High Power Factor for Non-isolated LED Power
Because energy saving and environment protection has been emphasized significantly in the world recently,LED has become a promising light source for replacing conventional lighting systems,such as fluorescent and incandescent lights.This paper presents a new non-isolated buck LED driver with integrated power factor correction (PFC) function and no E-Cap solution that shows better performance,high reliability and extremely simple circuit.Another non-isolated Buck-boost LED driver based on primary side regulation (PSR) technique is proposed in high output,low current application which is simple and has better efficiency than Flyback.The testing results verify advantages of these new high power factor non-isolated LED drivers.
LED driver PFC Non-isolated Buck Buck-boost high efficiency
Jin Zhu Yupu Tao
Fairchild Semiconductor Hangzhou Branch, Jiahua International Business Centre 15 Hangda Road Xihu di Fairchild Semiconductor Shanghai Branch, Unit01-04, 16F, Eco city, No.1788 West Nanjing Road, Shangh
国际会议
9th China International Forum on Solid State Lighting(第九届中国国际半导体照明论坛)
广州
英文
259-261
2012-11-05（万方平台首次上网日期，不代表论文的发表时间）