Course: Electrotechnic Circuits

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Course title Electrotechnic Circuits
Course code KEF/ELOA
Organizational form of instruction Lecture
Level of course Master
Year of study not specified
Semester Winter
Number of ECTS credits 3
Language of instruction Czech
Status of course Compulsory-optional
Form of instruction Face-to-face
Work placements This is not an internship
Recommended optional programme components None
  • Vůjtek Milan, Mgr. Ph.D.
Course content
Basic terms and definitions of electric circuits - classification of electric circuits, circuit quantities, elements of electrical circuits and their properties in circuits of direct current and in circuits with steady harmonic currents <li> Methods of solution of electrical circuits with steady direct currents - methods of sequential simplification, solutions by Kirchhoffov laws, method of loop currents, method of voltage nodes, transfiguration of circuits, theorems on standby supplies, method of transposition of power supplies, use of superposition principle, power adjustment of electric load to power supply <li> Linear electrical circuits with steady harmonic electric currents - properties of basic circuit elements due to harmonic generation, symbolical representation of harmonic quantities, arithmetic operations with phasors, analysis of electrical circuits, use of method of loop currents for solution of electrical circuits with harmonic voltage supplies, power and power adjustment, resonance, three-phase systems <li> Circuits with variable parameters generated by harmonic electric currents - RL and RC circuits with variable parameters, phasor lines of impedances and admittances in circuits with variable parameters, circuits generated by power supply with harmonic voltage with variable frequency, frequency characteristics of simple one-port network <li> Introduction to analysis of electrical linear one-port networks - equation of one-port networks (admittance, impedance and cascade equations), basic types of one-port networks, connection of one-port networks, transfer properties of one-port networks, filters and their properties <li> Transient phenomena in electrical circuits - transient phenomena in electrical circuits after switching off and switching on of the power supply with DC voltage, circuits with one energy supply, circuits with two energy supplies, transient phenomenon induced by change of circuit parameters, transient phenomena in circuits with harmonic voltage - connection of AC power supply to unloaded transformer and to RLC circuit, application of integral transforms for solutions of transient phenomena, Laplace transform <li> Basic theory of electrical circuits with distributed parameters - basic parameters of two-wire electrical cables, derivation of telegraphic equations of cables, propagation of voltage and current wave through cables, secondary parameters of cables, coefficient of reflection at the end of the cables, wave impedance, zero-loss cables, transfer properties of cables, distortionless cables </ul>

Learning activities and teaching methods
  • Preparation for the Exam - 5 hours per semester
Learning outcomes
To obtain basic knowledge about methods of analysis of circuits.
Knowledge Define the main ideas and conceptions of the subject, describe the main approaches of the studied topics, recall the theoretical knowledge for solution of model problems.

Assessment methods and criteria

Knowledge within the scope of the course topics (examination)
Recommended literature
  • Smékal, J.: Elektrotechnika. VUT Brno, 1991 (skriptum)..
  • L. Gajdošík. (2011). Metody analýzy lineárních obvodů 1, 2.

Study plans that include the course
Faculty Study plan (Version) Branch of study Category Recommended year of study Recommended semester