Course detail

Design of Electronic Devices

FEKT-BKC-KEZAcad. year: 2024/2025

Design and properties of signal lines, supply lines and distribution frames - suppression of interference and ground loops.
Parasitic events and their suppression - coupling in input and output circuits, parasitic capacitances and inductances, thermoelectric voltage, overvoltage on inductive load, reflections on lines, crosstalk. Electric and magnetic field screening, equipotential guarding. Choice of components and application recommendation - discrete elements, operational amplifiers, comparators, electronic switches, A/D and D/A converters, sample-and-hold elements, digital circuits, microprocessors. Mechanics design: regulation, control and indication elements - lay-out on the front panel, instrument housing design, heat removal, thermostatic elements. Printed circuits, wired printed circuits, connection of conductors and components. Safety requirements in instrument design. Methodology for the debugging of electronic device.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

prof. Ing. Kamil Vrba, CSc.

Department

Department of Telecommunications (UTKO)

Entry knowledge

Basic knowledge of electrical engineering theory and elementary basics of analog and digital technology is required.

Rules for evaluation and completion of the course

Requirements for the completion of a course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.
Up to 20 points can be had for design exercises. Part of the design exercises can be in the form of individual project. The examination proper is a written examination and up to 80 points can be awarded for it. The examination is focused on testing the knowledge of application principles in the design of electronic instruments, from the viewpoint of both electronic and mechanical solutions.

Design exercises are obligatory. If part of the design exercises is in the for a individual project, submitting the project is one of the conditions for awarding the credit. Justified absence from design exercises can be made up after prior arrangement with the instructor, usually in the credit week.

Aims

To be introduced to practical principles of designing electronic instruments and devices as regards both electrical and mechanical aspects. The course is practically suitable for all branches of BSc studies because it offers a close look at the actual work of a designer of electronic instruments and devices.
Students will acquire concrete application knowledge of electronic instrument design, which is otherwise obtained only through long-term development practice. Emphasis is laid on understanding the physical essence of parasitic events so that their knowledge can be applied to other cases. Students will learn to foresee and anticipate the appearance of many problems arising in the development of new instruments in both the electrical and the mechanical parts of the design. They will be able to design supply distribution and its blocking, implement shielding critical parts of equipment, they will know the application principles for various electronic circuit elements. They will be familiar with the principles of designing instrument cases inclusive of the lay-out of control and indicator elements on the front panel. They will be informed about the design of refrigeration of power elements inclusive of heat removal from instrument cases. The will learn the methodology of debugging electronic systems.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

VRBA, Kamil. Konstrukce elektronických zařízení. Elektronická skripta, Brno: VUT v Brně 2017

Recommended reading

NIKNEJAD, Ali, M.: Electromagnetics for High-Speed Analog and Digital Communication Circuits. Cambridge: Academic press 2007

Classification of course in study plans

  • Programme BKC-EKT Bachelor's 0 year of study, summer semester, elective
  • Programme BKC-TLI Bachelor's 3 year of study, summer semester, compulsory-optional

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

prof. Ing. Kamil Vrba, CSc.

Syllabus

1. Construction of signal links
2. Power supply design: distribution to individual systems, distribution on PCBs, power supply decoupling for analog and digital circuits
3. Grounding (earth) distribution, galvanic isolation of individual systems: low-frequency transformer, impulse transformer, optoelectronic, digital isolators with capacitive coupling
4. Electrical field shielding, magnetic field shielding, equipotential shielding
5. Selection of components and their application principles: RLC passive elements, connectors, piezoelectric crystal oscillators, overvoltage and overcurrent protection, operational amplifiers, comparators, sample-and-hold circuits, ADC and DAC converters, digital logic
6. Mechanical design: control and display elements and their layout on the front panel, types of instrument cabinets, resistance against shock and vibration, resistance to different environments, EMC protection
7. Heat removal from components and instrument cabinets,
8. Component interconnect methods - manual and machine soldering, solder joints defects
9. Safety requirements for electronic devices design

Laboratory exercise

26 hod., compulsory

Teacher / Lecturer

prof. Ing. Kamil Vrba, CSc.

Syllabus

Autodesk Eagle printed circuit board (PCB) layout editor and its characteristics, student/educational license limitations.
Control panel: creating a new project and schematic, work in schematic editor.
Command input options: standard icons, command line and menu Assign, context menu.
Available layers in schematic editor, checking finished schematic for errors (Electrical Rule Check).
Work with PCB layout editor, layer descripion, generating a new PCB from schematic, component placement techniques on complex boards.
Forward and back annotation between schematic and board, checking finished board for errors (Design Rule Check = DRC).
PCB design classes, setting up DRC according to a chosen class.
Advanced design techniques: Net Classes, grounding distribution on PCBs.
Trace length tuning (Meander command), differential pairs, how to calculate and draw them.
Library editor, internal structure of Eagle libraries (Symbol, Package, Device).
Production data generation, solder stop mask, PCB silk screen etc. Formats EPS, Gerber, Excellon.
Task automatization in Eagle: scripts (SCR) and User Language Programs (ULP).
Test in the classroom (designing a simple PCB).
Individual home project.