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”

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quinta-feira, 8 de maio de 2014

A Three-in-One Converter for Regular and Emergency Lighting Applications Yung-Chun Wu and Yu-Kai Chen,


 
A Three-in-One Converter for Regular and Emergency Lighting Applications Yung-Chun Wu and Yu-Kai Chen,
Abstract—This paper presents a three-in-one converter for regular and emergency lighting applications. The converter can function as regular ballast, emergency ballast, and battery charger/discharger, achieving regular and emergency lighting features. The three-in-one converter used in the ballast is an integration of a bidirectional flyback converter and two half-bridge series-resonant parallel-loaded inverters. The derivation and operating principle of the proposed converter are first presented, and an application to regular and emergency lighting is then developed. With the proposed converter and a single-chip microcontroller EM78P458, a low cost multifeature electronic ballast can be readily implemented and installed. Hardware measurements have verified its feasibility and the desired features.
LINK
https://www.mediafire.com/?4l8c0t2tx45c03q

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