透過您的圖書館登入
IP:3.23.101.91
  • 學位論文

光功率自動控制驅動電路系統設計應用於白光發光二極體

Driver Circuit System Design for White Light Emitting Diode with Automatic Photo Power Control

指導教授 : 孫台平
若您是本文的作者,可授權文章由華藝線上圖書館中協助推廣。

摘要


本論文為設計一光功率自動控制驅動電路系統(Automatic Photo Power Control,APC),使發光二極體(LED)在溫度變化時光功率能穩定。當LED電功率穩定時,光功率仍會隨溫度上升而下降,故本論文延續自動電功率控制系統架構(Automatic Electrical Power Control,AEC),增加光功率補償電路使LED在不同溫度下光功率穩定,將紅藍綠三顏色混色為白光,並證實工作溫度從0.5℃至85℃可以維持光功率穩定。本系統與其他電路最大差異在於不需要光偵測器偵測LED改變補償電壓來做迴授控制便能達到光功率穩定。

並列摘要


This thesis presents a driver circuit system design for LED with automatic photo- power control (APC). The automatic photo-power control can reduce photo-power variation without using photodiode. The APC system design is based on automatic electrical power control (AEC) system, which is added a temperature compensation circuit, then it can maintain electrical power control or photo-power. The APC system is compensated without photo diode at the operation temperature from 0.5℃ to 85℃.

參考文獻


[1]Schanda János, ”LED PHOTOMETRY AND COLORIMETRY”.
[2]H. J. Round, ”A note on carborundum,” Electrical World, vol. 49, page 309, 1907.
[3]郭浩中,賴芳儀,郭守義, ”LED原理與應用,”五南出版社, 2009.
[4]Nick Holonyak, ”From Transistors to Light Emitters,” IEEE Journal on
Selected Topics in Quantum Electronics 6, 1190-1200, 2000.

延伸閱讀