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dc.contributor.advisorBaumann, William T.en_US
dc.contributor.advisorRamu, Krishnanen_US
dc.contributor.advisorLai, Jasonen_US
dc.contributor.authorPepa, Eltonen_US
dc.date.accessioned2011-08-06T14:45:44Z
dc.date.available2011-08-06T14:45:44Z
dc.date.issued2004-02-06en_US
dc.identifier.otheretd-02172004-170238en_US
dc.identifier.urihttp://hdl.handle.net/10919/9722
dc.description.abstractThis thesis shows the implementation of a novel control scheme DC-DC converter. The converter is a phase-shifted full-bridge PWM converter that is designed to operate as a front stage of a power conversion system where the input is a variable low voltage high current source. The converter is designed to step-up the low voltage input to an acceptable level that can be inverted to a 120/240 VAC 60Hz voltage for residential power. A DSP based adaptive control model is developed, taking into account line variations introduced by the input source while providing very good load dynamics for the converter in both discontinuous and continuous conduction modes. The adaptive controller is implemented using two voltage sensors that read the input and the output voltages of the converter. The controller's bandwidth is comparable to current mode control, without the need for an expensive current sensor, yet providing the noise immunity seen in voltage mode controllers. The intended input source was a fuel cell but in its absence a DC supply is utilized instead. The system is simulated for both discontinuous and continuous conduction modes and implemented and demonstrated for the continuous conduction mode. The test results are shown to match the simulation results very closely.en_US
dc.format.mediumETDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartThesis_epepa.pdfen_US
dc.rightsThe authors of the theses and dissertations are the copyright owners. Virginia Tech's Digital Library and Archives has their permission to store and provide access to these works.en_US
dc.source.urihttp://scholar.lib.vt.edu/theses/available/etd-02172004-170238en_US
dc.subjectphase shift modulationen_US
dc.subjectadaptive controlen_US
dc.subjectconverteren_US
dc.subjectfull bridgeen_US
dc.titleAdaptive Control of a Step-Up Full-Bridge DC-DC Converter for Variable Low Input Voltage Applicationsen_US
dc.typeThesisen_US
dc.contributor.departmentElectrical and Computer Engineeringen_US
dc.description.degreeMSen_US


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