Highly Efficient Low Power Consumption Tracking Solar Cells for White LED-Based Lighting System

Although White LED lighting systems powered by solar cells have presented for many years, they are not widely used in today application because of their cost and low energy conversion efficiency. The proposed system use the dc power generated by fixed solar cells module to energize White LED light sources that are operated by directly connected White LED with current limitation resistors, resulting in much more power consumption. This paper presents the use of white LED as a general lighting application powered by tracking solar cells module and using pulse to apply the electrical power to the White LED. These systems resulted in high efficiency power conversion, low power consumption, and long light of the white LED.

Authors:

• Theerawut Jinayim
• Somchai Arunrungrasmi
• Tanes Tanitteerapan
• Narong Mungkung

Keywords:

• Efficiency
• lighting
• light-emitting diode
• pulse
• Solar
• white LED.

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