LED lighting device and current control method thereof

The LED lighting device of this invention uses a power transmission line to electrically connect a driving module with at least an LED light body. The driving module outputs a high-frequency AC power with voltage higher than 30V and frequency higher than 72Hz via frequency modulation. Each LED light...

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Bibliographic Details
Main Authors HSU, CHUN-KAI, WU, MENGAI, TZOU, HUA-LUNG
Format Patent
LanguageChinese
English
Published 16.01.2011
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:The LED lighting device of this invention uses a power transmission line to electrically connect a driving module with at least an LED light body. The driving module outputs a high-frequency AC power with voltage higher than 30V and frequency higher than 72Hz via frequency modulation. Each LED light body has at least an LED unit and a rectifier module, which modulates the high-frequency AC power of the driving module to a DC power to drive the LED unit. Therefore, flickering on the light source can be effectively improved and there is no need to build filtering devices inside each LED light body. Only simple circuits are required to reliably drive the LED units to achieve fast product development and reduce cost.
Bibliography:Application Number: TW200998123213