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博碩士論文 etd-0121103-163026 詳細資訊
Title page for etd-0121103-163026
論文名稱
Title
零熾熱電流啟動之螢光燈電子安定器
Electronic Ballast for Starting Fluorescent Lamps with Zero Glow 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
66
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
2003-01-14
繳交日期
Date of Submission
2003-01-21
關鍵字
Keywords
降升壓轉換器、電子安定器、熾熱電流、螢光燈、串聯共振換流器、功因修正器
glow current, electronic ballast, series-resonant inverter, buck-boost converter, power-factor-corrector, Fluorescent lamp
統計
Statistics
本論文已被瀏覽 5681 次,被下載 6232
The thesis/dissertation has been browsed 5681 times, has been downloaded 6232 times.
中文摘要
本論文提出一零熾熱電流啟動之螢光燈電子安定器,本安定器整合一降-升壓轉換器作為功因修正器,並在降-升壓電感的鐵芯加繞兩組輔助線圈為燈絲加熱。電路在不增加主動開關的情形下,藉由控制串聯共振轉換器之切換開關,使共振電路在預熱階段不動作,可避免燈管兩端產生跨壓,以消除燈管的熾熱電流。當燈絲達到適當的釋放溫度時,隨即啟動串聯共振換流器,點亮燈管並穩定地工作於額定功率下。本文以一T8-40W快速啟動型螢光燈之電子安定器雛型進行驗證,經實驗測試得到令人滿意的結果。
Abstract
This thesis proposes a single-stage high-power-factor electronic ballast with series-resonant inverter for rapid-start fluorescent lamps with zero glow current during preheating period. A buck-boost converter is integrated into the ballast as the power-factor-corrector. Two auxiliary windings are wound on the same core of the buck-boost inductor for filament heating.
During the preheating period, the buck-boost converter is initiated while the series-resonant inverter is disabled by controlling the corresponding active power switches. Due to zero voltage across the lamp, the glow current can be effectively eliminated. As the filaments reach appropriate emission temperature, the series-resonant inverter is activated. The lamp is then ignited and consequently operated at the rated lamp power.
Circuit analyses and experimental tests of the proposed preheating control scheme are carried out on an electronic ballast for a T8-40W rapid-start fluorescent lamp.
目次 Table of Contents
摘要 I
英文摘要 II
目 錄 III
圖表目錄 V
第一章 簡介 1
1-1 研究動機 1
1-2 本文大綱 3
第二章 螢光燈之電子安定器 5
2-1 螢光燈之等效模型 5
2-1-1 預熱特性分析 6
2-1-2 穩態等效模型 11
2-2 影響螢光燈壽命之因素 12
2-2-1 燈絲電流 12
2-2-2 峰值因數 12
2-2-3 環境溫度 13
2-2-4 點滅次數 13
2-2-5 熾熱電流 13
2-3 雙級降升壓式高功因電子安定器 14
2-3-1 功因修正電路分析 14
2-3-2 D類共振換流器 20
2-4 單級降升壓式高功因電子安定器 22
第三章 零熾熱電流啟動單級高功因電子安定器 24
3-1 消除熾熱電流之電路架構 24
3-1-1 預熱啟動路徑開路法之電路架構 25
3-1-2 控制電路程序設定快速啟動流程 26
3-2 等效電路及工作模式分析 27
3-2-1 預熱階段 27
3-2-2 點火階段 30
3-2-3 穩態階段 31
3-2-4 工作模式綜合分析 39
第四章 電路參數設計 40
4-1 設計流程 40
4-2 特性方程式 42
4-2-1 降升壓轉換器儲能電感Lp 42
4-2-2 變壓器圈數比n值 43
4-2-3 Vdc、Cdc與預熱頻率 44
4-2-4 共振電路參數Cs、Cf、Ls 46
第五章 應用實例及實驗量測 48
5-1 設計實例 48
5-1-1 螢光燈及電子安定器規範 48
5-1-2 電路參數計算與選用 50
5-2 控制電路設計 54
5-3 實測結果 56
5-3-1 燈管啟動暫態 56
5-3-2 燈管穩態工作情形 57
5-3-3 燈絲暫態工作情形 60
第六章 結論與未來研究方向 62
參考文獻 64
參考文獻 References
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