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博碩士論文 etd-0623103-184632 詳細資訊
Title page for etd-0623103-184632
論文名稱
Title
方波電流驅動之複金屬燈操作特性研究
Investigation on Operating Characteristics of Metal Halide Lamps Driven by Square Wave Current
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
51
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2003-05-23
繳交日期
Date of Submission
2003-06-23
關鍵字
Keywords
操作頻率、電子安定器、發光效率、音頻共振、複金屬燈
Metal halide lamp, electronic ballast, luminous efficacy, acoustic resonance, operating frequency
統計
Statistics
本論文已被瀏覽 5655 次,被下載 34
The thesis/dissertation has been browsed 5655 times, has been downloaded 34 times.
中文摘要
本論文主旨為研究小功率之複金屬燈(35W,70W,150W)操作特性,其中包含了音頻共振、發光效率與穩態操作之電特性。所建立之實驗測試系統以方波電流驅動複金屬燈,其頻率、波幅與換流器之怠滯時間皆可獨立調變,頻率範圍可從50Hz至50kHz,調變波幅可調節燈管功率,怠滯時間最低為0.4us。實驗結果顯示發光效率皆隨著燈管的操作頻率上升而微幅下降,而且頻率越高變動的幅度越不明顯﹔另一方面,當燈管功率下降時,發光效率也會隨之降低。在測試音頻共振時,發現燈管弧光之不穩定與換流器之怠滯時間的增加明顯惡化。經由本論文的研究可對複金屬燈的穩態操作特性有更深入的了解,提供電子安定器的設計可以遵循的憑據。
Abstract
The operating characteristics of small-wattage metal halide lamps (35W, 70W, and 150W) are investigated. Included are acoustic resonance, luminous efficacy, and electrical characteristics at steady state. A laboratory electronic ballast is built to operate metal halide lamps with square-wave currents in a frequency range from 50 Hz up to 50 kHz. The operating frequency, amplitude and dead-time can be adjusted independently. Experimental results show that the luminous efficiency decreases slightly as the operating frequency increases but deteriorates considerably as the lamp power is reduced. By examining the acoustic resonance spectra, it is found that the lamp arc instability is highly related to the dead-time of the inverter. The investigated results provide useful information for the design of the electronic ballasts.
目次 Table of Contents
目 錄
中文摘要 Ⅰ
英文摘要 Ⅱ
目錄 Ⅲ
圖目錄 Ⅴ
第一章 簡介 1
1-1 研究動機 1
1-2 論文大綱 2
第二章 複金屬燈工作特性 3
2-1 工作特性 3
2-1-1 高啟動電壓 3
2-1-2 音頻共振 3
2-1-3 發光特性 5
2-1-4 暫態過渡 6
2-2 弦波與方波驅動 7
2-3方波電流驅動測試電路 10
2-3-1 電路架構 10
2-3-2 點火電路 10
2-3-3 頻率與怠滯時間調整 12
第三章 音頻共振 14
3-1音頻共振發生時之燈管特性 15
3-2 音頻共振之量測 21
3-2-1 音頻共振量測步驟 21
3-2-2 怠滯時間時對音頻共振頻率分佈之影響 22
第四章 發光效率 27
4-1 發光特性之量測 27
4-2 光譜能量分佈 29
4-2-1 不同品牌及不同額定功率之光譜能量分佈 29
4-2-2 操作頻率對光譜能量分佈之影響 30
4-2-3 燈管功率對光譜能量分佈之影響 31
4-2-4 怠滯時間對光譜能量分佈之影響 32
4-3 發光效率的影響 33
4-3-1 頻率對發光效率的影響 34
4-3-2 燈管功率對發光效率的影響 36
第五章 電特性 39
5-1功率對燈管特性之影響 39
5-2頻率對燈管特性之影響 46
第六章 結論與未來研究方向 48
參考文獻 50

圖表目錄
圖2-1 複金屬燈音頻共振頻率分佈圖 4
圖2-2 複金屬燈特徵頻率分佈圖 5
圖2-3 複金屬燈光譜能量分佈 6
圖2-4 不同形式驅動方式之光譜能量分佈 8
圖2-5 音頻共振時之光譜能量分佈 8
圖2-6 弦波驅動之燈管電壓、電流與瞬時功率 9
圖2-7 方波驅動之燈管電壓、電流與瞬時功率 9
圖2-8 複金屬燈方波電流測試電路 10
圖2-9 點燈初期之電壓與電流波形 11
圖2-10 點火高壓脈衝之波形 11
圖2-11 燈管操作於50Hz之穩態電壓與電流波形 13
圖2-12 燈管操作於50kHz之穩態電壓與電流波形 13
圖3-1 複金屬燈低頻操作時之燈管電壓、電流與功率波形 15
圖3-2 複金屬燈高頻操作時之燈管電壓、電流與功率波形 16
圖3-3 複金屬燈燈管電壓與電流之波包累計波形 18
圖3-4 較大時間刻度量測之複金屬燈燈管電壓波形 19
圖3-5 複金屬燈音頻共振之弧光變動情形 20
圖3-6 複金屬燈音頻共振分佈之量測流程 22
圖3-7 PHILIPS CDM-T 150W/830複金屬燈之音頻共振分佈 24
圖3-8 PHILIPS CDM-T 70W/830複金屬燈之音頻共振分佈 25
圖3-9 PHILIPS CDM-T 35W/830複金屬燈之音頻共振分佈 26
圖4-1 複金屬燈發光特性之量測流程 28
圖4-2 不同品牌及不同額定功率之光譜能量分佈 30
圖4-3 PHILIPS燈管於不同操作頻率下之光譜能量分佈 31
圖4-4 全功率與半功率之光譜能量分佈 32
圖4-5 複金屬燈於不同怠滯時間之光譜能量分佈 33
圖4-6 複金屬燈於不同怠滯時間對發光效率之影響 34
圖4-7 操作頻率與複金屬燈發光效率之關係 35
圖4-8 複金屬燈於調光時之發光效率變化 37
圖4-9 不同額定功率複金屬燈於調光時之發光效率比較 38
圖5-1 複金屬燈於不同功率下之燈管電壓與電流波形 40
圖5-2 複金屬燈燈管電壓對功率之變化曲線 41
圖5-3 複金屬燈燈管電流對功率之變化曲線 42
圖5-4 PHILIPS燈管操作功率與燈管等效電阻之關係圖 44
圖5-5 OSRAM燈管操作功率與燈管等效電阻之關係圖 45
圖5-6 操作頻率與燈管等效電阻之關係圖 47
參考文獻 References
參考文獻
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