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Title: Fundamental considerations of three-level DC-DC converters : topologies, analyses, and control
Authors: Ruan, X
Li, B
Chen, Q
Tan, SC
Tse, CKM 
Issue Date: Dec-2008
Source: IEEE transactions on circuits and systems. I, Regular papers, Dec. 2008, v. 55, no. 11, p. 3733-3743
Abstract: This paper discusses the basic family of three-level (TL) dc-dc converters. The origin of TL converters and their basic topological variations are described. Systematic procedures leading to improved and simplified circuit topologies are discussed. A feedforward control scheme that ensures the proper functioning of these converters is proposed. Moreover, the virtues and drawbacks of these converters as compared to conventional converters are highlighted. In particular, the advantages of TL converters include reduced voltage stress of the switches, reduced filter size, and improved dynamic response. It is shown that TL converters are highly suitable for high input/output voltage and medium-to-high-power dc-dc power conversions.
Keywords: DC-DC power conversion
Feedforward control
Full-bridge (FB) converter
Interleaved control
Three-level (TL) converter
Publisher: Institute of Electrical and Electronics Engineers
Journal: IEEE transactions on circuits and systems. I, Regular papers 
ISSN: 1549-8328
EISSN: 1558-0806
DOI: 10.1109/TCSI.2008.927218
Rights: © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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