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.
This document is a practical guide for creating programmable logic circuits using VHDL code and simulation tools like ModelSim and ISE 9.1 by Xilinx. It details the design and simulation process of half-adders and full-adders, illustrating the creation of circuits through truth tables, logical expressions, and VHDL descriptions. The document provides step-by-step instructions for simulating designs in ModelSim, including waveform viewing and signal forcing. Additionally, advanced topics such as the 4-bit full-adder, D flip-flops sensitive to clock edges, and shift registers are addressed, w...
This document provides a concise guide on using Proteus's ISIS platform for electronic circuit design. It outlines the interface, including toolbars for editing, selecting, and orienting components. The guide then explores essential actions such as opening documents, adding and modifying components, connecting elements, managing layouts, and performing simulations. A section dedicated to advanced features emphasizes routing preparation, circuit verification, and graphical data visualization. The manual is tailored for beginners and intermediate users to efficiently design and test electroni...
This document provides an overview of ECG signals and their characteristics. It discusses the generation, normal waveform components, and spectral content of ECG signals. Additionally, it highlights the presence of common artifacts that affect ECG recordings.
This document discusses the Discrete Fourier Transform (DFT) and the Fast Fourier Transform (FFT), detailing their definitions, properties, and algorithms. It explores the process of discretizing functions for computational purposes and provides insights into different types of windows used in signal processing. The document also includes exercises and problems to reinforce learning.
This document discusses the principles and applications of digital filtering. It explores the synthesis of Infinite Impulse Response (IIR) and Finite Impulse Response (FIR) filters, including their representation and specification. Examples and MATLAB programming related to these concepts are also provided.
This course focuses on the principles and applications of digital signal processing techniques. It covers the differences between analog and digital processing, the architecture of digital signal processors (DSPs), and various filtering techniques. Practical applications and real-time constraints in embedded systems are also discussed.
This document discusses the inverse problem of EEG and presents different regularization techniques, including Tikhonov regularization and TV-L1 regularization. It outlines optimization problems associated with these methods and details the algorithms used for solving them. The goal is to understand how varying regularization parameters affects the solution.
This document explores the fundamentals and applications of sequential logic, focusing on flip-flops and counters. It covers different types of flip-flops (RS, D, JK, and JKMS) and their functionalities, particularly their use as memory elements in digital systems. The document provides an in-depth explanation of asynchronous and synchronous counters, including their construction for modulos 8, 10, and 16, alongside their respective advantages and limitations. Additionally, it addresses the principles of decrement counters and presents practical realizations for various modulos using JK fli...
The document covers sequential logic systems, particularly focusing on counters and decounters, their functionalities, types (asynchronous and synchronous), and integrated technologies. It details methodologies for designing various modulo counters/decompters, providing theoretical principles, application methods, and circuit diagrams. Practical use cases demonstrate the cascading of counters for enhanced counting capacity, using specific integrated circuits like 74192 and 4029 TTL for decimal and binary counting.
This document introduces the core concepts of fundamental digital electronics components, including flip-flop circuits, registers, counters, and memory systems. It covers asynchronous and synchronous flip-flops, detailing their behavior in various configurations such as RS, JK, and D flip-flops. Sequential logic devices like parallel and shift registers, counter designs, and memory circuits are also discussed with focus on their operational principles, timing constraints, and design flexibility. The document concludes with implementation details for control logic in finite state machines an...
This document analyzes the functionalities and interactions of a simplified bank ATM system. It identifies key actors such as cardholders, bank clients, and maintenance operators and delineates their roles in various use cases. UML diagrams are employed to depict static and dynamic structures with refined relationships like inclusion, extension, and specialization. Core system behaviors, including authentication and transaction scenarios, are described textually and supported with alternative and error pathways for robust modeling.
The document explores the fundamental concepts of digital memory circuits, focusing on different types of flip-flops and registers. Starting with basic bistable elements, it delves into RS flip-flops, including both NAND and NOR types, highlighting their function and limitations. Latch circuits, their transparency issues, and the evolution to edge-triggered D flip-flops for synchronizing data are examined. The document concludes with advanced discussions on master-slave flip-flops and their role in designing effective registers for sequential circuit operations.
This document introduces the concept of sequential logic, emphasizing the dependency of the output on the current inputs and its previous state. It details various types of latches and flip-flops, such as RS, RSH, D, JK, and their synchronization with clock signals. The document outlines the functionality and truth tables for each type, focusing on their dynamic operation based on input states and clock edges. Finally, it describes the initialization process for flip-flops with asynchronous preset and clear inputs to establish predefined output states.
The document introduces sequential logic systems, emphasizing their ability to account for past conditions to implement memory-based devices. It explores bistable elements like RS latches, D latches, flip-flops, and JK flip-flops, detailing their operating principles, truth tables, normalized diagrams, and associated chronograms. Additionally, the document discusses binary and decimal counters, explaining synchronous and asynchronous modes to illustrate key counting operations and applications.
This thesis details the design and implementation of an electronic card utilizing a microcontroller and an LCD display for the detection and visualization of faults in two HTA/BT transformers. The project aims to improve the existing fault detection methodology used by SITEX, which was found to be complicated and imprecise. The final outcome includes an enhanced graphical interface for remote control and monitoring of the transformers.
L'examen porte sur les concepts de transformation de Fourier, densité spectrale de puissance, et codage NRZ. Les étudiants doivent résoudre des exercices sur les signaux rectangulaires et modulés en amplitude. Une partie est dédiée à un problème de récepteur dans un système de transmission binaire.
This document explores the technologies of various memory systems utilized within embedded systems. It examines memory types such as SRAM, DRAM, FRAM, MRAM, PROM, EPROM, EEPROM, and Flash memory through descriptions and examples. Methodologies for memory organization and advancements in storage technologies are highlighted. Findings emphasize the significance of optimizing memory capabilities for embedded systems and innovations like NVRAM and USB flash drives.
This document serves as a practical guide to studying and implementing automated systems using Programmable Logic Controllers (PLCs). Four main projects address various automation scenarios: machining head control, parts transfer between conveyors, sheet metal cutting, and an automated flattening machine. Each project details the functional methodology, including operational workflows (GRAFCET), power circuits, and control programming in Ladder logic. Exercises require students to implement and complete control schematics, connections, and programming for realistic industrial setups.
This document introduces GRAFCET (GRAphe Fonctionnel de Commande Etape/Transition), a graphical modeling tool for describing the behavior of logical systems, particularly for programmable industrial automata. It elaborates on its core principles, including steps with actions, transitions with receptivities, and oriented links, along with the standardized rules and conventions defined by NF C 03-190 and CEI 848. Practical applications for GRAFCET are demonstrated with examples like controlling a punching machine and a multi-step manufacturing system, using macro-steps and sequence management...
This document provides a comprehensive overview of industrial automation systems. It covers the structure and components of automated systems, such as programmable logic controllers (PLCs), sensors, and actuators, detailing their functionalities and types. The text explains the GRAFCET standard for automated sequence representation and describes various programming methodologies for PLCs, including ladder logic. Practical examples and directed exercises are included to illustrate technical concepts and their implementation in real-world scenarios.
This document presents exercises to prepare for the INF3610 embedded systems final exam, focusing on pipeline architecture, instruction scheduling, and superscalar RISC processors. It explores pipeline hazards, instruction dependencies, and advanced scheduling techniques in scenarios such as loop unrolling and superscalar execution. Additionally, it provides tasks on OPB protocol analysis, transaction models, embedded processors, DSP architecture, and FIR filter implementation, emphasizing optimization and system performance.
This document explores the fundamentals of digital image encoding and storage. It includes exercises that discuss the differences between analog and digital signals, with a focus on binary coding and bit-based representations of grayscale or color images. The document uses the example of the Game Boy's 160x144-pixel display, explaining how pixel grids and bit encoding translate to image resolution and storage requirements. Additionally, it extends to explain RGB coding for colors and how newer Game Boy models improve image quality by increasing resolution.
This document presents an in-depth analysis of embedded systems, exploring their architecture, functionality, and applications. It likely investigates the integration of hardware and software components to create efficient systems. Methodologies for optimizing performance and reliability in industrial and academic contexts are discussed. The findings include insights into the development and deployment processes in real-world scenarios.
This document discusses the fundamentals of embedded systems, detailing their architecture, operation, and application in various industries. It elaborates on hardware and software integration within embedded systems to optimize functionality and efficiency. Relevant methodologies and theoretical approaches for development and testing are examined. Key examples and applications illustrate the impact of these systems on technology advancement.