標題: Transient Improvement by Window Transient Enhancement and Overshoot Suppression Techniques in Current Mode Boost Converter
作者: Luo, Yean-Kuo
Chiou, Chao-Chang
Wu, Chun-Hsien
Chen, Ke-Horng
Hsu, Wei-Chou
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: Boost converter;constant frequency regulation;dc-dc power converter;free-wheeling switching;on-chip compensation;OSS technique;overshoot suppression
公開日期: 1-十月-2011
摘要: In this paper, a current mode boost converter using window transient enhancement (WTE) and overshoot suppression (OSS) technique is presented for digital still camera (DSC) applications. The peak-to-peak transient overshoot voltage demand of a DSC motor driver is generally within 4%-5% of the regulated value. However, conventional boost converters usually fail to pass this criterion during large load transient. The OSS technique reduces the overshoot voltage when load current changes from heavy to very light. Experimental results show that compared with the use of a conventional current mode boost converter, the use of the technique reduces drop voltage about 62% and overshoot voltage about 51% when the load current has a load step of 400 mA. Moreover, the settling time improves to 43%, which is better than in the conventional case of a 400 mA load current step. The overhead of the silicon area is about 4.5% to achieve the overshoot reduction. The estimated high performance demonstrates that it is suitable for DSC applications.
URI: http://dx.doi.org/10.1109/TPEL.2011.2116807
http://hdl.handle.net/11536/14752
ISSN: 0885-8993
DOI: 10.1109/TPEL.2011.2116807
期刊: IEEE TRANSACTIONS ON POWER ELECTRONICS
Volume: 26
Issue: 10
起始頁: 2753
結束頁: 2761
顯示於類別:期刊論文


文件中的檔案:

  1. 000296982100004.pdf