High Performance Integrated Controller with Variable Frequency Control for Switching DC-DC Converters

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dc.contributor.advisorAlex Q. Huang, Committee Chairen_US
dc.contributor.advisorKevin G. Gard, Committee Memberen_US
dc.contributor.advisorMaysam Ghovanloo, Committee Memberen_US
dc.contributor.advisorMesut E. Baran, Committee Memberen_US
dc.contributor.authorDuan, Xiaomingen_US
dc.date.accessioned2010-04-02T18:31:18Z
dc.date.available2010-04-02T18:31:18Z
dc.date.issued2007-11-01en_US
dc.degree.disciplineElectrical Engineeringen_US
dc.degree.leveldissertationen_US
dc.degree.namePhDen_US
dc.description.abstractDevelopment of digital core chips poses serious challenges to the power supply design. High performance switching DC-DC converter must meet requirements of high current, low voltage tolerance, fast transient response, high power efficiency, small profile and low cost. The conventional PWM control with constant switching frequency has limitation to improve both transient response and power efficiency because there is a conflicting requirement on switching frequency. The control scheme with variable frequency has promising features to achieve better overall performance, but the issues in the reported design approaches limit their usefulness in the practical applications. This dissertation reviews and summarizes the issues and the design considerations in the high current switching DC-DC converters. To improve the system performance, novel control architecture with variable switching frequency and novel implementation of the integrated controller are proposed in this dissertation. The proposed control architecture is modeled and analyzed. Fully differential circuits are designed to implement the control core functions. The design methodology and the design considerations are discussed. The control concept and the proposed circuits are verified by the prototype controller chip.en_US
dc.identifier.otheretd-09242006-211828en_US
dc.identifier.urihttp://www.lib.ncsu.edu/resolver/1840.16/3527
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 NC State University 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.subjectpower managementen_US
dc.subjectvoltage regulation moduleen_US
dc.subjectvariable switching frequencyen_US
dc.subjectswitching DC-DC converteren_US
dc.titleHigh Performance Integrated Controller with Variable Frequency Control for Switching DC-DC Convertersen_US

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