Masters Theses
Date of Award
12-2018
Degree Type
Thesis
Degree Name
Master of Science
Major
Electrical Engineering
Major Professor
Daniel Costinett
Committee Members
Benjamin Blalock, Leon Tolbert
Abstract
The growth of the information technology sector has increased demand for high-density, high-efficiency point-of-load (POL) converters. As industry continues to demand an increase in server processing power, high-current operation presents challenges to designing high-efficiency POL converters. Increased conduction and overlap losses induce significant power losses in high-power modes. The introduction of Gallium-Nitride (GaN) switching devices and the implementation of zero-current-switching (ZCS) topologies for POL applications have the potential to improve converter efficiency while maintaining or surpassing the industrial power density standard. This thesis addresses the challenges presented by high-current operation by demonstrating an accurate power loss model of the quasi-resonant zero-current-switching (QR-ZCS) buck converter and presents a comparison between the synchronous buck and QR-ZCS buck in a 5-1.8 V POL application.
Recommended Citation
Bouler, Douglas Wayne III, "GAN-BASED POINT-OF-LOAD CONVERTERS FOR DATA CENTER APPLICATIONS. " Master's Thesis, University of Tennessee, 2018.
https://trace.tennessee.edu/utk_gradthes/5341