標題: Interleaving Energy-Conservation Mode (IECM) Control in Single-Inductor Dual-Output (SIDO) Step-Down Converters With 91% Peak Efficiency
作者: Lee, Yu-Huei
Yang, Yao-Yi
Wang, Shih-Jung
Chen, Ke-Horng
Lin, Ying-Hsi
Chen, Yi-Kuang
Huang, Chen-Chih
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: Current interleaving;DC-DC converter;energy delivery path;output voltage ripple;power conversion efficiency;single-inductor dual-output (SIDO) converter;ultra-wide band (UWB) system
公開日期: 1-四月-2011
摘要: The proposed single-inductor dual-output (SIDO) converter with interleaving energy-conservation mode (IECM) control is designed using 65 nm technology to power the ultra-wide band (UWB) system. The energy-conservation mode (ECM) control generates four different energy delivery paths for dual buck outputs with only one inductor. In addition, the superposition technique is used to achieve a minimized inductor current level. The average inductor current is equal to the summation of two output loads. Moreover, the IECM control activates the interleaving operation through the current interleaving mechanism to provide large driving capability as well as to reduce the output voltage ripple. As a result, 91% peak efficiency is derived and the output voltage ripple appears notably minimized by 50% using current interleaving at heavy load. The test chip occupies 1.44 mm(2) in 65 nm CMOS and integrates with a three-dimensional (3-D) architecture for inductor integration.
URI: http://dx.doi.org/10.1109/JSSC.2011.2108850
http://hdl.handle.net/11536/9085
ISSN: 0018-9200
DOI: 10.1109/JSSC.2011.2108850
期刊: IEEE JOURNAL OF SOLID-STATE CIRCUITS
Volume: 46
Issue: 4
起始頁: 904
結束頁: 915
顯示於類別:期刊論文


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