180 research outputs found
Dielectric response of graded composites having general power-law-graded cylindrical inclusions
Author name used in this publication: Y. M. Poon2005-2006 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Explicit formulas for effective piezoelectric coefficients of ferroelectric 0-3 composites based on effective medium theory
Author name used in this publication: C. K. WongAuthor name used in this publication: Y. M. PoonAuthor name used in this publication: F. G. Shin2002-2003 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Dielectric response of spherically anisotropic graded piezoelectric composites
Author name used in this publication: Y. M. PoonAuthor name used in this publication: F. G. Shin2007-2008 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Dielectric and pyroelectric properties of lead zirconate titanate/polyurethane composties
Author name used in this publication: K. S. LamAuthor name used in this publication: Y. W. WongAuthor name used in this publication: L. S. TaiAuthor name used in this publication: Y. M. PoonAuthor name used in this publication: F. G. Shin2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
General impedance synthesis using simple switching converters
Author name used in this publication: Chi K. TseAuthor name used in this publication: Franki N. K. PoonRefereed conference paper2005-2006 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe
A PFC voltage regulator with low input current distortion derived from a rectifierless topology
Author name used in this publication: Chi K. Tse2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Synthesis of input-rectifierless AC-DC converters
This paper discusses the basic construction procedure and topological possibilities of creating ac/dc converters out of simple dc/dc conveners. It is shown that two separately controlled dc/dc conveners are sufficient for producing a regulated dc output and shaping the input current, from an ac voltage source, without the need for input rectifiers. Some design constraints are discussed, emanating from the limitation of the conversion ratios that can be achieved by particular dc/dc converters. Selected topologies are verified experimentally.published_or_final_versio
A PFC topology with low input current distortion suitable for aircraft power supplies
Author name used in this publication: Chi K. TseAuthor name used in this publication: M. H. PongRefereed conference paper2003-2004 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe
Synthesis of input-rectifierless AC/DC converters
This paper discusses the basic construction procedure and topological possibilities of creating ac/dc converters out of simple dc/dc converters. It is shown that two separately controlled dc/dc converters are sufficient for producing a regulated dc output and shaping the input current, from an ac voltage source, without the need for input rectifiers. Some design constraints are discussed, emanating from the limitation of the conversion ratios that can be achieved by particular dc/dc converters. Selected topologies are verified experimentally. This kind of rectifierless converters find applications in airborne power supplies where zero-crossing distortions are significant because of the inevitable phase-lead effect of the input rectifier bridge.published_or_final_versio
Synthesis of input-rectifierless ac-dc converters
Author name used in this publication: J. C. P. LiuAuthor name used in this publication: C. K. TseAuthor name used in this publication: M. H. PongRefereed conference paper2000-2001 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe
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