods of current and voltage sensing. True power sensing in DC/DC converters. Typical circuit realizations for control electronics of pulse converters. Square-wave signal generators. Drivers for power MOSFETs and IGBTs, phase lock loop.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

doc. Ing. Pavel Vorel, Ph.D.

Department

Institute of Solid Mechanics, Mechatronics and Biomechanics (ÚMTMB)

Learning outcomes of the course unit

Students learn how to design electronic circuits used typically in pulse converters, DC/AC inverters and electrical drives.

Prerequisites

Basic knowledge in theoretical electrical engineering and mathematics (derivation, integration, complex numbers operations).

Co-requisites

Not applicable.

Planned learning activities and teaching methods

The course is taught through lectures explaining the basic principles and theory of the discipline. Exercises are focused on practical skills related to the lectures.

Assesment methods and criteria linked to learning outcomes



Evaluation:
1st semester test: 10 points
2nd semester test: 20 points
Final accreditation test: 70 points

Course curriculum

1. Methods of current sensing - shunt resistor, measuring current transformer in various applications (with a previous expllanation of principle and important consequences of a voltage transformer).

2. Methods of current sensing - current sensor LEM, Rgowski coil.

3. Methods of voltage sensiing - resistive divider with a filter capacitor, differential amplifier, isolating amplifiers, voltage LEM sensor, modulation methods of a galvanically separated voltage sensisng.  

4. Methods of DC/DC converter true output power sensing - using of a digital (or analog) multilpliicator, measuring the average value of the DC link current, "sampling" the output current with the duty cycle, applications using the control for a demanded power.

5. Typical circuit realizations in the control of pulse converters (various used typical circuits and ways of solution).

6. Square-wave generators (RC, crystal, with transistorts, operational amplifiers and comparators, with logical gates - various circuits). 

7. Square-wave generators - second part (RC, crystal, with transistorts, operational amplifiers and comparators, with logical gates - various circuits). 

8. Drivers for power MOSFET a IGBT transistors - principle, system requirements, saturation protection explanation, problems of parasitic capacitances, relation to the control circuits interference, power stages construction.

9. Driver with a common transfer of the driving signal and the driving energy via a pulse transformer - description, design steps, calculations, consequences, circuit modifications. Driver with an optocoupler - requirements, circuit example.

10.  Driver with optical fibres - usage, example circuits, bootstrap capacitor circuitry - variants, usage limits, properties.

11. Galvanically separated DC supply for the secondary part of drivers - resonant converter, forward converter with a resonant demagnetisation, further possibilities.

12. Integrated drivers - examples, more complicated driving circuits (enabling a soft switching-off of more transistors operating in prallel) - circuit examples, analysis of the circuits.

13. Phase lock loop - principle, description, block diagram, detailed schematics, usage examples in electronics. 

Work placements

Not applicable.

Aims

Students will obtain a knowledge about typical electronic circuits in industrial applications especially in control electronics, electrical drivers, measurement and control circuits used in power electronics.

 

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

Attendance at the practical training is obligatory.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Vorel P.: Řídicí členy v elektrických pohonech

Recommended reading

Not applicable.

eLearning

eLearning: currently opened course

Classification of course in study plans

  • Programme B3A-P Bachelor's

    branch B-MET , 3. year of study, summer semester, compulsory

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

doc. Ing. Pavel Vorel, Ph.D.

Syllabus

1. Current sensing in pulse converters - shunt, all consequences
2. Current sensing in pulse converters - measuring current transformer
3. Current sensing in pulse converters - LEM sensor
4. Rogowski coil
5. Voltage sensing in pulse converters
6. Output power sensing in pulse converters - methods
7. Typical circuit realizations in control circuits of pulse converters
8. Astable flip-flops
9. Drivers for power MOSFETs and IGBTs - system requirements, ways of the galvanic separation.
10. Drivers for power MOSFETs and IGBTs - driver with the signal transfer together with the driving energy with a magnetic way.
11. Drivers for power MOSFETs and IGBTs - supplying the secondary side of the driver, bootstrap capacitor
12. Phase locked loop
13. Speed and position sensing

Computer-assisted exercise

26 hours, compulsory

Teacher / Lecturer

Ing. Radek Tománek

Syllabus

1. Current sensing in pulse converters - shunt, all consequences
2. Current sensing in pulse converters - measuring current transformer
3. Current sensing in pulse converters - LEM sensor
4. Rogowski coil
5. Voltage sensing in pulse converters
6. Output power sensing in pulse converters - methods
7. Typical circuit realizations in control circuits of pulse converters
8. Astable flip-flops
9. Drivers for power MOSFETs and IGBTs - system requirements, ways of the galvanic separation.
10. Drivers for power MOSFETs and IGBTs - driver with the signal transfer together with the driving energy with a magnetic way.
11. Drivers for power MOSFETs and IGBTs - supplying the secondary side of the driver, bootstrap capacitor
12. Phase locked loop
13. Speed and position sensing

E-learning texts

otázky ke zkoušce RNI (cs)

eLearning

eLearning: currently opened course