一种基于源驱动控制方案的新型原边控制通用输入AC-DC LED驱动器

A novel primary-side controlled universal-input ac–dc LED driver based on the source-driving control scheme is proposed in this paper, which employs low-voltage control mosfet $M_{2}$ to drive high-voltage power mosfet $M_{1}$ without an auxiliary winding commonly used in the conventional primary-side controlled scheme. The proposed control IC adopts minimum voltage detection circuit to monitor ...