NDLI: A practical control strategy to improve unloading transient response performance for buck converters

Content Provider	IEEE Xplore Digital Library
Author	Liang Jia Zhiyuan Hu Yan-Fei Liu Sen, P.C.
Copyright Year	2011
Description	Author affiliation: Department of Electrical and Computer Engineering, Queen's University, Kingston, ON K7L 3N6, Canada (Liang Jia; Zhiyuan Hu; Yan-Fei Liu; Sen, P.C.)
Abstract	In this paper, a practical control strategy is presented which is capable of controlling a 12V–1.5V Buck converter and an auxiliary converter to achieve significantly improved unloading response performance. The auxiliary circuit is controlled by peak current mode method for a predictable number of auxiliary switching, while the charge balance controller minimizes the settling time of the Buck converter. In the proposed strategy, a good tradeoff has been made (between the trends to further suppress the voltage overshoot and reduce the power loss). Furthermore, analysis of the auxiliary circuit power loss and the improved output voltage overshoot has been conducted as a design guideline. Finally, simulation and experimental results are provided to verify the proposed scheme on a 12V–1.5V 10A Buck converter prototype.
Starting Page	397
Ending Page	404
File Size	511253
Page Count	8
File Format	PDF
ISBN	9781457705427
e-ISBN	9781457705410
DOI	10.1109/ECCE.2011.6063797
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-09-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inductance Capacitor charge balance controller Buck converter Capacitors Controlled auxiliary current Switches Transient analysis Voltage control Fast transient response Switching circuits
Content Type	Text
Resource Type	Article

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