LED DRIVING DEVICE AND METHOD FOR DRIVING AN LED BY USING SAME

The present invention relates to an LED driving device and a method for driving an LED by using same. According to one aspect of the present invention, an LED driving device includes: a light source unit including first to nth LED groups sequentially connected in series; first to nth input terminals...

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Bibliographic Details
Main Author LEE, DONG-IL
Format Patent
LanguageEnglish
French
Korean
Published 03.01.2013
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Summary:The present invention relates to an LED driving device and a method for driving an LED by using same. According to one aspect of the present invention, an LED driving device includes: a light source unit including first to nth LED groups sequentially connected in series; first to nth input terminals respectively connected to output terminals of the first to nth LED groups; and a driving control unit for controlling each of first to nth input currents through first to nth current detect signals generated by reflecting the first to nth input currents, which are inputted to the first to nth input terminals, at a predetermined ratio. La présente invention concerne un dispositif de commande de DEL et un procédé de commande de DEL l'utilisant. Selon un aspect de la présente invention, un dispositif de commande de DEL comprend : une unité source de lumière comprenant 1 à n groupes de DEL connectés séquentiellement en série; 1 à n bornes d'entrée connectées respectivement aux bornes de sortie des 1 à n groupes de DEL; et une unité de commande d'entraînement permettant de commander chacun des 1 à n courants d'entrée au moyen de 1 à n signaux de détection de courant générés par la réflexion des 1 à n courants d'entrée, qui sont entrés dans les 1 à n bornes d'entrée, à un rapport prédéfini.
Bibliography:Application Number: WO2012KR03522