Conference Paper: Design and analysis on reduced switching frequency current mode control isolated power converters for light load efficiency

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Publisher Website: 10.1109/ECCE.2009.5316051
Scopus: eid_2-s2.0-72449206540

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Title	Design and analysis on reduced switching frequency current mode control isolated power converters for light load efficiency
Authors	Yu, R Pong, MH1
Keywords	Isolated DC/DC converters Multiple modes Light load efficiency Pulse frequency modulation PFM Mixed signal control
Issue Date	2009
Publisher	IEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1002943
Citation	The Inaugural IEEE Energy Conversion Congress and Exposition (ECCE 2009), San Jose, CA., 20-24 September 2009. In Proceedings of the IEEE Energy Conversion Congress and Exposition, 2009, p. 3268-3273 [How to Cite?] DOI: http://dx.doi.org/10.1109/ECCE.2009.5316051
Abstract	This paper focus on improving light load efficiency of isolated DC/DC converters. A mixed signal control platform is proposed to implement multiple-mode variable frequency control. An 8-bit Micro Controller Unit MCU is used in the platform to provide adaptive control schemes and cost effectiveness digital solutions. Small signal analysis is covered to explain frequency modulation effects. Control of isolation transformer flux swing to avoid saturation is also implemented, to provide safe operation both in steady and transient states. A 300 Watt prototype Two-FET forward converter is built up to verify the proposed mixed signal control platform. © 2009 IEEE.
ISBN	978-1-4244-2893-9
DOI	http://dx.doi.org/10.1109/ECCE.2009.5316051
References	References in Scopus

DC Field	Value
dc.contributor.author	Yu, R
dc.contributor.author	Pong, MH
dc.date.accessioned	2011-03-21T09:00:15Z
dc.date.available	2011-03-21T09:00:15Z
dc.date.issued	2009
dc.description.abstract	This paper focus on improving light load efficiency of isolated DC/DC converters. A mixed signal control platform is proposed to implement multiple-mode variable frequency control. An 8-bit Micro Controller Unit MCU is used in the platform to provide adaptive control schemes and cost effectiveness digital solutions. Small signal analysis is covered to explain frequency modulation effects. Control of isolation transformer flux swing to avoid saturation is also implemented, to provide safe operation both in steady and transient states. A 300 Watt prototype Two-FET forward converter is built up to verify the proposed mixed signal control platform. © 2009 IEEE.
dc.description.nature	published_or_final_version
dc.description.other	The Inaugural IEEE Energy Conversion Congress and Exposition (ECCE 2009), San Jose, CA., 20-24 September 2009. In Proceedings of the IEEE Energy Conversion Congress and Exposition, 2009, p. 3268-3273
dc.identifier.citation	The Inaugural IEEE Energy Conversion Congress and Exposition (ECCE 2009), San Jose, CA., 20-24 September 2009. In Proceedings of the IEEE Energy Conversion Congress and Exposition, 2009, p. 3268-3273 [How to Cite?] DOI: http://dx.doi.org/10.1109/ECCE.2009.5316051
dc.identifier.doi	http://dx.doi.org/10.1109/ECCE.2009.5316051
dc.identifier.epage	3273
dc.identifier.hkuros	178506
dc.identifier.isbn	978-1-4244-2893-9
dc.identifier.scopus	eid_2-s2.0-72449206540
dc.identifier.spage	3268
dc.identifier.uri	http://hdl.handle.net/10722/132190
dc.language	eng
dc.publisher	IEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1002943
dc.publisher.place	United States
dc.relation.ispartof	Proceedings of the IEEE Energy Conversion Congress and Exposition
dc.relation.references	References in Scopus
dc.rights	Proceedings of the IEEE Energy Conversion Congress and Exposition. Copyright © IEEE.
dc.rights	©2009 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.
dc.rights	Creative Commons: Attribution 3.0 Hong Kong License
dc.subject	Isolated DC/DC converters
dc.subject	Multiple modes
dc.subject	Light load efficiency
dc.subject	Pulse frequency modulation PFM
dc.subject	Mixed signal control
dc.title	Design and analysis on reduced switching frequency current mode control isolated power converters for light load efficiency
dc.type	Conference_Paper

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Author Affiliations

The University of Hong Kong