Power saying of a dynamic width controller for a monolithic current-mode CMOS DC-DC converter

Hung Chi Lee*, Kuo Tai Chang, Ke-Horng Chen, Wen Tsao Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

We propose the dynamic power MOS width controlling technique and the adaptive gate driver voltage technique to find out the better approach to power saving in DC-DC converters. It demonstrates that the dynamic power MOS width controlling technique has much improvement in power consumption than that of the adaptive gate driver voltage technique when the load current is heavy or light. After the dynamic power MOS width modification, the simulation results show that the efficiency of current-mode DC-DC buck converter can be improved from 92% to about 98% in heavy load and from 15% to about 16.3% in light load. However, the adaptive gate driver voltage technique has only little improvement of power saving. It means that the dynamic width controller is the better approach to power saving in the DC-DC converter.

Original languageEnglish
Title of host publicationProceedings - Fifth International Workshop on System-on-Chip for Real-Time Applications, IWSOC 2005
Pages352-357
Number of pages6
DOIs
StatePublished - 1 Dec 2005
EventFifth International Workshop on System-on-Chip for Real-Time Applications, IWSOC 2005 - Banff, Alta., Canada
Duration: 20 Jul 200524 Jul 2005

Publication series

NameProceedings - Fifth International Workshop on System-on-Chip for Real-Time Applications, IWSOC 2005
Volume2005

Conference

ConferenceFifth International Workshop on System-on-Chip for Real-Time Applications, IWSOC 2005
CountryCanada
CityBanff, Alta.
Period20/07/0524/07/05

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    Lee, H. C., Chang, K. T., Chen, K-H., & Chen, W. T. (2005). Power saying of a dynamic width controller for a monolithic current-mode CMOS DC-DC converter. In Proceedings - Fifth International Workshop on System-on-Chip for Real-Time Applications, IWSOC 2005 (pp. 352-357). [1530970] (Proceedings - Fifth International Workshop on System-on-Chip for Real-Time Applications, IWSOC 2005; Vol. 2005). https://doi.org/10.1109/IWSOC.2005.93