ELECTRONIC CIRCUITS AND MEASUREMENTS

This course is one of the compulsory educational activities of the Degree Course in Physical Engineering. It provides the knowledge to understand and analyze the static and dynamic behaviour of RLC circuits , the physics and the operation of the main solid-state electronic devices (mainly diodes and MOSFETs) and their use for the realization of analog and digital electronic circuits and components (amplifiers, logic gates, memories, etc.). The first part of the course deals with the understanding and analysis of linear circuits (linear circuits, frequency analysis, Bode diagram) and with the concepts of semiconductor physics of diodes and transistors and their modeling. The second part of the course focuses on the analysis of different elementary electronic circuits and different configurations of operational amplifiers. The student will be provided with the tools to analyze the main characteristics of some fundamental circuit architectures, such as gain, transfer function, stability and frequency band. The class lectures are complemented by laboratory activities during which the students will be able to simulate and experimentally measure the main parameters of elementary circuits using the appropriate instrumentation.

Knowledge and understanding
• Understand the relationships between different scientific disciplines for the study of complex phenomena and for the development of new materials, devices and systems;
• Understand the importance of science and technology of modern electronic devices;
• Knowledge of the physical functioning and of the models of the main elementary electronic devices;
• Knowledge of the configurations and fundamental characteristics of operational amplifiers and their use in feedback systems;
Ability to apply knowledge and understanding
• Analysis of an electronic circuit starting from the identification of the operating parameters of the individual components, maintaining awareness of the approximations used;
• Calculation of the transfer function and estimation of the stability of a feedback system;

• Verification of the analysis and sizing of the circuits through the use of a simulator;
Autonomy of judgment
• Knowing how to evaluate the logical consistency of the results to which the application of learned knowledge leads, both in theory and in the case of experimental data;
• Knowing how to recognize any errors through a critical analysis of the applied method.
Communication skills
• Knowing how to communicate the knowledge learned and the result of their application using appropriate terminology, both in oral and written fields;
• Knowing how to interact with the teacher and with course colleagues in a respectful and constructive way.
Learning ability
• Knowing how to take notes, selecting and collecting information according to their importance and priority;
• Knowing how to be sufficiently autonomous in the collection of data and information relevant to the problem investigated.

Advanced knowledge of mathematics (Analysis 1 and Analysis 2), and the course of Fundamentals of Telecommunications and Mathematical Methods for Physics and Engineering.

Basic electrical circuits: Linear resistive circuits, Analysis of resistive circuits, Dynamic circuits of order 1, General dynamic circuits, Sinusoidal regime, Bode diagrams;
Electronic devices: Crystal structure, Band diagram, Shockley model, Generation and recombination, stop level, doped semiconductors, semiconductor transport, PN junction, MOS system, MOSFET transistors;
Amplifiers and their applications: Generalities on amplifiers, Single stage MOSFET amplifier, Polarization, small signal model, operational amplifiers. Analysis of basic topologies and feedback configurations. Frequency study of the characteristics and stability of feedback amplifiers, Circuit effects of the main non-idealities of operational amplifiers (bias currents, offset voltage, input and output resistances, etc.). Linear applications (adders, active filters, derivative integrators, etc.).

• Sedra, Smith: Microelectronic Circuits, 6th Ed. Oxford University Press,
• G. Ghione Dispositivi per la Microelettronica McGraw-Hill 1998
• S. M. Sze, Dispositivi a semiconduttore, Hoepli, 1991

The achievement of the teaching objectives is assessed through participation in the activities and exercises assigned during the course and a final written exam. The final written exam consists of problems similar to those carried out in class during group work. The use of notes, books and other teaching material is not allowed during the assignment. A facsimile of the assignment will be made available. In addition tot he written exam an oral exam will be also possible.

Lectures and exercises. Laboratory with computer simulator and small experiments

Italian

the course is in italian

written and oral

This subject deals with topics related to the macro-area "Circular economy, innovation, work" and contributes to the achievement of one or more goals of U. N. Agenda for Sustainable Development