具高功因與高效率特性之液晶電視電源供應器

LCD TV Power Supply with High Power Factor and High Efficiency Features

吳勝捷(Sheng-Chieh Wu)

指導教授 ： 邱煌仁

中原大學/工學院/電機工程研究所/碩士(2006年)

https://doi.org/10.6840/cycu200600714

摘要

中文摘要

近年來，電子化社會已經快速轉型為多媒體資訊化社會，大尺寸液晶電視因此成為今日最快速成長的市場之一。具有高效率與高功率因數特性之電源供應器，係此類商業用途所必須的。本論文研究一種應用於液晶電視之高效能電源模組。該電源模組係由功率因數修正器，和具有零電壓切換特性之串聯諧振轉換器所構成，來提供液晶電視之背光電路與系統模組電源。功率因數修正器的加入，降低了該電源模組之輸入電流諧波，並提高功率因數。ㄧ部雛型電路被設計與實現，其實驗波形驗證了所提出方法的可行性，結果令人滿意。
關鍵字：液晶電視、功率因數修正器、零電壓切換、串聯諧振轉換器

關鍵字

液晶電視 ； 零電壓切換 ； 功率因數修正器 ； 串聯諧振轉換器

並列摘要

Abstract

In recent years, the electronic society has been reshaped rapidly into a multimedia information society. Large scale of LCD TV is one of the fastest growing markets today. A power supply with high efficiency and high power factor features is needed for these commercial applications. In this thesis, we study a high performance power module for LCD TV. The power module consists with a power factor corrector and a series-resonant converter with zero-voltage-switching features. It supplies power for backlight circuit and system modules of LCD TV. The addition of the power factor corrector reduces source current harmonics and achieves high power factor. A laboratory prototype was designed and implemented. The experimental waveforms were given to verify the feasibility of the proposed method. The results are satisfactory.
Keywords: LCD TV, Power Factor Corrector, Zero-Voltage-Switching, Series-Resonant Converter

並列關鍵字

Series-Resonant Converter ； LCD TV ； Zero-Voltage-Switching ； Power Factor Corrector

參考文獻

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