This repository contains lab materials for the IST-SElec (Electronic Systems) course.

This project focuses on studying the consequences of negative feedback in amplifiers, exploring configurations with and without feedback to illuminate the impacts on system behavior.

• Understand the role of feedback in electronic systems and its implications on system performance.
• Analyze amplifier configurations to observe the effects of feedback mechanisms.
• Use LTspice® for simulation and MATLAB® for data analysis.

• LTspice® for circuit simulation.
• MATLAB® for data processing and simulation analysis.

• Dessensitization of gain due to feedback.
• Reduction of non-linear distortion and noise.
• Control over input and output resistances.
• Bandwidth enhancement of amplifiers.

Analyze a proximity detection system based on the principles similar to the Park-Aid circuit, which aids in vehicle parking by detecting nearby obstacles using sensors.

• Dissect and study the individual components of the proximity detection circuit, including IR emitter and receiver, band-pass filter, rectifier with filtering, and proximity indicator.
• Evaluate the circuit's performance and functionality as a whole.

• LTspice® for circuit simulation.
• MATLAB® for data processing and simulation analysis.

• Oscillators and their applications in generating periodic signals.
• Analog filters, including active and passive filters for signal processing.

The μOscilloscope project aims to design a small oscilloscope as an embedded system for IoT solutions development. The project encompasses understanding the hardware circuit, implementing oscilloscope software, debugging, optimizing, and calibrating the system.

• Master the underlying hardware circuitry for the project.
• Develop and implement the μOscilloscope software.
• Perform debugging and software optimization.
• Carry out calibration of the μOscilloscope.

• Software implementation compatible with Python 3 and MicroPython®, optimized for microcontrollers.
• MATLAB® for data processing and simulation analysis.

• Implementation and calibration of oscilloscope software.
• Signal processing algorithms and concepts.

All diagrams in this repository were created using draw.io, with the use of the ECE library provided by NicklasVraa/Draw-io-ECE. This tool and library facilitated the detailed depiction of electronic components and systems while offering a user-friendly and time-efficient design experience.

This work is licensed under a Creative Commons Attribution Non Commercial Share Alike 4.0 International.

• João Gonçalves - sqrt(-1)
• Teresa Nogueira - 13A!

If you have suggestions or find any issues, please open an issue or submit a pull request.