Title
Designing a compact soft-start scheme for voltage-mode DC–DC switching converters
Abstract
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
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 Li181.10
Xue-cheng Zou215028.50
Xiaofei Chen381.77
Quan Gan481.10