Analysis and optimization of CMOS switched-capacitor converters

Visvesh S. Sathe, Jae-sun Seo

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

5 Scopus citations

Abstract

Energy-efficiency continues to limit peak computational performance in digital systems. To drive continued energy-improvements, designers of modern digital systems are relying on multiple, smaller voltage domains for enhanced voltage-scaling. Switched-capacitor (SC) voltage converters are a promising alternative to traditional switched-inductor regulators due to their suitability for efficient, fully-integrated regulation of finer voltage domains. However, several important problems regarding the analysis and optimization of SC converter design remain unaddressed. This paper develops a comprehensive analysis of SC converter output resistance to establish the optimal switching frequency and switch resistance for maximum converter efficiency. The proposed analysis is validated through simulation experiments conducted using an industrial 65nm CMOS technology.

Original languageEnglish (US)
Title of host publicationProceedings of the International Symposium on Low Power Electronics and Design, ISLPED 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages327-334
Number of pages8
ISBN (Electronic)9781467380096
DOIs
StatePublished - Sep 21 2015
Event20th IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2015 - Rome, Italy
Duration: Jul 22 2015Jul 24 2015

Publication series

NameProceedings of the International Symposium on Low Power Electronics and Design
Volume2015-September
ISSN (Print)1533-4678

Other

Other20th IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2015
CountryItaly
CityRome
Period7/22/157/24/15

Keywords

  • Analytical models
  • Mathematical model
  • Regulators
  • Resistance
  • Switches
  • Switching frequency
  • Voltage control

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Sathe, V. S., & Seo, J. (2015). Analysis and optimization of CMOS switched-capacitor converters. In Proceedings of the International Symposium on Low Power Electronics and Design, ISLPED 2015 (pp. 327-334). [7273535] (Proceedings of the International Symposium on Low Power Electronics and Design; Vol. 2015-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISLPED.2015.7273535