Analysis and Design of a Modified Triple-mode Resonant Switched-capacitor Converter with Hybrid Modulation Scheme

Zhenning Li, Shengnan Liang, Shouxiang Li

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

3 Citations (Scopus)

Abstract

In this paper, a modified triple-mode resonant switched-capacitor converter (RSC) with phase-shift and variable frequency hybrid modulation scheme is analyzed and designed. All the transistors can be operated with zero voltage switching (ZVS) turn-on, reducing switching loss significantly. Based on the comprehensive operation principle analysis, state-plane trajectory, a modulation scheme is proposed to provide a guideline for converter operation in the low circulating current region and to improve the light-load operation performance. It is shown that both the switching frequency and phase-shift range can be modulated to regulate the output voltage continuously and widely. A 48 V to 100V-160V open loop prototype with power level 70- 170W, frequency range 90-140 kHz and peak efficiency 98.4% was built to verify the operation of the converter.

Original languageEnglish
Title of host publicationProceedings - IECON 2020
Subtitle of host publication46th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
Pages1255-1260
Number of pages6
ISBN (Electronic)9781728154145
DOIs
Publication statusPublished - 18 Oct 2020
Event46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 - Virtual, Singapore, Singapore
Duration: 19 Oct 202021 Oct 2020

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2020-October

Conference

Conference46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
Country/TerritorySingapore
CityVirtual, Singapore
Period19/10/2021/10/20

Keywords

  • ZVS
  • phase-shift
  • resonant switched-capacitor converter
  • variable frequency
  • voltage regulation

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