Abstract
Due to numerous features such as compact size, longevity, mercury-free start, and higher color rendering index, the introduction of light-emitting diode (LED) lights has changed residential and commercial lighting systems worldwide. There are two main types of LED driver configurations: single-stage (SS) and double-stage (DS). Low-power systems employ SS configuration converters, while high-power commercial systems use DS configuration converters. This study presented a discontinuous conduction mode (DCM) flyback converter with a PI controller for LED lighting, replacing double-stage converter systems. The proposed DCM-based flyback AC-DC converter includes fewer components, lower total harmonic distortions (THD), improved power factor, and high efficiency. The hardware prototype was created and tested at various AC main voltages to ensure the feasibility of the proposed model. At rated voltage 230 V, system THD is 5.2 %, power factor is 0.995, and efficiency is 92.1 %. The whole system efficiency meets the Energy Star standards.
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