Generalized Construction of ZCS Switched-Capacitor Bi-directional Converter

Yuang-Shung LEE  Yin-Yuan CHIU  Ming-Wang CHENG  

IEICE TRANSACTIONS on Communications   Vol.E89-B   No.10   pp.2913-2921
Publication Date: 2006/10/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.10.2913
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Energy in Electronics Communications
zero current switching,  switched-capacitor DC-DC converter,  bidirectional power flow control,  quasi-resonant converter,  

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The proposed zero-current switching switched-capacitor (ZCS SC) DC-DC converter is an innovative bi-directional power flow control conversion scheme. A zero-current switching switched-capacitor step-up/step-down bi-directional converter is presented that can improve the current stress problem during bi-directional power flow control processing. It can provide a high voltage conversion ratio of n/ (n-mode/-mode) using four power MOSFET main switches, a set of switched-capacitors and a small resonant inductor. Simulation and experimental results are carried out to verify the concept and performance of the proposed quadruple-mode/quarter-mode bi-directional DC-DC converter.