Electronics II
Code
10933
Academic unit
Faculdade de Ciências e Tecnologia
Department
Departamento de Engenharia Electrotécnica
Credits
6.0
Teacher in charge
Luís Augusto Bica Gomes de Oliveira
Weekly hours
5
Total hours
68
Teaching language
Português
Objectives
The course aims explain the operation complex electronic circuits: amplifiers, oscillators, analog filters, and signal converters. It is intended that the students learns how to use feedback in electronic circuits to design amplifiers, oscillators, and filters.
The student will develop the ability to solve problems, work in a team and autonomously. Students also will learn how to improve their ability to manage the available time. Special attention is given to the ability of written and oral presentation of the work.
Subject matter
1 - Frequency response: s-domain circuit analysis; Bode diagrams of amplitude and phase. 2 - Feedback theory: General structure of the feedback; properties of negative feedback; basic topologies of feedback (series-series, series-parallel, parallel-serial, parallel-parallel); closed loop gain; Effect of the poles in a feedback amplifier. Study of the stability based on Bode diagrams, definition of phase margin and gain; compensation of amplifiers. 3 - Oscillators and signal generators: Principle of oscillators, Barkhausen criteria; sinusoidal oscillator circuits, non-linear oscillators: multivibrators. 4 - Analog filters: Chebyshev and Butterworth approximations; biquadratic discrete sections (Salen and Key, Rauch, etc). 4 – Signal Converters: analog-to-digital and digital-to-analog converters; sample and hold circuits.
Bibliography
- M. M. SILVA, Introdução aos Circuitos Eléctricos e Electrónicos (2ª edição), F. C. Gulbenkian, Dezembro 2001.
- M. M. SILVA, Circuitos com Transístores Bipolares e MOS , F. C. Gulbenkian, Janeiro 2003.
- Sedra/Smith, Microelectronic Circuits, Oxford University Press.
- B. Razavi, Fundamentals of Microelectronics, Wiley.