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Article: A zero-current-switching PWM flyback converter with a simple auxiliary switch

TitleA zero-current-switching PWM flyback converter with a simple auxiliary switch
Authors
KeywordsPower supplies
Resonant power conversion
Switching regulators
Issue Date1999
PublisherIEEE
Citation
Ieee Transactions On Power Electronics, 1999, v. 14 n. 2, p. 329-342 How to Cite?
AbstractA simple and effective approach of turning an isolated hard-switched converter design into a soft-switched one is presented. By adding an auxiliary winding, switch, and small capacitor to the conventional pulsewidth modulation (PWM)-isolated flyback converter, all switches and diodes are softly turned on and off. No extra active or passive voltage clamp circuit is needed to suppress voltage stress on the switching devices that were usually found in classical converters. A zero-current-switching (ZCS) PWM flyback converter topology with multiple outputs is analyzed and examined. The proposal inherently utilizes the leakage inductance of the "flyback" transformer to achieve ZCS of all switching devices. A complete steady-state dc analysis and the operating principle are described. The performance of an 80-W experimental converter prototype with dual-voltage outputs is included.
Persistent Identifierhttp://hdl.handle.net/10722/136854
ISSN
2015 Impact Factor: 4.953
2015 SCImago Journal Rankings: 3.005
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChung, HSHen_HK
dc.contributor.authorHui, SYen_HK
dc.contributor.authorWang, WHen_HK
dc.date.accessioned2011-07-29T02:13:09Z-
dc.date.available2011-07-29T02:13:09Z-
dc.date.issued1999en_HK
dc.identifier.citationIeee Transactions On Power Electronics, 1999, v. 14 n. 2, p. 329-342en_HK
dc.identifier.issn0885-8993en_HK
dc.identifier.urihttp://hdl.handle.net/10722/136854-
dc.description.abstractA simple and effective approach of turning an isolated hard-switched converter design into a soft-switched one is presented. By adding an auxiliary winding, switch, and small capacitor to the conventional pulsewidth modulation (PWM)-isolated flyback converter, all switches and diodes are softly turned on and off. No extra active or passive voltage clamp circuit is needed to suppress voltage stress on the switching devices that were usually found in classical converters. A zero-current-switching (ZCS) PWM flyback converter topology with multiple outputs is analyzed and examined. The proposal inherently utilizes the leakage inductance of the "flyback" transformer to achieve ZCS of all switching devices. A complete steady-state dc analysis and the operating principle are described. The performance of an 80-W experimental converter prototype with dual-voltage outputs is included.en_HK
dc.languageengen_US
dc.publisherIEEEen_US
dc.relation.ispartofIEEE Transactions on Power Electronicsen_HK
dc.subjectPower suppliesen_HK
dc.subjectResonant power conversionen_HK
dc.subjectSwitching regulatorsen_HK
dc.titleA zero-current-switching PWM flyback converter with a simple auxiliary switchen_HK
dc.typeArticleen_HK
dc.identifier.emailHui, SY:ronhui@eee.hku.hken_HK
dc.identifier.authorityHui, SY=rp01510en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/63.750187en_HK
dc.identifier.scopuseid_2-s2.0-0033098621en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033098621&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume14en_HK
dc.identifier.issue2en_HK
dc.identifier.spage329en_HK
dc.identifier.epage342en_HK
dc.identifier.isiWOS:000079040800014-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChung, HSH=7404007467en_HK
dc.identifier.scopusauthoridHui, SY=7202831744en_HK
dc.identifier.scopusauthoridWang, WH=36072896000en_HK

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