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 |