Study on Solar LED Lighting System

Yu Chuan Jiang; Yi Si Tang; Gang Lin Hu

doi:10.4028/www.scientific.net/AMM.373-375.2053

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 373-375Study on Solar LED Lighting System

Study on Solar LED Lighting System

Abstract:

The present study developed a high-efficiency charge/discharge controller for stand-alone solar LED lighting system by incorporating an nMPPO (near-maximum-power-point-operation) design, a PWM battery charge control, and a PWM battery discharge control to drive the LED. A battery charge control system using PWM technique with feedback control is developed in the present study to charge the battery in full capacity. The daily outdoor experiment shows the battery capacity can be charged 9.7% more after the overcharge point.