Title :
Dynamic dead-time controller for synchronous buck DC-DC converters
Author :
Yan, Weiqing ; Pi, C. ; Li, Wenyuan ; Liu, Richard
Author_Institution :
Dept. of Microelectron., Fudan Univ., Shanghai, China
Abstract :
A dynamic dead-time controller based on a novel dead-time detector for synchronous buck DC-DC converters is proposed. With this controller, the dead time of power converters can be dynamically optimised under any load condition. A voltage mode buck converter with this controller has been designed using Chartered 0.35 ??m CMOS process. Experimental results show that the power efficiency can be improved by 6.5% with the proposed technique.
Keywords :
CMOS integrated circuits; DC-DC power convertors; chartered CMOS process; dead-time detector; dynamic dead-time controller; power converters; size 0.35 mum; synchronous buck DC-DC converters; voltage mode buck converter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2651
