公开(公告)号：US08791483B2

公开(公告)日：2014-07-29

申请号：US13077254

申请日：2011-03-31

Applicant: Kyung Hee Ye ,  Chang Youn Kim ,  Jin Cheol Shin ,  Joon Hee Lee ,  Jong Kyun You ,  Hong Chol Lim

Inventor： Kyung Hee Ye ,  Chang Youn Kim ,  Jin Cheol Shin ,  Joon Hee Lee ,  Jong Kyun You ,  Hong Chol Lim

IPC: H01L33/00

CPC classification number: H01L33/46 ,  H01L33/0079 ,  H01L33/20 ,  H01L33/22 ,  H01L33/24 ,  H01L33/387 ,  H01L33/42 ,  H01L33/44

Abstract: A high-efficiency light emitting diode including: a semiconductor stack positioned on a support substrate, including a p-type compound semiconductor layer, an active layer, and an n-type compound semiconductor layer; an insulating layer disposed in an opening that divides the p-type compound semiconductor layer and active layer; a transparent electrode layer disposed on the insulating layer and the p-type compound semiconductor layer; a reflective insulating layer covering the transparent electrode layer, to reflect light from the active layer away from the support substrate; a p-electrode covering the reflective insulating layer; and an n-electrode is formed on top of the n-type compound semiconductor layer. The p-electrode is electrically connected to the transparent electrode layer through the insulating layer.

Abstract translation: 一种高效率发光二极管，包括：位于支撑基板上的半导体堆叠，包括p型化合物半导体层，有源层和n型化合物半导体层; 设置在分隔所述p型化合物半导体层和有源层的开口中的绝缘层; 设置在绝缘层和p型化合物半导体层上的透明电极层; 覆盖所述透明电极层的反射绝缘层，以将来自所述有源层的光反射离开所述支撑基板; 覆盖反射绝缘层的p电极; 并且在n型化合物半导体层的顶部上形成n电极。 p电极通过绝缘层与透明电极层电连接。

公开(公告)号：US20110114969A1

公开(公告)日：2011-05-19

申请号：US12917937

申请日：2010-11-02

Applicant: Chung Hoon LEE ,  Sum Geun LEE ,  Sang Ki JIN ,  Jin Cheol SHIN ,  Jong Kyu KIM ,  So Ra LEE

Inventor： Chung Hoon LEE ,  Sum Geun LEE ,  Sang Ki JIN ,  Jin Cheol SHIN ,  Jong Kyu KIM ,  So Ra LEE

IPC: H01L33/46 ,  H01L33/08

CPC classification number: H01L33/46 ,  H01L33/0079 ,  H01L33/60 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2924/00014

Abstract: An exemplary embodiment of the present invention discloses a light emitting diode chip including a substrate, a light emitting structure arranged on the substrate, the light emitting structure including an active layer arranged between a first conductive-type semiconductor layer and a second conductive-type semiconductor layer, and a distributed Bragg reflector to reflect light emitted from the light emitting structure. The distributed Bragg reflector has a reflectivity of at least 90% for light of a first wavelength in a blue wavelength range, light of a second wavelength in a green wavelength range, and light of a third wavelength in a red wavelength range.

Abstract translation: 本发明的一个示例性实施例公开了一种发光二极管芯片，其包括基板，布置在基板上的发光结构，发光结构包括布置在第一导电型半导体层和第二导电型半导体之间的有源层 层和分布布拉格反射器以反射从发光结构发射的光。 分布布拉格反射器对于蓝色波长范围内的第一波长的光，绿色波长范围内的第二波长的光和红色波长范围内的第三波长的光具有至少90％的反射率。

公开(公告)号：US06795287B2

公开(公告)日：2004-09-21

申请号：US10342487

申请日：2003-01-15

Applicant: Chan Ki Kim ,  Hong Woo Ryu ,  Jin Yang No ,  Bo Soon An ,  Seok Jin Lee ,  Jin Cheol Shin

Inventor： Chan Ki Kim ,  Hong Woo Ryu ,  Jin Yang No ,  Bo Soon An ,  Seok Jin Lee ,  Jin Cheol Shin

IPC: H02H1100

CPC classification number: H02P9/105

Abstract: A static excitation system that can eliminate shaft vibrations of a generator and overvoltage when it is underexited is provided. The static excitation system includes an initial excitation equipment; a step-down transformer; a 3-phase diode bridge; a boost chopper provided with a transistor and a resister, and maintaining DC voltage to be constant; a DC chopper provided with a plurality of transistors and diodes, and supplying DC power to a rotor of a generator; a boost controller for controlling the boost chopper; and a DC chopper controller for controlling the DC chopper, wherein, overvoltage applied on the excitation system when underexcited is eliminated owing to the boost chopper preventing any changes at an output terminal of the generator from being transferred to the excitation system, and maintaining the excitation DC voltage to be constant; and also owing to the DC chopper which is capable of 4 quadrant operation, hereby pole slipping of the generator can be prevented.

Abstract translation: 提供了一种能够消除发生器的轴振动并且在其不足时会产生过电压的静态励磁系统。 静态励磁系统包括初始励磁设备; 降压变压器; 三相二极管桥; 提供有晶体管和电阻器的升压斩波器，并且保持DC电压恒定; 设置有多个晶体管和二极管的直流斩波器，向发电机的转子供给直流电力; 用于控制升压斩波器的升压控制器; 以及用于控制直流斩波器的直流斩波控制器，其中，由于升压斩波器消除了由于升压斩波器而在激励系统上施加的过电压，从而防止发电机的输出端子上的任何变化被传送到励磁系统，并保持励磁 直流电压恒定; 并且由于能够进行4象限操作的直流斩波器，因此可以防止发电机的极滑动。