DocumentCode :
2522032
Title :
Soft-start circuit with duty ratio controlled voltage clamping and adaptive sizing technique for integrated DC-DC converters
Author :
Jing, Xiaocheng ; Mok, Philip K T
Author_Institution :
Hong Kong Univ. of Sci. & Technol., Hong Kong, China
fYear :
2010
fDate :
15-17 Dec. 2010
Firstpage :
1
Lastpage :
4
Abstract :
A novel soft-start technique with charge-pump based staircase clamping voltage generator to eliminate the inrush-current and over-shoot voltage is presented. Proper duty cycle is introduced as a new freedom to control the soft-start speed which enables a fully on-chip design to reduce the cost of the converter. In addition, adaptive sizing method is presented to control the charging current for boost converters when the output voltage is less than the input voltage. A boost DC-DC converter is implemented with a 0.35 μm CMOS process. Simulation results show a smooth start-up with load range from 0-500 mA.
Keywords :
DC-DC power convertors; voltage control; adaptive sizing technique; duty ratio controlled voltage clamping; inrush-current; integrated DC-DC converters; over-shoot voltage; soft-start circuit; staircase clamping; Artificial neural networks; Decoding; Load modeling; Surges;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2010 IEEE International Conference of
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-9997-7
Type :
conf
DOI :
10.1109/EDSSC.2010.5713776
Filename :
5713776
Link To Document :
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