一种用于大功率路灯应用、具有低直流母线电压应力的无电解电容PFC LED驱动器

This article presents a single-stage, soft-switching, high power factor, flicker-free LED driver without any electrolytic capacitors for streetlighting application. The proposed LED driver consists of a buck–boost type power-factor correction (PFC) circuit integrated with an asymmetric half-bridge LLC resonant converter. The buck–boost type PFC circuit provides a high power factor, low input curre...