Open AccessCONVERSOR AC-DC EM MODO CONTÍNUO DE CORRENTE COM COMPENSAÇÃO EM FREQUÊNCIA PARA LÂMPADAS LED DE BAIXO CUSTO E ALTA EFICIÊNCIA
Author(s) -
Maria Eduarda A Boscoli,
Carlos Margain Araujo,
César Daltóe Berci,
Adilson Eduardo Guelfi,
Donatella Donzelli
Publication year - 2015
Publication title -
colloquium exactarum
Language(s) - English
Resource type - Journals
ISSN - 2178-8332
DOI - 10.5747/ce.2015.v07.n3.e125
Subject(s) - physics , humanities , art
This paper presents a new architecture of a driver of high\udbrightness LEDs, with low cost and high yield. Employs a CUK type\udconverter in continuous mode with current compensation rate to feed\udthe high-brightness LEDs through the grid, from 85V to 265V,\udoperating at high frequency switched Pulse Width Modulation (MLP)\udand connected to a series LC resonant filter for load feeding entry in\udprotection against voltage surges. Twenty LEDs High Power OSRAM\ud720-GWPSL and a circuit with constant current in Offline mode were\udused. The proposed architecture aims to present a proposal for a lowcost\udand low current consumption driver. The comparative study\udbetween the prototype of this device from the graphs obtained from\udthe results of laboratory measurements.\ud\u