Basics of Electricity and Electronics

Materials, physics and mathematics.

Theoretical classes used expositive techniques, as powerpoint support, to developing skills through lectures with discussion.

Practical classes: carrying out practical work to developing and acquire practical skills in electrical circuits, measuring quantities (current/voltage), using measuring devices; analysis of experimental results and identification of the main laws applied to the resolution of electrical circuits; methodologies for solving electrical circuits of varying complexity, without/using systems of linear equations/matrix formulation and their resolution with the support of scientific calculators or other appropriate tools.

Goals

This unit aims introducing students to the fundamentals of electricity and electronics giving them the competences to the analysis of DC and AC electrical and electronic circuits. In this unit students will also focus on the techniques (and devices) used to the measurement of main electrical quantities (current, voltage and power). In the electronics field, the unit will focus on diodes, bipolar transistors and field effect transistors.

Skills

Knowledge and use of main electrical measurement and test devices.

Understanding, projecting, operating and maintaining electrical and electronic devices.

Introduction to DC current (electrical charges, electrical fields, voltages, currents and ohmic elements, sources).

Ohm’s law.

Kirchhoff Laws.

Voltage and current dividers.

Large circuits solving technics.

Superposition principle.

Thévenin and Norton equivalentes.

Inductances and capacitances.

Alternating current (AC).

Active, reactive and apparent powers.

Three-phased systems: symmetrical voltages, currents and power.

Power factor correction techniques in mono and three-phased systems.

Semiconductors – power bands; mobility and conductivity. Notion of dopant, acceptors and donors.

Semiconductor diode – PN junction and its characteristics; principle of operation, characteristic curves and applications. Rectifier diode, Schottky, Zener, LED and photodiode. Applications: limiting circuitry, single-phase rectifiers: half-wave, full-wave and bridge, capacitive filtering.

Bipolar Junction Transistors (BJT) – Internal constitution and principle of operation. Characteristic curves and operating regions: off, active and saturation. Polarization and stability of the operating point. Application circuits.

Field Effect Transistors (FET) – Types of FETs: Junction and MOS and its internal constitution. Characteristic curves and operating regions. Polarization and stability. Application circuits. Power Interfaces. Other applications.

NAO

MATTHEW SADIKU, CHARLES ALEXANDER, SARHAN MUSA, “Applied Circuit Analysis”, Science Engineering & Math; McGraw-Hill Higher.

Education, 1 edition (1 July 2012). ISBN-13: 978-0071317825.

WILLIAM HAYT, JACK KEMMERLY, STEVEN DURBIN, “Engineering Circuit Analysis”, eighth edition, McGraw-Hill Higher Education 2012. ISBN: 9780071317061.

A. H. ROBBINS AND W.C. MILLER, “Circuits Analysis: Theory and Practice”, 3rd Edition, Clifton Park, NY, Thomson, Delmar Learning, 2004.

EDMINISTER, J. A. “Teoria e problemas de Circuitos Eléctricos”, Bookman Companhia Ed, 2005, ISBN 8536305517, 9788536305516.

Robert Boylestad e Louis Nashelsky, Dispositivos Electrónicos e Teoria dos Circuitos, Quinta Edição, Prentice-Hall do Brasil.

Stanley G. Burns e Paul. R. Bond, Principles of Electronics Circuits, Second Edition, PWS Publishing Company.

Malvino, Princípios de Electrónica, Vol. 1 e 2, Sexta Edição, McGraw-Hill.

Supporting texts (by course unit teachers).