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The impedance-based structural health monitoring technique uses measured signatures changes to identify incipient damages in structures. The purpose is to perform a correlation of these changes with the physical phenomena. However, since... more
The impedance-based structural health monitoring technique uses measured signatures changes to identify incipient damages in structures. The purpose is to perform a correlation of these changes with the physical phenomena. However, since electromechanical coupling exists, some environmental influences such as temperature changes may lead to false decision regarding the condition of the structure. As a result, innovative machine learning tools have been extensively investigated to avoid errors in structural prognosis and, in this sense, recent applications of convolutional neural networks (CNN) have emerged within the scope of SHM research, focusing mainly on vibration analysis. However, studies that aim to combine neural architectures with intelligent materials for structural monitoring purposes have been poorly evaluated. Consequently, its integration with the electromechanical impedance method is still considered as being a new application of CNN. Thus, in order to contribute to t...
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Research Interests: Humanities and Art
AbstractThis paper presents a high power factor electronic ballast used in fluorescent lamps with a single power stage and a single-switch. This topology has been obtained by combining the Boost topologies and a new inverter topology... more
AbstractThis paper presents a high power factor electronic ballast used in fluorescent lamps with a single power stage and a single-switch. This topology has been obtained by combining the Boost topologies and a new inverter topology with coupled inductors. The use of a ...
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Este trabalho propõe uma topologia de conversor Forward a duas chaves associada a um conversor Forward a duas chaves associada a um conversor Forward Boost quadrático, que apresenta a característica de ampla elevação da tensão de entrada,... more
Este trabalho propõe uma topologia de conversor Forward a duas chaves associada a um conversor Forward a duas chaves associada a um conversor Forward Boost quadrático, que apresenta a característica de ampla elevação da tensão de entrada, ou seja, de 12V para 80V. A combinação destes estágios resulta em uma fonte chaveada em que as tensões de saída são +200V e -200V. A operação dos conversores é analisada e resultados são apresentados para validar a proposta. Palavras-chave: Conversor forward a duas chaves. Fontes chaveadas. Abstract This paper presents a topology of two-switch Forward converter associated with a quadratic Boost converter, which provides large voltage step-up (from 12V to 80V). The combination of the stages results in a switched-mode power supply (SMPS) whose output voltages are +200V and -200V. The operation of both converters is analyzed, as some results concerning the proposed SMPS are presented.
Page 1. Analysis of Losses in Cables and Transformers Under Power Quality Related Issues Fernando L. Tofoli, Aniel S. Morais, Carlos A. Gallo, Sérgio MR Sanhueza, Aloísio de Oliveira Federal University of Uberlândia Department Of... more
Page 1. Analysis of Losses in Cables and Transformers Under Power Quality Related Issues Fernando L. Tofoli, Aniel S. Morais, Carlos A. Gallo, Sérgio MR Sanhueza, Aloísio de Oliveira Federal University of Uberlândia Department Of Electrical Engineering Av. ...
Research Interests: Engineering, Harmonic Analysis, Power Electronics, Power Quality, Service Quality, and 15 morePower System, Transformer, Reliability, Reactive Power, Cables, APEC, Cost Benefit Analysis, Harmonic distortion, Power Factor, Harmonics, Total Harmonic Distortion, Cable, Low voltage, Energy quality, and Cost benefit ratio
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Aniel S. Morais, Carlos A. Gallo, Fernando L. Tofoli, Ernane AA Coelho, Luiz C. Freitas, Valdeir J. Farias, João B. Vieira Jr.* Federal University of Uberlândia Department Of Electrical Engineering Campus Santa Mônica Bloco... more
Aniel S. Morais, Carlos A. Gallo, Fernando L. Tofoli, Ernane AA Coelho, Luiz C. Freitas, Valdeir J. Farias, João B. Vieira Jr.* Federal University of Uberlândia Department Of Electrical Engineering Campus Santa Mônica Bloco "3N" Av. João Naves de Ávila, 2160 38400-902 ...
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Research Interests: Engineering, Structural Health Monitoring, Electrical Impedance Tomography, Low Power, Structural Change, and 10 moreReal Time, Signal Conditioning, Sensors and Actuators, Actuator, Frequency Response Function, Piezoelectricity, Non Destructive Evaluation, Frequency Response, Electrical Impedance, and piezoelectric sensor
Abstract The Structural Health Monitoring-SHM method based on electrical impedance has been developed as a promising tool for structure failure identification in real time and is considered a novel non-destructive evaluation method. The... more
Abstract The Structural Health Monitoring-SHM method based on electrical impedance has been developed as a promising tool for structure failure identification in real time and is considered a novel non-destructive evaluation method. The piezoelectric-PZT impedance ...
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Instituto Federal de Educação, Tecnologia e Ciência de Santa Catarina2 Av. Nereu Ramos, 3450-D Bairro Seminário Chapecó-SC Brasil CEP 89813-000 Fone/Fax: 55 49 33314651 E-mail: julioschonell@yahoo.com.br Universidade Federal de... more
Instituto Federal de Educação, Tecnologia e Ciência de Santa Catarina2 Av. Nereu Ramos, 3450-D Bairro Seminário Chapecó-SC Brasil CEP 89813-000 Fone/Fax: 55 49 33314651 E-mail: julioschonell@yahoo.com.br Universidade Federal de Uberlândia3 Faculdade de ...
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Page 1. Article Piezoelectric actuators applied to neutralize mechanical vibrations Carlos Alberto Gallo1, Fernando Lessa Tofoli2, Domingos Alves Rade1 and Valder Steffen Jr1 Abstract Piezoelectric actuators are widely used ...
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Research Interests: Engineering, Electronic Engineering, Computer Science, High Frequency, Transformer, and 12 moreDynamic Response, Boost Converter, Converters, Harmonic distortion, Power Factor, Front end, Power Factor Correction, High Efficiency, Total Harmonic Distortion, Switch Mode Power Supplies, Switched Mode Power Supply (SMPS), and Snubber
This work presents the conception and analysis of a switch-mode power supply with desirable characteristics of high power factor, low harmonic distortion, regulated output voltage, and high efficiency. An interleaved boost converter... more
This work presents the conception and analysis of a switch-mode power supply with desirable characteristics of high power factor, low harmonic distortion, regulated output voltage, and high efficiency. An interleaved boost converter associated with a ...