Analysis and design considerations of two-stage AC-DC LED driver without electrolytic capacitor

Abstract

LED is widely used for lighting because of its high luminous efficiency and long lifetime. However, the lifetime of LED driver is much more limited due to the electrolytic capacitor, which is a key component in AC-DC LED drivers. Thus, as the storage capacitor, film capacitor will be more appropriate than electrolytic capacitor for a long lifetime LED… (More)

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