標題: 93% Efficiency and 0.99 Power Factor in Pseudo-linear LED Driver
作者: Chiu, Shao-Wei
Kuo, Chun-Chieh
Chuang, Kai-Cheng
Yang, Wen-Hau
Chen, Ke-Horng
Wey, Chin-Long
Lin, Ying-Hsi
Lin, Jian-Ru
Tsai, Tsung-Yen
Chen, Jui-Lung
交大名義發表
National Chiao Tung University
關鍵字: pseudo-linear LED driver;power factor (PF);boost switching regulator (SWR);total harmonic distortion (THD)
公開日期: 1-Jan-2016
摘要: The proposed pseudo-linear LED driver can effectively solve the serious flicker in conventional linear LED driver (LLD). Besides, it has good electromagnetic interference (EMI) performance similar to that in conventional LLD at high AC input voltage. In the meanwhile, it has high power factor (PF) similar to boost switching regulator (SWR) LED driver at low AC input voltage. Furthermore, owing to the combination of line filter and the active full bridge rectifier, the pseudo-linear LED driver has a compact solution and high efficiency. The test chip was fabricated in 0.5 mu m 500V LDMOS process. Experimental results show 93% high efficiency, 6% total harmonic distortion (THD), and 0.99 PF at the power of 7W.
URI: http://hdl.handle.net/11536/146554
期刊: 2016 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE (A-SSCC)
起始頁: 53
結束頁: 56
Appears in Collections:Conferences Paper