大功率白光发光二极管光源的制作(英文)  

Fabrication of high-power white light emitting diode lamp

作　　者：钱敏[1] 李海波[1] 林丽锋[1] 张哲娟[1] 刘菁菁[1] 杨介信 冯涛[1] 潘丽坤[1] 孙卓[1] 

机构地区：[1]华东师范大学纳光电集成与先进装备教育部工程研究中心,上海200062 [2]上海芯光科技有限公司,上海200333

出　　处：《功能材料与器件学报》2009年第1期92-96,共5页Journal of Functional Materials and Devices

基　　金：Special Project for Nanotechnology of Shanghai(No.0752nm009);Special Project for Shanghai R&D Public Service Platform(No.07DZ22944);Special Project for Solid-State Lighting Engineering and Optoelectronics of Shanghai(No.07DZ11405,07DZ11406,07DZ11401)

摘　　要：采用GaN基蓝色发光芯片为激发源,结合黄色硅酸盐系列荧光粉封装成大功率白光发光二极管(W-LEDs)。利用24颗大功率5W白光发光二极管制作了两种不同连接方式的W-LEDs路灯:2并12串,和4并6串。设计了相应的驱动电路,对这两种不同连接方式的大功率W-LEDs路灯的光电特性及其在照明光源中的应用条件作了深入地研究和对比,测试了它们的伏安特性,发光效率以及功效,结果表明2并12串连接方式的W-LEDs路灯具有更加稳定的伏安特性,更高的照度以及更高的功效。与高压钠灯和荧光灯的特性相比较,W-LEDs路灯作为绿色环保光源灯,具有更高的显色指数,更加环保,节能。With GaN blue light emitting diodes （LEDs）, high -power white LEDs （W- LEDs） were pack- aged with yellow poly - silicate phosphor. In this paper, W - LEDs lamps were made by 24 pieces high - power W - LEDs in two different connection ways ： 2 - parallel with 12 - series, and 6 - parallel with 4 - series. With a proper driving circuit for the high - power W - LEDs lamps, the I - V characteristics, current illumina- tion characteristic, power, and efficiency of the two different connections were studied, the experiment result showed that 2 - parallel with 12 - series W - LEDs lamp had better properties than that of the 6 - parallel with 4 - series W - LEDs lamp. W - LEDs lamps also have advantages of low power consumption, high reliability and stability compared with high -pressure sodium lamp and fluorescent lamp.

关 键 词：荧光粉 白光发光二极管 伏安特性 发光特性 功效 

分 类 号：TM923.01[电气工程—电力电子与电力传动] TN312.8[电子电信—物理电子学]