標題: Single-Inductor Multi-Output (SIMO) DC-DC Converters With High Light-Load Efficiency and Minimized Cross-Regulation for Portable Devices
作者: Huang, Ming-Hsin
Chen, Ke-Horng
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: Cross-regulation;single-inductor multi-output (SIMO) DC-DC converter;SoC system
公開日期: 1-四月-2009
摘要: A load-dependant peak-current control single-inductor multiple-output (SIMO) DC-DC converter with hysteresis mode is proposed. It includes multiple buck and boost output voltages. Owing to the adaptive adjustment of the load-dependant peak-current control technique and the hysteresis mode, the cross-regulation can be minimized. Furthermore, a new delta-voltage generator can automatically switch the operating mode from pulse width modulation (PWM) mode to hysteresis mode, thereby avoiding inductor current accumulation when the total power of the buck output terminals is larger than that of the boost output terminals. The proposed SIMO DGDC converter was fabricated in TSMC 0.25 mu m 2P5M technology. The experimental results show high conversion efficiency at light loads and small cross-regulation within 0.35%. The power conversion efficiency varies from 80% at light loads to 93% at heavy loads.
URI: http://dx.doi.org/10.1109/JSSC.2009.2014726
http://hdl.handle.net/11536/27787
ISSN: 0018-9200
DOI: 10.1109/JSSC.2009.2014726
期刊: IEEE JOURNAL OF SOLID-STATE CIRCUITS
Volume: 44
Issue: 4
起始頁: 1099
結束頁: 1111
顯示於類別:會議論文


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