Study of high power white AC-LED based on the structure of composite bridge with SMD packaging

Zhibin Wang; Yue Gu; Shasha Xie

doi:10.1117/12.865568

12 October 2010 Study of high power white AC-LED based on the structure of composite bridge with SMD packaging

Zhibin Wang, Yue Gu, Shasha Xie

Proceedings Volume 7659, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing; 76590D (2010) https://doi.org/10.1117/12.865568
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

In this paper, a method of composite bridge structure packing with self-rectifier in the LED chips is introduced, based on the characteristics of PN junction of the high power LED. About dozens of low-power LED chips are pasted on the PCB boards which having good thermal conductivity in the form of bridge structure, regulating input voltage and current strength to make the LED chips at different bridge arms worked alternately by using of LED PN junction's own characteristics to achieve self-rectification. The copper cooling plates are sandwiched in the PCB boards to achieve for saving resource and improving brightness. During the work time, the LED flashes lights. Because of its feature of continuing light after power properties, the human eyes can not perceive the LED's flashing, their understanding on the light emitting is continuous.

Citation Download Citation

Zhibin Wang, Yue Gu, and Shasha Xie "Study of high power white AC-LED based on the structure of composite bridge with SMD packaging", Proc. SPIE 7659, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, 76590D (12 October 2010); https://doi.org/10.1117/12.865568

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