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研究生:呂建興
研究生(外文):Chien-Hsing Lu
論文名稱:具色彩調變及趨近於同步顏色切換功能之LED驅動晶片設計
論文名稱(外文):LED Driver IC Design for Color Modulation and Approximately Synchronous Color Change
指導教授:李文達李文達引用關係
指導教授(外文):Wen-Ta Lee
口試委員:劉遠楨黃育賢
口試委員(外文):Yuan-Chen LiuYuh-Shyan Hwang
口試日期:2012-01-19
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:電腦與通訊研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:48
中文關鍵詞:同步雙時脈脈波寬度調變調光脈波產生器
外文關鍵詞:SynchronizationTwo clock domainPWMDimmingPulse generator
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由於發光二極體(LED)具有體積小、壽命高、色域廣且環保等眾多優點,LED已廣泛地應用於現代,為此本論文提出一種可應用於紅、綠、藍三色LED,且能多組趨近於同步作顏色切換之積體電路設計。在作法上以AC弦波轉成60Hz方波作為LED驅動晶片切換顏色的參考訊號,採用雙時脈領域設計方式,並以脈波寬度調變(PWM)技術作為紅、綠、藍三色 LED混色的調光方式。此外,我們所提出的電路架構,也以脈波產生器所產生之脈波作為切換顏色的觸發訊號,來達成多組晶片具有趨近於同步作顏色切換的功能,即能使人眼視覺上有同時切換顏色的視覺效果。
本架構使用Xilinx FPGA Spartan 3E-250來驗證整個電路的可行性及其穩定性。最後,我們以TSMC 0.18μm 1P6M元件庫作合成,其晶片面積大小為790μm x 790μm,輸出埠可驅動紅、綠、藍三色LED具有9Bits色階之變化,未來配合晶片外部之60Hz方波,可供現代彩色照明之應用。


Due to LED has many advantages, including small volume, long life, wide color domain and environmental material, LED has been widely applied to the modern society. This thesis presents a chip design of three color RGB-LED which has more groups and more near to the synchronization of color change. In practically AC string wave is changed into 60Hz square wave as the reference signals for the color change of LED Driver IC. Two clock domain and PWM are applied as three color RGB-LED dimming of LED color mixing.
In addition, our circuit structure makes the pulse produced by the pulse generator as a trigger signal of color change, to reach the multiple sets of chip, which can approach to the synchronization of color change. This circuit structure is able to make the human visual system generate a visual effect of synchronization of color change.
The Xilinx FPGA Spartan 3E-250 system is used to verify the viability and stability of the proposed circuit. Finally, this circuit has been designed with TSMC 0.18μm 1P6M process. The chip size is 790μm x 790μm; the output ports can drive the three color RGB-LED for color change in 9Bits. In the future, with external 60Hz square wave of the chip, this driver IC can be applied to modern lighting system.


中文摘要 i
英文摘要 ii
誌謝 iv
目錄 v
表目錄 vii
圖目錄 viii
第一章 緒論 1
1.1 前言 1
1.2 研究動機與目的 2
1.3 論文章節編排 2
第二章 研究內容與分析 3
2.1 LED之應用 3
2.2 光與色彩之探討 5
2.2.1 光學特性 5
2.2.2 色彩學 6
2.3 脈波寬度調變之理論及應用於LED 9
2.3.1 脈波寬度調變之理論 9
2.3.2 脈波寬度調變應用於LED 12
2.4 多組LED模組趨近於同步顏色切換功能之設計方法探討 12
2.4.1 概要 12
2.4.2 整流電路 13
2.4.3 多組LED模組趨近於同步顏色切換功能之設計方法 14
第三章 具色彩調變及趨近於同步顏色切換功能之LED驅動電路設計 16
3.1 LED驅動晶片功能制定 16
3.2 重置電路設計方法 18
3.3 色彩調變電路 19
3.4 趨近於同步顏色切換功能之控制電路 20
3.4.1 跨越clock domain之電路設計 20
3.4.2 脈波產生器之電路設計 20
3.4.3 趨近於同步顏色切換功能之頻率匹配 21
3.4.4 趨近於同步顏色切換功能之電路設計 22
3.5 具色彩調變及趨近於同步顏色切換功能之LED驅動電路實現 25
第四章 具色彩調變及趨近於同步顏色切換功能驅動電路之硬體架構驗證 27
4.1 PWM之模擬與結果 27
4.2 趨近於同步顏色切換功能之模擬與結果 28
4.3 FPGA模擬與結果 29
4.4 積體電路設計流程 40
4.5 晶片腳位定義 42
4.6 晶片合成與佈局 42
第五章 結論 46
參考文獻 47


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