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Digitally Controlled Energy Harvesting Power Management System
(2012-03-20)
This thesis discusses a power electronics module (PEM) that is used to extract power from a human energy harvesting generator according to the user’s desired input power, and stores all of the extracted energy into an ...
Power Converters for Electric Vehicles
(2012-01-18)
This thesis presents topologies and control methods to improve the efficiency and dynamic response of Electric Vehicle (EV) power converters. There are three main converters in an EV power conditioning system: a plug-in ...
An Islanding Detection Method based on Impedance Estimation and Grid Identification for Grid-Tie Distributed Power Generation Systems
Power system policies are broadly on track to escalate the use of renewable energy resources in electric power generation. Integration of dispersed generation to the utility network not only intensifies the benefits of ...
Electrical and Thermal Design of High Efficiency and High Power Density Power Converters
This thesis investigates high power density power converters from two approaches: electrical circuit and module design, and thermal management and mitigation. Three specific topics are studied in this thesis: Point-of-Load ...
New Technologies to Improve the Transient Response of Buck Converters
(2010-02-01)
As the speed and power demands on Buck converters continue to increase, it has become time to replace the linearly-controlled conventional Buck converter. Digital circuits, such as microprocessors, are requiring higher ...
MOSFET Current Source Gate Drivers, Switching Loss Modeling and Frequency Dithering Control for MHz Switching Frequency DC-DC Converters
(2008-02-29)
The power density of a switching converter is dependent on the size of the power circuit components. Converters are operated in the hundreds of kHz to achieve high power density since the size of the converter reactive ...
Novel Digital Controller for Multi Full-Bridge DC/DC Converter
(2007-09-27)
Distributed generation that utilizes 5-10kW Solid Oxide Fuel Cells requires power electronics to optimize the overall system efficiency while reducing the cost. The Adaptive Energy Zero-Voltage-Switching Phase-Shift-Modulated ...
Control Techniques for a Single-Phase Bi-Directional Full-Bridge Active Rectifier for Vehicle-to-Grid and Grid-to-Vehicle Applications
(2014-07-04)
As electric vehicles (EV) continue to gain market traction, more research is being conducted in the control of the power conditioning system. This thesis focuses on control strategies for the front-end AC/DC converter. ...
Asynchronous Complementary Dual Channel Current Source Gate Driver for Synchronous Buck Converters
Currently there is a push for higher switching frequency DC-DC converters, especially in mobile and computer applications. Higher frequency operation allows for better transient performance and a reduction in the size of ...
Novel High Power Density Topologies and Control for the Point-of-Load (POL) Application
(2016-04-20)
High performance microprocessors are promoting the development of modern electronic devices such as smart phones and tablets. These microprocessors have stricter requirement on the power supplies in terms of efficiency and ...