Électronique et automatique
223 documents à télécharger gratuitement
Cours, examens, TD, TP et exercices de électronique et automatique. Thèmes couverts : automatisme, asservissement, microcontrôleur, Arduino, VHDL, signal.
Ce document présente les concepts et techniques du streaming d’audio et de vidéo, ainsi que les applications multimédia. Il aborde les différents types de streaming, y compris le streaming stocké et en direct, et les exigences de réactivité et de bande passante. L'accent est mis sur les protocoles tels que RTSP et SIP, et les caractéristiques essentielles des applications de streaming.
Ce document traite des amplificateurs sélectifs, en expliquant leur fonctionnement et leur application dans le domaine des fréquences bien déterminées. Il aborde les concepts d'amplification sélective, de bande passante et de facteur de mérite, avec des schémas et des exemples. Les amplificateurs à circuit intégré et les différences entre les hautes et basses fréquences sont également discutés.
Cette document est un cours sur les systèmes asservis linéaires et leur analyse temporelle. Il aborde les principaux critères de performance, tels que la stabilité, la rapidité et la précision. Des méthodes comme le critère de Routh sont étudiées pour évaluer la stabilité des systèmes.
This document presents an exam on the regulation system of aquarium temperature using operational amplifiers and logical circuits. It includes theoretical questions and practical calculations related to electronic circuitry intended for temperature regulation. The exam emphasizes the understanding of circuit behaviors and requires the proper application of electronic principles.
This document outlines the exam for the Analog Electronics course, detailing its structure, rules, and specific topics covered. The exam is divided into two independent parts focused on linear and non-linear functions of operational amplifiers. Students are required to provide expressions and analyze circuits based on given parameters and conditions.
This document discusses the development and principles of Phase Locked Loops (PLL) in the context of telecommunications. It details the components involved in a PLL, such as phase comparators, low-pass filters, and voltage-controlled oscillators. The document also explores the historical context and technological advancements in PLL implementations.
This document serves as a guide for analog electronics directed studies for students in the electrical engineering department. It includes exercises primarily focused on operational amplifiers and provides a collection of supervised assignments and exams. The material is intended to support students' personal work with guidance from instructors.
Ce document traite des régulateurs de tension, en décrivant leur utilité et leur fonctionnement. Il aborde les différentes familles de régulateurs ainsi que les critères de choix pour un modèle spécifique. Les paramètres techniques liés aux régulateurs et leur importance dans les spécifications sont également discutés.
Ce cours traite des systèmes d'ordre élevé et de leur étude harmonique. Les objectifs incluent la connaissance des signaux et des systèmes asservis, ainsi que la maîtrise des outils de transformation des signaux. Le contenu comporte des critères géométriques pour l'étude de la stabilité des systèmes.
This document provides an overview of stepper motors, their operation, and their characteristics. It outlines different types of stepper motors, including permanent magnet, variable reluctance, and hybrid motors. The document also discusses the principles of position control in stepper motors and the nature of their power supply.
This document contains an exam on the topic of analog multiple feedback systems, comprising problems related to transfer functions, oscillators, and integrators. The exam is structured into several parts, each dealing with different aspects of electronic components and their interactions. It is directed towards students in the Electrical Engineering department and includes presentation and writing quality criteria for grading.
Ce document traite des concepts fondamentaux liés aux transistors bipolaires en régime variable, notamment l'amplification. Les étudiants apprendront à connaître les composants électroniques, évaluer leurs caractéristiques et à les exploiter dans des montages pratiques. L'accent est mis sur les paramètres hybrides du transistor et leur impact sur les performances des circuits.
This course introduces the concepts of electronic amplifiers focusing on classes A, B, AB, and C. It explains how to polarize the base of a transistor and the implications of each class for audio applications. The lesson also includes practical examples involving resistor calculations for biasing transistors.
This chapter covers the various types of measurement devices, focusing on both analog and digital devices. It explores the characteristics of these devices, how they operate, and classification based on their physical principles. The chapter aims to equip learners with knowledge about measurement technologies for practical applications.
Cette leçon introduit l'électronique en partant des bases pour concevoir et construire un émetteur. Elle se compose de théories simplifiées sur les oscillateurs HF et de pratiques permettant de monter un émetteur FM. Les étudiants acquerront les compétences nécessaires pour émettre des signaux de manière concrète.
This document outlines the methodology for implementing a series chopper and a DC motor control system. It describes the objectives, materials used, and detailed procedures for executing experiments related to chopper circuits and motor speed control. Experimental results need to be visualized and analyzed using oscilloscopes and other measuring tools.
This lesson explains the operation of thyristors and triacs, comparing them to relays for better understanding. It discusses their functionality in electronic circuits, their differences from relays, and their significance in fast switching applications. Critical characteristics and connections are also outlined.
This document covers the concept of transistor biasing, including its importance in determining the operating point of the transistor within its linear characteristics. It explores various biasing techniques, their advantages and disadvantages, and practical implementation details for achieving thermal stability. The content includes theoretical foundations and specific calculations related to transistor operation.
This lesson introduces analog-to-digital converters, discussing the nature of electronic signals and Shannon's sampling theorem. It also reviews the main types of converters and their performance. The document emphasizes the importance of understanding these concepts in the context of signal processing and physics.
Ce cours traite des schémas fonctionnels des systèmes continus linéaires invariants, en mettant l'accent sur la transformation de ces schémas pour différentes structures. Les élèves apprendront à manipuler les techniques de représentation des systèmes et à maîtriser les outils de transformation des signaux. Le cours intègre également des exemples pratiques pour illustrer chaque concept.
This document covers the fundamentals of junction diodes, including their construction, operation, and characteristics. It discusses the concepts of PN junctions, both unbiased and biased, and details the current dynamics through different polarization methods. The document also includes theoretical content and evaluation methods for the course.
The document explores the theoretical and practical analysis of a fully-controlled thyristor bridge rectifier, discussing its operation principles, output voltage computation, and associated power consumption metrics. It further extends to enhancing power factor by introducing a freewheeling diode and analyzing its effects on the output and input characteristics of the rectifier. Numerical examples illustrate key parameters such as output voltage, current, apparent power, and power factor. The document concludes with considerations on the reversibility of the rectifier for inverter operations.
The document introduces Grafcet as a graphical language for sequential automation, describing its components such as steps, transitions, and connections. It covers operational rules, including step activation, transition conditions, and evolution dynamics. Practical examples such as a chariot system and an agro-food mixing system illustrate its implementation. Specific configurations like divergence, convergence (AND/OR), and correct structural practices are detailed to guide implementation.
This document discusses the historical evolution, architecture, and functionality of Programmable Logic Controllers (PLCs), also referred to as 'Automates Programmables Industriels (API).' It details their transition from systems using electromagnetic relays to microprocessor-based programmable systems highlighting cost efficiency and adaptability. The different types of system components like actionneurs, pré-actionneurs, and capteurs are explained, alongside their operational and structural principles. The document outlines the goal of automation: increasing productivity, improving qualit...























