RGB-LED背光源數位控制系統設計

The Design of Digital Control System for RGB-LED Backlighting

黃明偉(Ming-Wei Huang)

指導教授 ： 何金滿

中原大學/工學院/電機工程研究所/碩士(2010年)

https://doi.org/10.6840/cycu201000336

摘要

論文主要研究內容為RGB-LED背光源之數位控制系統。本研究之RGB-LED背光源數位控制系統包括軟體發展環境規劃、硬體設計規劃與整體功能驗證等事項。軟體部分採用系統晶片內建的8052微控制器、編輯軟體(Source-Insight)、編譯軟體(Keil C)、燒錄器(ISP Board)等進行程式開發。硬體部分包含RGB-LED之驅動電路設計與電路元件選用。控制方法係利用SOC晶片內建之8052微控制器產三組數位PWM訊號控制RGB-LED驅動電路使RGB-LED陣列混出各種顏色的可見光。最後本文藉由開發具自動漸進調光功能之程式進行整體功能驗證。

關鍵字

數位 ； PWM ； RGB-LED ； 背光 ； 調光

並列摘要

The objective of this thesis is to design a Digital Control System for RGB-LED backlighting. This study is mainly comprised of software development environment planning, hardware design, and verification of the system functions. The design tools employed for the software include SOC with 8052 MCU, Source-Insight, Keil C, and an ISP Board. The design of hardware involves an RGB-LED array and an RGB-LED driving circuit, in which the electrical design is derived from the requisite specifications whilst involving a designed integrated layout. The control function of the system is produced by SOC with 8052 MCU to produce visible light with full-coloring. Finally, the Digital Control System for the RGB-LED backlighting was verified via the development of an automatic cycling function for the RGB-LED backlighting.

並列關鍵字

RGB ； LED ； Backlighting

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