標題: Load current adaptive control of a monolithic CMOS DC/DC converter for dynamic power management
作者: Su, Wei-Chi
Tzou, Ying-Yu
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: CMOS DC/DC converters;synchronous buck regulator;load current adaptive control;nonlinear carrier;fast dynamic response;dynamic power management
公開日期: 2007
摘要: This paper presents the design of a monolithic current-mode CMOS DC/DC converter with integrated power switches and an on-chip passive adaptive controller with the sensed average inductor current. The sensed switched current, combined with the integration of inductor voltage, and a voltage-controlled floating resistor, can be used for the adaptive control of a CMOS DC/DC converter. The nonlinear carrier control can adjust carrier according to input voltage to reduce the input disturbance. The proposed control scheme has been design and simulation verified based on the TSMC 0.35 mu m technology. The designed CMOS DC/DC switching regulator is based on a rated output current of 500mA with an adjustable output voltage from 1.0V to 1.8V. Simulation results shows the proposed adaptive control scheme can achieve a fast dynamic power on transient response as well as a robust voltage regulation against large loading current variation.
URI: http://hdl.handle.net/11536/11756
http://dx.doi.org/10.1109/PESC.2007.4342015
ISBN: 978-1-4244-0654-8
ISSN: 0275-9306
DOI: 10.1109/PESC.2007.4342015
期刊: 2007 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-6
起始頁: 370
結束頁: 376
Appears in Collections:Conferences Paper


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