Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Denis de Castro Pereira"'
Autor:
Fernando Lessa Tofoli, Denis de Castro Pereira, Guilherme Marcio Soares, Eric G. Pusiol, Henrique A. C. Braga, Pedro S. Almeida
Publikováno v:
Electrical Engineering. 102:2135-2148
This work proposes a reliable and efficient two-stage driver solution for extra-high-current (EHC) chip-on-board (COB) light-emitting diode (LED) applications. An ac–dc boost converter operating in continuous conduction mode is employed to provide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d02a849d83f252d82b80aa85bc76ff8
https://doi.org/10.1007/s00202-020-01021-7
https://doi.org/10.1007/s00202-020-01021-7
Autor:
Pedro L. Tavares, Fernando Lessa Tofoli, Henrique A. C. Braga, Pedro S. Almeida, Guilherme Marcio Soares, Denis de Castro Pereira
Publikováno v:
Eletrônica de Potência. 24:147-156
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75d8c4733314656253ef67853d5ea2f4
https://doi.org/10.18618/rep.2019.2.0054
https://doi.org/10.18618/rep.2019.2.0054
Autor:
Pedro L. Tavares, Guilherme Marcio Soares, Rubio Campos Marques, Denis de Castro Pereira, Henrique A. C. Braga, Pedro S. Almeida, Fernando Lessa Tofoli
Publikováno v:
2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC).
This work lies on the active cooling and thermal evaluation applied to an extra-high current (up to 12 A) chip-on-board (COB) light-emitting diode (LED). Simulations are performed employing computational fluid dynamics (CFD) so that the main thermal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6797eb8eccc010e4213c3b3e321a96d
https://doi.org/10.1109/cobep/spec44138.2019.9065847
https://doi.org/10.1109/cobep/spec44138.2019.9065847
Autor:
Henrique A. C. Braga, Pedro S. Almeida, Fernando Lessa Tofoli, Denis de Castro Pereira, Guilherme Marcio Soares, Everton Bernard Figueiredo Rabelo
Publikováno v:
2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC).
This work presents a performance evaluation concerning interleaved buck structures used to drive extra-high current (up to 12 A) chip-on-board (COB) light-emitting diodes (LEDs). The analysis is carried out employing nonideal elements in simulations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44444c0b8556fd6ae1cfa78ec229e230
https://doi.org/10.1109/cobep/spec44138.2019.9065543
https://doi.org/10.1109/cobep/spec44138.2019.9065543
Autor:
Paula dos Santos Vicente, Henrique A. C. Braga, Fernando Lessa Tofoli, Eduardo Moreira Vicente, Wesley Josias de Paula, Denis de Castro Pereira
Publikováno v:
International Journal of Electronics. 104:1077-1094
This paper presents a comparison among mathematical models used in the simulation of solar photovoltaic modules that can be easily integrated with power electronic converters. In order to perform the analysis, three models available in literature and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98dd6efedb8a92f49e84088d4f769cca
https://doi.org/10.1080/00207217.2017.1285434
https://doi.org/10.1080/00207217.2017.1285434
Autor:
Gabriel Henrique Monteiro Tavares, Wesley Josias de Paula, Guilherme Marcio Soares, Denis de Castro Pereira, Henrique A. C. Braga, Pedro S. Almeida
Publikováno v:
2018 13th IEEE International Conference on Industry Applications (INDUSCON).
This paper presents a study of estimation techniques applied to power MOSFET switching losses. Three loss prediction methods are, then, chosen for this proposal. In this context, the first one uses simple equations to describe the switching transient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d675c03a821a50856f430c563dda564
https://doi.org/10.1109/induscon.2018.8627228
https://doi.org/10.1109/induscon.2018.8627228
Autor:
Cristiano Ferrara de Resende, Denis de Castro Pereira, Vinicius M. de Albuquerque, Pedro L. Tavares, Henrique A. C. Braga, Pedro S. Almeida, Rafael Marcio da Silva Brier de Sales, Aline Rocha Silva, Paulo Henrique Pereira Peixoto, José Machado Schroder Dutra
Publikováno v:
Proceedings XXII Congresso Brasileiro de Automática.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::311b73efbb1ae9afa914c2f420560541
https://doi.org/10.20906/cps/cba2018-0524
https://doi.org/10.20906/cps/cba2018-0524
Autor:
Denis de Castro Pereira, Demercil de Sousa Oliveira Júnior, Fernando Lessa Tofoli, Wesley Josias de Paula
Publikováno v:
IET Power Electronics. 8:2044-2057
The major consideration in dc-dc conversion is often associated with high efficiency, reduced stresses involving semiconductors, low cost, simplicity and robustness of the involved topologies. In the last few years, high-step-up non-isolated dc-dc co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02a0d2fad3cb2d70b91fd4b03496d58e
https://doi.org/10.1049/iet-pel.2014.0605
https://doi.org/10.1049/iet-pel.2014.0605
Publikováno v:
International Journal of Photoenergy, Vol 2015 (2015)
The generation of electricity from photovoltaic (PV) arrays has been increasingly considered as a prominent alternative to fossil fuels. However, the conversion efficiency is typically low and the initial cost is still appreciable. A required feature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4357e3f5699c94bf7b49b18b8bc63284
https://doi.org/10.1155/2015/812582
https://doi.org/10.1155/2015/812582
Autor:
Pedro L. Tavares, Wesley Josias de Paula, Henrique A. C. Braga, Fernando Lessa Tofoli, Denis de Castro Pereira
Publikováno v:
2017 Brazilian Power Electronics Conference (COBEP).
This work presents an innovative method to achieve extra-high luminous flux (higher than 20 klm) in solid-state outdoor floodlighting. This technique makes use of high-current COB (chip-on-board) LEDs (light emitting diodes) instead of high-voltage m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a0f4f34d0ab5bf615a5d0bcc721d4cb
https://doi.org/10.1109/cobep.2017.8257267
https://doi.org/10.1109/cobep.2017.8257267