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dc.contributor.authorMousavian, Seyedhosseinen
dc.date.accessioned2017-11-28T21:34:20Z
dc.date.available2017-11-28T21:34:20Z
dc.identifier.urihttp://hdl.handle.net/1974/23749
dc.description.abstractFaster dynamic response and higher power density are the major achievements obtained by increasing the switching frequency of power supplies. However, switching frequencies are limited by topology, control, semiconductor materials, and packaging methods. To address these issues, the thesis first proposes a new quasi-resonant converter topology reduces the switching components’ voltage stress to half, and nearly eliminates the switching losses in quasi-resonant converters specifically under on-off control strategy. The second major thesis achievement is the introduction of the first cycle control method that enhances the performance of the so-called ‘on-off’ control method. This method suffers from overvoltage stress and the hard-switching power losses in on-off transients. The proposed first cycle control method substantially alleviates the voltage stress and switching losses. This achievement makes better use of the switches, and paves the way to further increase the on-off rate. Final contribution is the proposed (ZVT) cell that is introduced to have a fully ZVS on-off control. Simple structure, low number of components, and avoidance of inductive components in the cell are advantages of the circuit. Higher modulation frequency, lower input and output filter sizes, and faster dynamic responses are the benefits of this method. The zero voltage switching operation of all semiconductor components allows the designer to increase the modulation frequency without any significant drop in the overall efficiency.en
dc.language.isoengen
dc.relation.ispartofseriesCanadian thesesen
dc.rightsQueen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canadaen
dc.rightsProQuest PhD and Master's Theses International Dissemination Agreementen
dc.rightsIntellectual Property Guidelines at Queen's Universityen
dc.rightsCopying and Preserving Your Thesisen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectMHz Resonant DC-DC Convertersen
dc.subjectFirst Cycle Controlen
dc.subjectResonant DC-DC Convertersen
dc.subjectSoft Switchingen
dc.titleMHz Resonant DC-DC Converters with First Cycle Controlen
dc.typethesisen
dc.description.degreePhDen
dc.contributor.supervisorBakhshai, Alirezaen
dc.contributor.supervisorJain, Praveenen
dc.contributor.departmentElectrical and Computer Engineeringen
dc.degree.grantorQueen's University at Kingstonen


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