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dc.contributor.authorSterk, Douglas Richarden_US
dc.date.accessioned2011-08-06T14:43:56Z
dc.date.available2011-08-06T14:43:56Z
dc.date.issued2003-12-17en_US
dc.identifier.otheretd-12302003-153541en_US
dc.identifier.urihttp://hdl.handle.net/10919/9648
dc.description.abstractIn the early 1990's, with the boom of the Internet and the advancements in telecommunications, the demand for high-speed communications systems has reached every corner of the world in forms such as, phone exchanges, the internet servers, routers, and all other types of telecommunication systems. These communication systems demand more data computing, storage, and retrieval capabilities at higher speeds, these demands place a great strain on the power system. To lessen this strain, the existing power architecture must be optimized. With the arrival of the age of high speed and power hungry microprocessors, the point of load converter has become a necessity. The power delivery architecture has changed from a centralized distribution box delivering an entire system's power to a distributed architecture, in which a common DC bus voltage is distributed and further converted down at the point of load. Two common distributed bus voltages are 12 V for desktop computers and 48 V for telecommunications server applications. As industry strives to design more functionality into each circuit or motherboard, the area available for the point of load converter is continually decreasing. To meet industries demands of more power in smaller sizes power supply designers must increase the converter's switching frequencies. Unfortunately, as the converter switching frequency increases the efficiency is compromised. In particular, the switching, gate drive and body diode related losses proportionally increase with the switching frequency. This thesis introduces a loss saving self-driven method to drive the secondary side synchronous rectifiers. The loss saving self-driven method introduces two additional transformers that increase the overall footprint of the converter. Also, this thesis proposes a new magnetic integration method to eliminate the need for the two additional gate driver magnetic cores by allowing three discrete power signals to pass through one single magnetic structure. The magnetic integration reduces the overall converter footprint.en_US
dc.format.mediumETDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartETD_MS_Thesis_DougSterk.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectdistributed power systemsen_US
dc.subjectintegrated magneticsen_US
dc.subjectintegrated transformeren_US
dc.subjectself-drivenen_US
dc.titleCompact Isolated High Frequency DC/DC Converters Using Self-Driven Synchronous Rectificationen_US
dc.typeThesisen_US
dc.contributor.departmentElectrical and Computer Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineElectrical and Computer Engineeringen_US
dc.contributor.committeechairLee, Fred C.en_US
dc.contributor.committeememberBoroyevich, Dushanen_US
dc.contributor.committeememberBaumann, William T.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-12302003-153541en_US
dc.date.sdate2003-12-30en_US
dc.date.rdate2003-12-31
dc.date.adate2003-12-31en_US


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