標題: Sub-1V Input Single-Inductor Dual-Output (SIDO) DC-DC Converter with Adaptive Load-Tracking Control (ALTC) for Single-Cell-Powered System
作者: Huang, Ming-Hsin
Tsai, Yu-Nong
Lee, Yu-Huei
Wang, Shih-Jung
Chen, Ke-Horng
Lin, Ying-Hsi
Ma, Gin-Kou
電控工程研究所
Institute of Electrical and Control Engineering
公開日期: 2009
摘要: In this paper, a sub-1V input single-inductor dual-output (SIDO) DC-DC converter with an adaptive load-tracking control (ALTC) technique is proposed for single-cell-powered portable devices. The ALTC technique adaptively and accurately adjusts storage charge in form of the inductor current according to actual load condition without wasting surplus charge and increasing cross-regulation through the use of minimized the number of switch and optimum current sequence. A current-mode ring oscillator with a self-bias current source (SBCS) circuit is proposed to replace conventional startup oscillator to produce a nearly constant system clock. The test chip was fabricated by TSMC 0.25 mu m 2.5 V/5 V BCD process and experimental results show a high efficiency of 92 % and a cross- regulation smaller than 10 mV.
URI: http://hdl.handle.net/11536/28087
ISBN: 978-1-4244-4355-0
ISSN: 1930-8833
期刊: 2009 PROCEEDINGS OF ESSCIRC
起始頁: 269
結束頁: 272
顯示於類別:會議論文