DocumentCode
3127203
Title
A simple design and implementation of LED director with solar-power
Author
Cheng, Chien-Lung ; Yeh, Jirn-Chwen ; Chern, Shyi-Ching ; Chen, Zheng-Jun
Author_Institution
Dept. of Electr. Eng., Nat. Formosa Univ., Huwei, Taiwan
fYear
2009
fDate
5-8 July 2009
Firstpage
870
Lastpage
873
Abstract
In this paper, a LED director based on solar-power is developed for education purpose. The solar energy is converted to fixed output voltage to charge battery and drive LED matrix. A boost converter based on PWM controller AIC1630, is used to step up solar voltage. The sign pattern of LED is set and controlled by chip EM78M447SB. Two charging modes, including constant current mode and fixed voltage mode, are applied to charge of battery. Therefore, a shorter charging time and good life-time is reachable. The LED director is useful and convenient by experiment.
Keywords
PWM power convertors; power control; solar power; AIC1630; EM78M447SB; LED director; PWM controller; battery charge; boost converter; solar energy; solar voltage; solar-power; Batteries; Control systems; Inductance; Light emitting diodes; Matrix converters; Photoelectricity; Photovoltaic cells; Silicon; Solar energy; Voltage; Boost Converter; LED Director;
fLanguage
English
Publisher
ieee
Conference_Titel
Industrial Electronics, 2009. ISIE 2009. IEEE International Symposium on
Conference_Location
Seoul
Print_ISBN
978-1-4244-4347-5
Electronic_ISBN
978-1-4244-4349-9
Type
conf
DOI
10.1109/ISIE.2009.5218892
Filename
5218892
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