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http://dx.doi.org/10.5207/JIEIE.2005.19.2.001

Energy Saving Type OF-LED Illuminated Display Board System with MPPT and CCVC Algorithms  

Lee, Seong-Ryong (군산대학교 전자정보공학부)
Jeon, Chil-Hwan (군산대학교 전자정보공학부)
Lee, Su-Won (군산대학교 전자정보공학부)
Lee, Eun-Chul (군산대학교 전자정보공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.19, no.2, 2005 , pp. 1-6 More about this Journal
Abstract
This paper studies the OF-LED(Optical Fiber-LED) illuminated display board system for energy saving. The OF-LED illuminated display board system has PV module, batteries, charge 8t discharge system and dynamic full color display controller. Both maximum power point tracker (MPPT) and constant current & constant voltage controls (CCVC) are used to govern the charging system. This system. improves the charging efficiency of battery. The system is compact and operates only by PV except the rainy days when the sun is unfavorable. in the system display control and charging-discharging control by on-chip microprocessor are simultaneously carried out. To verify the unposed system, me simulation and experiment results show the operating characteristics with a laboratory prototype.
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