Výsledky vyhledávání - "M F, de Melo"

Akademický článek

Análise da resistência ao choque térmico de refratários contendo carbono

Autor: M. A. Quintela, T. M. F. de Melo, I. J. Lage, V. C. Pandolfelli, J. A. Rodrigues

Publikováno v: Cerâmica, Vol 47, Iss 304, Pp 174-179 (2001)

Face à complexidade, ao custo e à duração dos testes cíclicos para avaliação da resistência ao choque térmico, os refratários contendo carbono têm sido tipicamente selecionados com base na sua superior condutividade térmica. Por essa raz�

Externí odkaz: https://doaj.org/article/4b71cb9a8ec34009a12844a788d6e7f0

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Effect of Nb on dynamic strain induced austenite to ferrite transformation

Autor: T. M. F. de Melo, Jetson Lemos Ferreira, Dagoberto Brandão Santos, Paulo Rangel Rios, I. de S. Bott

Publikováno v: Materials Science and Technology. 23:417-422

Dynamic strain induced transformation (DSIT) is an interesting processing route to obtain ultrafine ferrite grains. In the present work, the effect of Nb on DSIT was investigated. Samples of low C–Mn steels, with and without Nb, were intensively de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f99690671a79f92adb84994fc5eb24fe
https://doi.org/10.1179/174328407x168900

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High-power-factor LED driver based on input current shaper using a flyback converter

Autor: Guilherme Gindri Pereira, M. F. de Melo, J.M. Alonso, M.A. Dalla Costa

Publikováno v: IAS

This paper presents a high-power-factor LED driver implemented by using an input current shaper. A DCM-operated flyback converter is placed between the main rectifier and DC bus, in order to increase the conduction angle of the rectifier diodes and t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3472aa87b6a4596e222130e2d9667e06
https://doi.org/10.1109/ias.2015.7356859

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Self-oscillating series-resonant led driver applied to reduce low-frequency current ripple transmission

Autor: Álysson Raniere Seidel, William Dotto Vizzotto, M. F. Menke, M.A. Dalla Costa, J.M. Alonso, M. F. de Melo

Publikováno v: IAS

This paper presents the analysis and design of an LED driver based on the series-resonant converter (SRC) and on the self-oscillating command circuit (SOCC). The use of SRC provides a reduction of the low frequency (LF) ripple in the LEDs' current, o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e419daea310b01b10ec2ec383aba3c2
https://doi.org/10.1109/ias.2015.7356869

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Análise da resistência ao choque térmico de refratários contendo carbono

Autor: José de Anchieta Rodrigues, T. M. F. de Melo, I. J. Lage, Victor C. Pandolfelli, Marco Antônio Quintela

Publikováno v: Cerâmica, Vol 47, Iss 304, Pp 174-179 (2001)
Cerâmica v.47 n.304 2001
Cerâmica (São Paulo. Online)
Universidade de São Paulo (USP)
instacron:USP

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31a2ed9e299398035f2ab25b6c28260c
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132001000400002

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Analysis of low‐frequency current ripple transmission in series‐resonant LED drivers

Autor: M. F. de Melo, M.A. Dalla Costa, William Dotto Vizzotto, Leandro Chies, J.M. Alonso

Publikováno v: Electronics Letters. 51:716-717

The use of series-resonant converters (SRCs) in light-emitting diode (LED) drivers has increased due to its simplicity and high efficiency. Furthermore, the use of a SRC provides reduction of the low-frequency ripple in the LED current, originated by

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9673a315181aaff544dc311ae9086f7b
https://doi.org/10.1049/el.2015.0238

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