一种基于带无损缓冲电路的Boost-Flyback PFC变换器的单开关AC-DC LED驱动器

A single-switch ac-dc light-emitting-diode (LED) driver based on boost-flyback power factor correction (PFC) converter with a lossless snubber is proposed. In the proposed LED driver, the boost PFC module is designed to be operated in the discontinuous-conduction mode to achieve a high power factor. The dc-dc flyback module is designed to provide input-output electrical isolation to improve safety...