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Conference Paper: Small-signal model of quasi-resonant converters in the presence of conduction losses

TitleSmall-signal model of quasi-resonant converters in the presence of conduction losses
Authors
Issue Date1991
Citation
Proceedings - Ieee International Symposium On Circuits And Systems, 1991, v. 2, p. 1081-1084 How to Cite?
AbstractBy extracting the switching part and resonant tank of the quasi-resonant converter circuit into a minimum separable switching configuration (MISSCO), an identifiable equivalent circuit model of the MISSCO can be obtained. By perturbing this model, separating the DC and AC components and including it in the converter structure to replace the MISSCO part, the DC and small-signal models of the converter are derived. The analysis includes the conduction losses of the switching devices and reactive elements to improve the model accuracy. The transfer functions of input to output, and control frequency to output are formulated. The model is suitable for frequency-domain analysis. Bode plots obtained by computer simulation are compared with the experimental results. A zero-current-switching buck quasi-resonant converter, operating in both half- and full-wave modes, is considered.
Persistent Identifierhttp://hdl.handle.net/10722/158094
ISSN

 

DC FieldValueLanguage
dc.contributor.authorChau, Kwok Tongen_US
dc.contributor.authorIoinovici, Adrianen_US
dc.date.accessioned2012-08-08T08:58:03Z-
dc.date.available2012-08-08T08:58:03Z-
dc.date.issued1991en_US
dc.identifier.citationProceedings - Ieee International Symposium On Circuits And Systems, 1991, v. 2, p. 1081-1084en_US
dc.identifier.issn0271-4310en_US
dc.identifier.urihttp://hdl.handle.net/10722/158094-
dc.description.abstractBy extracting the switching part and resonant tank of the quasi-resonant converter circuit into a minimum separable switching configuration (MISSCO), an identifiable equivalent circuit model of the MISSCO can be obtained. By perturbing this model, separating the DC and AC components and including it in the converter structure to replace the MISSCO part, the DC and small-signal models of the converter are derived. The analysis includes the conduction losses of the switching devices and reactive elements to improve the model accuracy. The transfer functions of input to output, and control frequency to output are formulated. The model is suitable for frequency-domain analysis. Bode plots obtained by computer simulation are compared with the experimental results. A zero-current-switching buck quasi-resonant converter, operating in both half- and full-wave modes, is considered.en_US
dc.languageengen_US
dc.relation.ispartofProceedings - IEEE International Symposium on Circuits and Systemsen_US
dc.titleSmall-signal model of quasi-resonant converters in the presence of conduction lossesen_US
dc.typeConference_Paperen_US
dc.identifier.emailChau, Kwok Tong:ktchau@eee.hku.hken_US
dc.identifier.authorityChau, Kwok Tong=rp00096en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0026287840en_US
dc.identifier.volume2en_US
dc.identifier.spage1081en_US
dc.identifier.epage1084en_US
dc.identifier.scopusauthoridChau, Kwok Tong=7202674641en_US
dc.identifier.scopusauthoridIoinovici, Adrian=7003591597en_US

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