고주파 전자식 안정기의 새로운 제어방법

Abstract

This paper presents a new control method for the high frequency electronic ballast which is operated with raw rectified dc link using diode bridge. For the commercial electronic ballast, proper ac input power factor and crest factor of the lamp current are reauired The most ballast, therefore, has a active or passive power factor collection(PFC) circuit With the proposed method, it can be achieved simultaneously that grater than 0.9 of input power factor and less than 1.85 of lamp current crest factor without any PFC circuit In this paper, the proposed ballast control scheme and the experimental results for the application to the fluorescent lamp are described.