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	A high power switch-mode LED driver with an efficient current sensing scheme
	Leung, Wing Yan ; Man, Tsz Yin ; Zhang, Dongwei ; He, Jin ; Chan, Mansun
	2010
英文摘要	A high power buck-boost switch-mode LED driver delivering a constant 350 mA with a power efficient current sensing scheme is presented in this paper. The LED current is extracted by differentiating the output capacitor voltage and maintained by a track and hold. The circuit has been fabricated with a standard 0.35-??m AMS CMOS process. Measurement results demonstrated that the power-conversion efficiency of the design is over 90% with a line regulation of 8%/V for an input voltage of 3.3 V and a current output between 200 mA and 350 mA. Copyright ? 2010 American Scientific Publishers All rights reserved.; EI; 0
语种	英语
DOI标识	10.1166/jolpe.2010.1063
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/330223]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Leung, Wing Yan,Man, Tsz Yin,Zhang, Dongwei,et al. A high power switch-mode LED driver with an efficient current sensing scheme. 2010-01-01.

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