AUTOR DO BLOG ENG.ARMANDO CAVERO MIRANDA SÃO PAULO BRASIL

"OBRIGADO DEUS PELA VIDA,PELA MINHA FAMILIA,PELO TRABALHO,PELO PÃO DE CADA DIA,PROTEGENOS DO MAL"

"OBRIGADO DEUS PELA VIDA,PELA MINHA FAMILIA,PELO TRABALHO,PELO PÃO DE CADA DIA,PROTEGENOS  DO MAL"

“SE SEUS PROJETOS FOREM PARA UM ANO,SEMEIE O GRÂO.SE FOREM PARA DEZ ANOS,PLANTE UMA ÁRVORE.SE FOREM PARA CEM ANOS,EDUQUE O POVO.”

“Sixty years ago I knew everything; now I know nothing; education is a progressive discovery of our own ignorance. Will Durant”

segunda-feira, 29 de setembro de 2014

FABRICAÇAO DE TRANSFORMADORES ELETRICOS MANAUS

PARTE1 PARTE2 PARTE3

High Frequency High Power Converters for Industrial Applications Pooya Davari M.Sc, B.Eng (Electrical Engineering) Queensland University of Technology


High Frequency High Power Converters for Industrial Applications 
A Thesis by Publication submitted in Partial Fulfilment of the Requirement for the Degree of Doctor of Philosophy Pooya Davari M.Sc, B.Eng (Electrical Engineering)
 Science and Engineering Faculty School of Electrical Engineering and Computer Science Queensland University of Technology Queensland, Australia
 Abstract 
High power converters have found their way into many industries. Variety of industries processes have increased their requirements in power level, economy of scale, efficiency, new control method, new topologies and using new technologies (like new semiconductors). The incentive to move to higher frequencies is not only given by the reduced sizes of the passive components, magnetic core losses, but also the application demands. It is thus clear that much can be gained from moving to a design that enables operation at very high frequency. Hence in the recent years, high frequency high power converters have been one of the most active areas in research. In this PhD research project high power converters have been considered, regarding to their power level, as two categories of high instantaneous and high average power converters. High frequency high instantaneous power converters mostly known as pulsed power supplies are studied as the main aspect of this research, and high frequency high average power converters are investigated with the specific intention on high power piezoelectric transducer applications as the second aspect.
LINK
http://eprints.qut.edu.au/62896/1/Pooya_Davari_Thesis.pdf

Low & Medium Voltage Transformer

sábado, 27 de setembro de 2014

Mod-01 Lec-14 MOSFETs

India celebrates putting satellite into orbit around Mars

India triumphed in its first interplanetary mission, placing a satellite into orbit around Mars on Wednesday morning and catapulting the country into an elite club of deep-space explorers Scientists broke into wild cheers as the Mars Orbiter Mission, affectionately nicknamed MOM, manoeuvred into its designated place around the red planet in an operation described as "flawless". The success marks a milestone for India's space program in demonstrating that it can conduct complex missions and act as a global launch pad for commercial, navigational and research satellites. India was particularly proud that MOM was developed with homegrown technology and for a bargain price of about US$75 million. Nasa's much larger Mars Atmosphere and Volatile Evolution mission, or Maven, which reached its position around the red planet on Sunday, cost nearly 10 times as much at US$671 million.

quinta-feira, 25 de setembro de 2014

India celebrates Mars mission 'cheaper than a movie'

India’s prime minister Narendra Modi led nationwide celebrations yesterday after his country became the first in the world to succesfully send a satellite to Mars on a first attempt. The Mangalyaan satellite entered the red planet’s orbit on Tuesday evening, a day after the American MAVEN - Mars Atmosphere and Volatile EvolutioN - mission.
 SOURCE ORIGINAL
http://www.telegraph.co.uk/news/worldnews/asia/india/11119362/India-celebrates-Mars-mission-cheaper-than-a-movie.html

sábado, 20 de setembro de 2014

Projeto de Transformador utilizado em uma Planta de Plasma AUTOR Giancarlos Costa Barbosa UNIVERSIDADE FEDERAL DO RIO GRANDE DO NORTE CENTRO DE TECNOLOGIA PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA E DE COMPUTAÇÃO-BRASIL


Abstract
The contamination of the environment is an issue that concerns all. The toxic waste is a major cause of contamination and a global solution to eliminate it is the use of thermal plasma. Currently, a toxic waste inertization plant is development. This plant is basically composed by a radio-frequency power supply (RF power supply) and an inductive plasma torch. As the power source and the torch have a difference in impedance, it is necessary to use a transformer. Thus, this work presents the methodology and the development of a medium-power transformer (50 kW) operating at high frequency (400 kHz), using software for calculating electromagnetic fields.
LINK1
https://mega.co.nz/#!ywFkxD4L!eizcB0bJFhVmwXb09Ovs20qVo9ayQR-CG2PDJBeMV1A
LINK2
http://docente.ifrn.edu.br/giancarlosbarbosa/dissertacao/dissertacao