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題名 | 半橋串聯諧振式變頻器應用於螢光燈之研究 |
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作 者 | 楊瑞錶; 林家傑; | 書刊名 | 中華工商專校學報 |
卷期 | 12 1995.12[民84.12] |
頁次 | 頁50-59 |
分類號 | 448.42 |
關鍵詞 | 半橋串聯諧振式變頻器; 螢光燈; |
語文 | 中文(Chinese) |
中文摘要 | 本文研究目的在如何使日光燈的輸入電流諧波成份降低、功率因數提高、閃爍度 降低、電氣效率提高及延長燈管壽命。一種根據燈管電氣特性,利用半橋串振變頻器將直流 電壓以脈波寬度調變技術切割成高頻交流信號,作為燈管起動以及穩定發光之電路。而此直 流電壓,乃是經由升壓式交流變直流的轉換器得到,其中並利用功率因數修正電路以提高功 率因數。 由實體製造可見,本文所提之電子式安定器在操作頻率為 31KHz 時,其功率因數 約 0.994,峰值因數為 1.32,效率為 82.1 %,總諧波失真為 7.1 %,能符合現階段需求 ,同時並可作為未來發展之基準點。 |
英文摘要 | The goal of this thesis is to improve the performance of lamp ballast. The perfor mance includes the following indexes:the total harmonic distortion of input current, power factor, light flicker, system efficiency and fluorescent lamp life. According to the electrical characteristics of fluorescent lamp, a high frequency AC signal is in verted from DC source by a half bridge with series resonant inverter used pulse width modulation. The DC source is gererated by using a boost AC/DC converter in which a power factor correction circuit is adapted. When the operating frequency of ballast is 31KHz, the power factor, crest factor, efficiency and total harmonic distortion are respectively 0.994, 1.32, 82.15 and 7.1%. These experimental results show that the proposed electronic ballast is able to meet the present goal and provid es a helpful basis for further study. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。