| Summary: | 碩士 === 國立臺灣海洋大學 === 電機工程學系 === 99 === This study is using IC6561 PFC converter circuit and IC6574 resonant Inverter circuit with in order to meet the high power factor electronic ballast, extended lamp life, improved luminous efficiency, and dimming Required. The method for this thesis uses frequency modulation, is also one of commonly methods for dimming light, it can enhance the operating frequency, the resistance is increased when resonant inductor. The current flowing through the resonant inductor will drop and achieve brightness adjustable. The frequency dimming technology restrictions, the design should pay attention to the setting and dimming frequency protection circuit interference
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