sábado, 12 de junho de 2010
Compact Fluorescent Plug-In Ballast-in-a-Socket
Compact Fluorescent Plug-In Ballast-in-a-Socket
DOE Cooperative Agreement No. DE-FC26-99FT40630
NETL Project Manager: Ed Christy
Period Covered: December 22, 1999 - December 21, 2001
Submitted for General Electric by:
Rebecca Sullivan Voelker
GE Research and Development Center
E-Mail: voelkere@crd.ge.com
THE FULL PAPER IS HERE:
http://www.4shared.com/document/lsxc1q1i/ballastUSA.html
Executive Summary
The primary goal of this program was to develop a ballast system for plug-in CFLs (compact fluorescent
lamps) that will directly replace standard metal shell, medium base incandescent lampholders (such as
Levition # 6098) for use with portable lamp fixtures, such as floor, table and desk lamps. A secondary
goal was to identify a plug-in CFL that is optimized for use with this ballast. This Plug-in CFL Ballastin-
a- Socket system will allow fixture manufacturers to easily manufacture CFL-based high-efficacy
portable fixtures that provide residential and commercial consumers with attractive, cost-effective, and
energy-efficient fixtures for use wherever portable incandescent fixtures are used today. The advantages
of this proposed system over existing CFL solutions are that the fixtures can only be used with highefficacy
CFLs, and they will be more attractive and will have lower life-cycle costs than screw-in or
adapter-based CFL retrofit solutions. These features should greatly increase the penetration of CFL’s into the North American market.
sexta-feira, 4 de junho de 2010
terça-feira, 25 de maio de 2010
Series connection of IGBT
The-Van NGUYEN, Pierre-Olivier JEANNIN, Eric VAGNON, David FREY, Jean-Christophe CREBIER
Grenoble Electrical Engineering Laboratory, CNRS UMR 5529 INPG/UJF
BP 46, F – 38402 SMH Cedex,
Grenoble, France
The-Van.NGUYEN@g2elab.grenoble-inp.fr
Pierre-Olivier.JEANNIN@g2elab.grenoble-inp.fr
sábado, 22 de maio de 2010
ESTABILIZADORES TENSION FERRORESONANTES
sábado, 15 de maio de 2010
Ray Kurzweil - Scientist, inventor, entrepreneur, author and futurist
sexta-feira, 14 de maio de 2010
Watch: Engineering, Innovation, and the Challenges of the 21st Century
Watch video Feb. 23, 2010, talk by Charles M. Vest, president of the National Academy of Engineering and President Emeritus, MIT.
Vest's lecture is part of the John R. and Donna S. Hall Engineering Lecture Series, established in 2002 to allow Vanderbilt engineering students hear renowned engineers from universities and agencies address engineering topics of particular interest.
Contact: Brenda Ellis
Verification of Rogowski Current Transducer’s
Ability to Measure Fast Switching Transients
C. R. Hewson, W. F. Ray and R. M. Davis
Power Electronic Measurements Ltd.,
164 Lower Regent Street, Beeston, Nottingham, NG9 2DJ, UK
Abstract - Rogowski current transducers combine a high
bandwidth, an easy to use thin flexible coil, and low insertion
impedance making them an ideal device for measuring pulsed
currents in power electronic applications. Practical verification of
a Rogowski transducer’s ability to measure current transients due
to the fastest MOSFET and IGBT switching requires a calibrated
test facility capable of generating a pulse with a rise time of the
order of a few 10’s ns. A flexible 8-module system has been built
which gives a 2000A peak current with a rise time of 40ns. The
modular approach enables verification for a range of transducer.
quinta-feira, 13 de maio de 2010
FONTE DE ALIMENTAÇAO DE UM TUBO DE RAIO X PARA DIAGNOSTICOS ODONTOLOGICOS
POWER SOURCE OF A X-RAY TBE FOR DENTAL DIAGNOSIS-ALCEU ANDRE BADIN
UNIVERSIDADE FEDERAL DE SANTA CATARINA -PROGRAMA DE PÓS GRADUAÇÃO EM ENGENHARIA EÉTRICA
FONTE DE ALIMENTAÇAO DE UM TUBO DE RAIOS X PARA DIAGNÓSTICOS ODONTOLOGICOS
DISSERTAÇÃO SUBMETIDA A UNIVERSIDADE FEDERAL DE SANTA CATARINA PARA A
OBTENÇÃO DE GRAU DE MESTRE EM ENGENHARIA ELÉTRICA.
ALCEU ANDRE BADIN
FLORIANOPOLIS OUTUBRO 2004- BRASIL
terça-feira, 11 de maio de 2010
Um Conversor Boost Com Comutação Suave Aplicado a Um Sistema Ininterrupto de Energia
FACULDADE DE ENGENHARIA ELÉTRICA
PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA
Um Conversor Boost Com Comutação Suave Aplicado a Um Sistema Ininterrupto de Energia
ORIENTANDO: ALEXANDRE BORGES CRISTÓVÃO
ORIENTADOR: PROF. LUIZ CARLOS DE FREITAS, DR.
Dissertação apresentada à Universidade Federal de Uberlândia por Alexandre Borges Cristóvão, como parte dos requisitos para a obtenção do título de Mestre em Engenharia Elétrica; aprovada em 15/07/2005, pela seguinte banca examinadora:
Luiz Carlos de Freitas, Dr (UFU) - Orientador
José Antônio Lambert, Dr (UFMT)
Ernane Antônio Alves Coellho, Dr (UFU)
João Batista Vieira Júnior, Dr (UFU)
João Carlos de Oliveira, Dr (UFU)
Valdeir José Farias, Dr (UFU)
sexta-feira, 7 de maio de 2010
terça-feira, 4 de maio de 2010
Tecnologia Militar - Brigadeiro Venâncio Alvarenga Gomes -PORQUE INVESTIR EM PESQUISA E TECNOLOGIA-PROGRAMA ESPACIAL BRASIL
PROGRAMA ESPACIAL BRASIL-Tecnologia Militar - Thyrso Vilela Neto
domingo, 2 de maio de 2010
62º FPB - Tecnologia Militar - Luis Nassif - BRASIL
Primera Comunicación con el Cosmos en Latinoamérica -PERU-RUSSIA
PROGRAMA ESPACIAL EN LA UNI-PERU-RUSSIA
sábado, 1 de maio de 2010
Chinese Physics C
Chinese Physics C covers research into the theory, experiment and applications of particle physics, nuclear physics and astrophysics.
Announcement from IOP Publishing
From January 2009, Chinese Physics C (formerly High Energy Physics and Nuclear Physics) will be hosted and distributed (outside mainland China) by IOP Publishing.
Chinese Physics C (formerly High Energy Physics and Nuclear Physics) was founded in 1977. It is sponsored by the Chinese Physical Society and supported by the Institute of High Energy Physics and the Institute of Modern Physics of the Chinese Academy of Sciences.