有源高功率因数电子镇流器

Active High Power Factor Electronic Ballast

为了提高电子整流器的功率因数,讨论了高性能电子镇流器系统必须具备的电路结构和功率因数校正电路(PFC)的基本原理。介绍了一种以L6561为功率因数校正控制器的有源高功率因数电子镇流器,说明该镇流器的电路组成及L6561的主要特点,并给出详细的电路原理图及主要元器件的选型。

In order to improve power factor of electronic ballast, this paper discusses the essential circuit structure for a high performance electronic ballast system and fundamental circuits of Power Factor Correction（PFC）. The active high power factor electronic ballast which is based on 1.6561 of power factor correction is introduced, and the paper illustrates circuit struc ture and the main characters of 1.6561, the detailed circuit principle drawing and the selection of the elements are given.