Open AccessElectrolytic capacitor‐less high‐brightness LED driving AC/DC converter for LED performance degradation reduction
Author(s) -
Park H.Y.,
Seo B.J.,
Park K.S.,
Kang K.S.,
Nho E.C.
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2018.0745
Subject(s) - degradation (telecommunications) , reduction (mathematics) , capacitor , electrolytic capacitor , brightness , materials science , electrical engineering , optoelectronics , light emitting diode , electronic engineering , voltage , engineering , physics , optics , mathematics , geometry
An electrolytic capacitor‐less AC/DC converter for high‐brightness LED driving is proposed. It is possible for the proposed scheme to be implemented in more cost‐effective and small‐sized system compared with the conventional electrolytic capacitor‐less converters with additional devices. The reliability, efficacy, and lifetime of the LED driven by the suggested converter can be improved by about 6% compared to those of the conventional converter using harmonic injection method. Experiments are carried out to show the validity of the proposed converter.