Investigation of the Integrated High Power Factor Electronic Ballast with Dimming Characteristics

碩士 === 國立雲林科技大學 === 電機工程技術研究所 === 86 === This paper introduces a simple method to design a low cost,high power factor electronic ballast for fluorescent lamps.The proposed electronic ballast integrates the power factor corrector (PFC) and the Class D inverter.The power factor corrector(PFC) with au...

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Bibliographic Details
Main Authors: Chang Cheng-hsiung, 張政雄
Other Authors: Chih--chiang Hua
Format: Others
Language:zh-TW
Published: 1998
Online Access:http://ndltd.ncl.edu.tw/handle/83633294163274128008
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Summary:碩士 === 國立雲林科技大學 === 電機工程技術研究所 === 86 === This paper introduces a simple method to design a low cost,high power factor electronic ballast for fluorescent lamps.The proposed electronic ballast integrates the power factor corrector (PFC) and the Class D inverter.The power factor corrector(PFC) with auto current shaping technique and the voltage-fed Class D inverter can be implemented with simplicity,compactness and low cost.Furthermore,the influence of the proposed scheme by the fluctuation of the utilily voltage was found and the difference of dimming characteristics with frequency control and duty-cycle control was investigated and compared.The proposed controller for high power factor electronic ballast was tested and verified by simulations and experiments.