Skip to main navigation Skip to search Skip to main content

Novel Switched-Capacitor DC-DC Converter Achieving Highest Rational Conversion Ratios Using Inter-Stage Feedback

  • University of California at Berkeley

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper proposes an inter-stage feedback-based switched-capacitor (IFSC) converter that can be configured to realize any rational voltage-conversion ratio (VCR) using a minimum number of 2:1 switched-capacitor (SC) stages. The converter enables efficient dynamic voltage scaling (DVS) operation over a larger voltage range by significantly increasing the resolution of voltage levels. Additionally, a restructuring algorithm has been proposed to achieve all VCRs without requiring any additional dedicated voltage stages. The converter extends the idea of the recursive switched-capacitor (RSC) topology, which spans 2N -1 ratios with N 2:1 SC cells. Comparative analysis shows that the proposed converter outperforms the negative-output feedback-based converter in terms of bottom-plate parasitic loss for most VCRs. To validate the concept, a fully-reconfigurable hardware prototype has been developed.

Original languageEnglish
Title of host publication2023 IEEE 24th Workshop on Control and Modeling for Power Electronics, COMPEL 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350316186
DOIs
StatePublished - 2023
Event24th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2023 - Ann Arbor, United States
Duration: Jun 25 2023Jun 28 2023

Publication series

Name2023 IEEE 24th Workshop on Control and Modeling for Power Electronics, COMPEL 2023

Conference

Conference24th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2023
Country/TerritoryUnited States
CityAnn Arbor
Period06/25/2306/28/23

Keywords

  • dc-dc converter
  • inter-stage feedback
  • reconfigurable switched capacitor converter
  • recursive converter

Fingerprint

Dive into the research topics of 'Novel Switched-Capacitor DC-DC Converter Achieving Highest Rational Conversion Ratios Using Inter-Stage Feedback'. Together they form a unique fingerprint.

Cite this