Felipe Andrade Allemand Borges

Felipe Andrade Allemand Borges

São José dos Campos, São Paulo, Brazil
470 followers 467 connections

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About

Computer Science and Electrical Engineering Professional with Multi-Disciplinary…

Articles by Felipe

Activity

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Experience

  • TOTVS Graphic

    TOTVS

    Sao Paulo, Brazil

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    São Paulo Area, Brazil

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    Florianópolis Area, Brazil

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    Sorocaba Area, Brazil

Education

Publications

  • Complete Development of an Battery Charger System with state-of-charge analysis

    European International Journal of Science and Technology

    Battery charging and State-Of-Charge management is one of the main relevant issues for developing mobile autonomous robots. This paper presents a complete development of an battery charger for an autonomous mobile robot and a discussion of SOC estimation models. Initially a charger prototype, based on a Half-Bridge DC-DC converter, was developed and tested. Furthermore, the MATLAB SimPowerSystems default battery model was analyzed and a limitation of the model concerning the effect of battery…

    Battery charging and State-Of-Charge management is one of the main relevant issues for developing mobile autonomous robots. This paper presents a complete development of an battery charger for an autonomous mobile robot and a discussion of SOC estimation models. Initially a charger prototype, based on a Half-Bridge DC-DC converter, was developed and tested. Furthermore, the MATLAB SimPowerSystems default battery model was analyzed and a limitation of the model concerning the effect of battery internal resistance is then discussed. Afterwards, a bench test was made by measuring charge voltage and current in a prototype board. After testing was through, it was observed that the battery model used in SimPowerSystems is not accurate due to the assumption of a constant battery internal resistance. Then, a variable resistance modification to this model was introduced and a new bench test showed satisfactory results. The variable resistance model provides a correction for both charge and discharge models for a lead acid battery, thus improving the accuracy of the autonomous robot autonomy, as well as avoiding excessive battery depth of charge, which is a limiting factor for their economic life and serviceability. Whereas such results are of limited reach in an applied research project, they mean economic scale gains for the widespread industrial lead-acid battery applications, hence a better battery model, shall allow more accurate battery serviceability, on time battery inspections and maintenance of their elements, and thus a lesser rate of disposal of lead sulphates and plastic casings into the environment, when disposing used lead-acid batteries.

    Other authors
    • Luis Carlos Mathias
    • Leonimer Flávio de Melo
    • João Maurício Rosário
    See publication

Projects

  • La Booteja

    La Booteja is a Windows-native CLI that manipulates UEFI boot configuration directly from userland. It focuses on the core boot variables that determine which EFI application or OS loader your firmware starts.

  • DiskHand

    DiskHand is a comprehensive set of command-line tools and scripts designed for advanced disk management. Leveraging the performance of C++ for low-level disk operations and the scripting power of Python for user interfaces and automation, this project provides powerful utilities for tasks that go beyond standard operating system tools. Whether you need to recover data, manage partitions, or create bit-for-bit disk clones, DiskHand aims to be your go-to solution.

  • BlueThread C++ Class

    BlueThread is a C++ class that enables asynchronous execution of arbitrary functions in a separate thread. It supports thread interruption, deferred execution, and future-based result retrieval. This project is built as a static library and includes unit tests using the Google Test framework.

  • MysticImage

    This project is to implement an steganography application to convert binary files into image files and vice-versa.

Languages

  • English

    Native or bilingual proficiency

  • Portuguese

    Native or bilingual proficiency

  • Spanish

    Elementary proficiency

  • Finnish

    Elementary proficiency

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