基于选择性调光的多通道LED驱动器效率提升

There is a widespread application of selective dimming of multichannel LED drivers. In this article, two new selective dimming methods to improve the efficiency of multichannel LED drivers are proposed. The proposed methods are based on a two-stage multichannel LED driver that consists of an ac–dc boost power factor correction converter at its front-end and a dc–dc non-resonant converter at its se...