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# Circuit Analysis

 Code 15753 Year 1 Semester S2 ECTS Credits 6 Workload PL(15H)/T(30H)/TP(15H) Scientific area Electrotechnics and Electronics Entry requirements Knowledge from mathematical analysis and matricial calculus. Mode of delivery Face-to-face. Work placements N/A. Learning outcomes To acquire knowledge on the analysis of resistive, capacitive and inductive circuits, with DC and AC sources, first and second order circuits and their natural response, techniques for linear circuit analysis and simplification techniques, Kircchoff's Laws, node current and mesh voltage analysis, equivalent circuits and the operational amplifier.Knowledge on the Kirchhoff and Ohm laws, independent and dependent sources, equivalent circuits, maximum power transfer, and homogeneity and superposition principles. To learn techniques for the analysis of circuits with operational amplifiers, OpAam, natural and complete response of first and second order circuits in the time domain. To learn the basis of DC and AC circuit analysis. To know and apply linear circuit analysis and simplification techniques, node current and mesh voltage analysis. To design simple circuits with various applications. To know how to use the oscilloscope in the laboratory. Syllabus 1. Electric circuit variables, units and prefixes;2. Experimental laws and simple circutis, including the Kirchhoff laws, characterisitics of independent and dependent sources, Ohm law, dependence of the resistivity on the temperature, and voltage and current division.3. Circuit analysis techniques, including node current and mesh voltage analysis, as well as linearity and superpositions issues;4. Circuits simplification techniques and equivalent circuits, source transformation, and Thévenin and Norton equivalent circuits (including their applications to AC circuits); 5. Basic concepts of the operational amplifier and signal analysis in electronics. Analysis of circuits with operational amplifiers.6. Energy storage elements (capacitor and inductor);7. Natural and complete response of first and second order circuits;8. Sinusoidal steady-state analysis, including the notion of impedance and the concepts associated with the power. Main Bibliography Fernando J. Velez, Paulo Oliveira, Luis M. Borges e Ana Rodrigues, Curso de Electrónica Industrial, ETEP – LIDEL, Fev. 2009 (ISBN: 978-972-8480-22-6).Richard C. Dorf & James A. Svoboda, Introduction to Electric Circuits, John Wiley & Sons, 7th edition.M. N. Sadiku & C. K. Alexander, Fundamentals of electric circuits, McGraw-Hill Higher Education, 5th edition, 2013.Questionaries and supporting material for the laboratory classes. Video on the introduction to the laboratory.Written exercises (for homework).Slides (powerpoint files).William H. Hayt Jr. e Jack E. Kemerly, Análise de Circuitos em Engenharia, McGraw-Hill.Shlomo Karni, Applied Circuit Analysis, John Wiley & Sons, New York, NY, USA, 1988.J. David Irwin & R. Mark Nelms, Basic Engineering Circuit Analysis, John Wiley & Sons, International Student Edition, 9th edition. Teaching Methodologies and Assessment Criteria The theoretical contact times (2 h per week) aim at acquiring theorethical knowledge associated with the syllabus of the curricular unit. The theorethic-practical times (1 h per week) aim at acquiring practical knowledge, by solving problems and practical exercises. In the laboratory classes (1 h per week), students develop practical laboratory tasks.Student evaluation is according the following proposal:25% Lab.+5 % Participation(with mini-test)+ 15 % TP Evaluation Sheets +{[(27.5% Test-1)+(27.5% Test-2 (>8.0))] or 55% Exam}Minimum mark in the laboratory: 9.5.Minimum mark in the 2nd test: 8.0Participation - Participation in at least 50 % of the classes provides access to an oral examination (partial or global) to the students that wish to do it and obtain a mark >=8.0 at least in one of the two tests. Language Portuguese. Tutorial support is available in English.

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Electromechanical Engineering
Last updated on: 2024-03-18

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