Course detail

Design of electronic devices

FEKT-BKEZAcad. year: 2014/2015

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

6

Mode of study

Not applicable.

Guarantor

prof. Ing. Kamil Vrba, CSc.

Department

Department of Telecommunications (UTKO)

Learning outcomes of the course unit

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.

Prerequisites

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

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 write a single project/assignment during the course.

Assesment methods and criteria linked to learning outcomes

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.

Course curriculum

1. Design of signal transmission lines.
2. Power supply source design and power distribution.
3. Connection and distribution of ground potential.
4. Parasitic phenomena and their suppression.
5. Shielding of electric and magnetic fields, equipotential shielding.
6. Selection of components and application principles.
6.1 Passive elements.
6.2 Operational amplifiers.
6.3 Comparators.
6.4 Analog-to-digital and digital-to-analog converters.
6.5 TTL digital circuits.
6.6 CMOS digital circuits.
7. Mechanical design.
7.1 Control and indicator elements and their lay-out
7.2 Types of instrument cases
7.3 Resistance of equipment to various environments
7.4 Heat removal from components and from instrument cases
7.5 thermal stabilization (thermostats)
8. Safety requirements for the design.
9. Debugging of devices.
9.1 Searching for faults in analog circuits
9.2 Searching for faults in digital circuits

Work placements

Not applicable.

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.

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

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.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

ARCHAMBEAUTT, B.R.: PCB Design for Real-World EMI Control. Kluwer Academic Publishers, 2002
Buchanan J.E.: BiCMOS/CMOS system design. McGraw-Hill, New York 1998
FAIRCHILD: Analog - mixed signal, interface, logic, non-voltatile memory, power products. Fairchild Semiconductors, www.fairchildsemi.com
Ginsberg G. L.: Printed circuits design. McGraw-Hill, New York 1999
HALL, S.H.; HECK, H.L.: High-Speed Digital Designs. Wiley, 2009
LINEAR TECHNOLOGY: Linear Applications Handbook. Linear Technology, Milpitas 1999
NATIONAL SEMICONDUCTOR: National Analog and Interface Products Databook. National Semiconductor, Santa Clara 1999
NIKNEJAD, A.M.: Electromagnetics for High-Speed Analog and Digital Communication Circuits. Cambridge, 2007

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EECC Bc. Bachelor's

    branch B-TLI , 3 year of study, summer semester, elective specialised
    branch B-EST , 2 year of study, summer semester, elective interdisciplinary
    branch B-AMT , 3 year of study, summer semester, elective interdisciplinary

  • Programme AUDIO-J Bachelor's

    branch J-AUD , 3 year of study, summer semester, elective interdisciplinary

  • Programme EEKR-CZV lifelong learning

    branch EE-FLE , 1 year of study, summer semester, elective specialised

Type of course unit

 

Lecture

39 hod., optionally

Teacher / Lecturer

prof. Ing. Kamil Vrba, CSc.

Syllabus

Design of signal lines: symmetrical and non-symmetrical lines, properties of signal lines, execution of connections, printed circuits and their properties, optical lines
Supply sources: mains supply, mains switches, transformers, means of interference suppression (suppression capacitors, suppression chokes, suppression elements)
Supply voltage distribution: supply distribution in instrument housing and on printed circuit boards, distribution in the ground, galvanic separation of systems (impulse tranformers, optrons)
Parasitic events and their suppression: coupling in input and outtput circuits, coupling on line resistances, parasitic capacitances and inductances, transient resistances, thermoelectric voltage, overvoltage on inductive load
Signal transmission over long lines: reflections in the lines, crosstalk, charging and discharging the lines
Electric and magnetic field screening: electric field screening of systems and lines, magnetic field screening of systems and lines
Equipotential guarding: insulation ring guarding, teflon support point, examples of active insulation of critical points
Selection of discrete components and application recommendation: resistors, potentiometers and potentiometric trimmers, capacotors and capacitive trimmers, inductors, diodes, transistors (bipolar, unipolar; power, HF)
Application recommendation for analog and digital integrated circuits: operational and transimpedance amplifiers, analog multiplexersand demultiplexers, comparators and timers, D/A and A/D converters, digital integrated circuits, microprocessors
Mechanics design: regulation and control elements and their lay-out, communication and indication elements, lay-out of regulation and communication elements on the front panel of the instrument, graphic and technical aspects of the mechanical part of design, design of instrument housing
Mechanical resistance of devices: resistance to shocks, vibration, moisture, water; abstraction of heat from the device, cooling elements, temperature stabilization (thermostatic control)
Connection of conductors and components: technology of printed circuit production, soldered connections, wire-wrap connections, cut-in connections; technology of surface assembly
Safety requirements: fundamental requirements, types of instrument classes, work environment, danger-to-touch protection, insulation requirements, surface paths and distances, movable lead-in wires

Laboratory exercise

26 hod., compulsory

Teacher / Lecturer

Ing. Pavel Hanák, Ph.D.

Syllabus

Systems for PCB, StationMentor Graphics CAM systems, their structure and control.
Principles of board design, assembly technologies used, effect of parasitic events on the board, supply distribution and blocking.
Librarian, Package, and Layout modules: defining the geometry elements, defining the board and package, board design, autorouters, adjustment possibilities.
Generating output data and processing them - data export and import.
Setting up the directory and paths, production of projects, relation to other modules, work in the network.
Connecting the system to the respective technological facilities.
Working on individual project.