Abstract | ||
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In this paper, a compact soft-start scheme is proposed and successfully applied to typical voltage-mode DC-DC switching converters. The adaptive current limitation implemented through DAC control will largely reduce the overshoot voltage under a wide range of output current. Proven experimentally by a buck converter implemented in a 0.5@mm CMOS technology, the post-simulation results show that when the converter starts up, the maximum overshoot (2.7% at I"L"O"A"D=0A) by the proposed soft-start scheme is less than that with the conventional scheme by 5% under the same condition. The start-up time can be adaptively adjustable depending on load current and the maximum start-up time is around 760@ms with 22@mF output capacitor. The circuits which realize the soft-start scheme can also be fully integrated into the control chip of DC-DC switching converter resulting in low cost. |
Year | DOI | Venue |
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2010 | 10.1016/j.mejo.2010.05.001 | Microelectronics Journal |
Keywords | Field | DocType |
dac control,compact soft-start scheme,proposed soft-start scheme,conventional scheme,adaptive current limitation,output current,mf output capacitor,voltage-mode dc-dc,buck converter,soft-start scheme,control chip,inrush current,chip,digital controller | Inrush current,Overshoot (signal),Converters,CMOS,Electronic engineering,Power electronics,Current limiting,Engineering,Electronic circuit,Buck converter,Electrical engineering | Journal |
Volume | Issue | ISSN |
41 | 7 | Microelectronics Journal |
Citations | PageRank | References |
8 | 1.10 | 3 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Sizhen Li | 1 | 8 | 1.10 |
Xue-cheng Zou | 2 | 150 | 28.50 |
Xiaofei Chen | 3 | 8 | 1.77 |
Quan Gan | 4 | 8 | 1.10 |