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”

quinta-feira, 16 de outubro de 2014

Control Design of Series Connected MOSFETs for High Voltage Applications




 Control Design of Series Connected MOSFETs for High
Voltage Applications
Mirko Bodach, Lutz Zacharias, Björn Veit, Ringo Lehmann, Bernd Günther, Denny Ehrler
University of Applied Sciences Zwickau, Dr.-Friedrichs-Ring 2A, D-08056 Zwickau, GERMANY,
Mirko.Bodach@fh-zwickau.de, Bjoern.Veit@fh-zwickau.de, Lutz.Zacharias@fh-zwickau.de,
Ringo.Lehmann@fh-zwickau.de, Bernd.Guenther@fh-zwickau.de, Denny.Ehrler@fh-zwickau.de

Abstract
A new electro-mechanical converter concept for renewables needs a special DC / DC converter.
The converter has to transform a voltage of about 8 kV into a lower voltage of about 400 volts
covering a power range of 250 up to 1,000 W. Using this type of converter, semiconductor
switching elements are required, which can handle a voltage of about 8 kV and carrying a direct
current of about 60 mA.

WEB SEMINARY 18/10/2014 -10A.M. Switch Mode Power Supply Measurements using Oscilloscopes

Switch Mode Power Supply Measurements using Oscilloscopes


PRESENTER Johnnie Hancock, Oscilloscope Product Manager, Keysight Technologies Johnnie Hancock is an Oscilloscope Product Manager at Keysight Technologies. He began his career with Hewlett-Packard in 1979 as an embedded hardware designer, and has over 35 years test and measurement experience in various roles for HP, Agilent, and now Keysight Technologies. Johnnie is currently responsible for application support activities and he regularly speaks at technical conferences worldwide. Johnnie graduated from the Universityof South Florida with a degree in electrical engineering.

WHO SHOULD ATTEND

Engineers and technicians testing or debugging switch mode power supplies.

Onde e quando

PreçoData(s)LocalPara mais informações
Gratuito2014-11-18 10:00
Pacific
At Your PCEnroll to view the November 18, 2014 live broadcast
LINK
http://www.keysight.com/main/eventDetail.jspx?cc=BR&lc=por&ckey=2477362&nid=-536902447.0&pid=1000001736%3Aepsg%3Apgr

segunda-feira, 13 de outubro de 2014

Design and Implementation of a Fuzzy Adaptive Sliding-Mode Voltage Control System for Three-Phase UPS Inverter Khawar Naheem DIVISION OF ELECTRONIC AND ELECTRICAL ENGINEERING DONGGUK UNIVERSITY SEOUL




 ( Abstract )
Nowadays, the nonlinear nature of electric loads leads to a strong demand of a high-quality and reliable power source both by the customers and utilities. To address this issue, the uninterruptible power supplies (UPSs) are extensively employed for the critical loads such as communication systems (i.e., data centers), medical support systems, semiconductor manufacturing systems, etc. For improving the power quality using UPS system, it is important to achieve the sinusoidal output voltage waveform with very low total harmonic distortion (THD) regardless of the load types. Typically, the inverter with LC output filter in the UPS system is a suitable solution to fulfill this requirement. The main criteria to evaluate the regulation performance of the UPS inverter output voltage are fast dynamic response, small steady-state error, and low THD. Furthermore, the various load conditions (abrupt load changes, unbalanced load, and nonlinear load) including parameters uncertainties extremely degrade the performance of the UPS inverter. Thus, an appropriate control strategy is desired to sufficiently meet the performance criteria of the UPS systems under any type of electrical loads and uncertainties.
LINK
http://www.mediafire.com/view/wg9c9ogcdtpdz46/FUZZY_INVERTER.pdf