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Introduction to the University Program

The University of Genoa offers a comprehensive program in Electrical Engineering, providing students with a solid foundation in the principles of electrical circuits and systems.

Program Overview

The program, titled "Teoria dei Circuiti e Laboratorio Elettrico" (Theory of Electrical Circuits and Electrical Laboratory), is designed to equip students with a deep understanding of electrical circuits, including circuit analysis, electrical systems, and laboratory experiments.

Program Details

• Code: 8716 (L-9)
• Academic Year: 2024/2025
• CFU: 8
• Sector: ING-IND/31
• Language: Italian (English upon request)
• Location: Genoa
• Period: 2nd Semester

Educational Objectives

The primary objective of this program is to provide students with a thorough understanding of electrical circuits, enabling them to analyze and design simple electrical systems. Upon completion, students will be able to classify circuit problems, set up their solutions, and solve them analytically when possible.

Prerequisites

Useful knowledge for students includes mathematical analysis and calculus with complex numbers.

Teaching Methods

The program consists of theoretical lessons accompanied by applicative and numerical exercises in the classroom and laboratory exercises for a total of 8 CFU. Students with disabilities or DSA can request compensatory/dispensatory measures for the exam.

Program Content

The Circuit Model

• Current and voltage
• Difference of potential
• The electrical circuit: model hypothesis and limits of validity
• Circuit components: terminals and clamps, bipoles and multipoles, limit surfaces
• Circuits with concentrated parameters
• Sign conventions for voltages and currents
• Kirchhoff's voltage and current laws
• Linearly independent relations in Kirchhoff's laws and elementary selection techniques

Resistive Circuits

• Definitions and model hypotheses
• Resistors: linear time-invariant resistor, constitutive equation, calculation of resistance and conductance
• Series and parallel connections, voltage and current dividers
• Concept of network equivalent, formulas for resistor network equivalents in series and parallel
• Network reduction techniques
• Ladder networks
• Star-triangle and triangle-star transformation
• Theorems for resistive networks: Thevenin's theorem, Norton's theorem, calculation techniques for their equivalent networks
• Maximum power transfer theorem
• Non-ideal generators, Millman's theorem
• Superposition theorem of effects and application examples
• General techniques for solving circuits

Capacitors, Inductors, and Double Poles

• Ideal capacitor and inductor, elementary properties
• Constitutive equations, stored energy, initial conditions, state variables
• Series and parallel connections of capacitors and inductors and their equivalents
• Real components
• Double poles: definitions, identification techniques
• Coupled inductors, ideal transformer

Equations of Circuits in Sinusoidal Steady-State Regime and Their Solution

• Steady-state solution of a linear dissipative circuit with sinusoidal excitation
• Representation of sinusoidal quantities using complex numbers: phasor method
• Definitions of impedance and admittance
• Impedances and admittances of all types of linear components
• Extension of network theorems to the sinusoidal regime
• Voltage drops
• Phase shift
• Examples of solving simple linear circuits of applicative interest

Power in Sinusoidal Regime

• Instantaneous power, active power, reactive power, and apparent power
• Apparent complex power
• Tellegen's theorem for dissipative networks
• Conservation of active and reactive power
• Resonance and anti-resonance
• Concept of filter
• Elementary filters RC and RL

Laboratory Exercises

• Introduction to the theory of measurement errors and related applications

1. Realization of two simple circuits containing resistances connected in series and in parallel.
2. Voltage-current curve of a resistor: the first Ohm's law.
3. Voltage-current curve of a silicon diode.
4. RC circuits with DC power supply and related transient.
5. RC circuits in sinusoidal steady-state regime.
6. RL circuits in sinusoidal steady-state regime.

Texts/Bibliography

• M. Nervi, E. Torello: "Dispense del corso"
• Additional texts and references are provided for further consultation.

Teachers and Commissions

• Eugenia Torello
• Mario Nervi

Lessons

• The start of lessons is announced on the EasyAcademy portal.

Exams

• Exam Method: The exam consists of two partial tests taken during the course and an oral test.
• Assessment Method: The written exam verifies the preparation by checking the ability to obtain a correct solution to some application exercises; the oral exam verifies the correct understanding of some of the theoretical arguments, the correct use of specialized vocabulary, critical reasoning ability on the presented material, and the interiorization of the necessary technical skills.

Calendar of Appeals

• Dates and times for exams are listed, including written and oral tests.

Additional Information

For further information not included in the course sheet, please contact the teacher.