Efficient Alternating Current Operated White Light-Emitting Diode Chip

被引：34

作者：

Onushkin, Grigory A. ^{[1
]}

Lee, Young-Jin ^{[1
]}

Yang, Jung-Ja ^{[1
]}

Kim, Hyung-Kun ^{[1
]}

Son, Joong-Kon ^{[1
]}

Park, Gil-Han ^{[1
]}

Park, YongJo ^{[1
]}

机构：

[1] Samsung Electromech, Corp R&D Inst, Opt Syst Lab, Kyengi Do 443743, Gyunggi Do, South Korea

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 1-4期

关键词：

Arrays; gallium compounds; integrated circuit design; light-emitting diodes (LEDs); sapphire; semiconductor device fabrication; VOLTAGE;

D O I：

10.1109/LPT.2008.2008204

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The structure of a single light-emitting diode (LED) chip for operation under high voltage alternating current (ac) conditions was proposed. The chip was designed and fabricated as an integrated circuit with several isolated LED structures grown on a single insulated sapphire substrate. The efficient blue LED chip for operation directly from 220-V ac power source has been designed, fabricated, and analyzed. The white ac operated LED (ACOLED) chip demonstrates a value of averaged luminous flux similar to 320 lm and luminous efficiency 80 lm/W under operation from 220-V ac source with 4 W of power consumption. The ladder type of circuit and the efficient ACOLED chip configuration results in proficient operation under ac conditions.

引用

页码：33 / 35

页数：3

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