Global ETD Search

161	Modeling and analysis of reverse recovery in PiN power diodes in series Landowshi, Matthew M. 01 January 2008 (has links) Moore's Law influences more than just the speed of the latest microprocessor. The law drives many facets of the semiconductor realm. As Moore's Law continues to prevail, switching frequencies for electronics will rise. These increased switching frequencies will cause transient losses to be augmented, especially for power electronics. However, there has been a lack of work on how to improve the most simple semiconductor power device, the PiN diode. Therefore, considerable effort has been made to reduce switching losses in modern power semiconductor devices. Power diodes are used as a building block for almost all power electronics, especially boost converters for power factor correction. The re5earch presented in this thesis demonstrates that switching losses will be reduced when a power diode is replaced by two lower voltage diodes arranged in series. One such company, Q-speed, is already implementing such a technique [l]. The company is using two fast recovery diodes on one integrated circuit. Q-speed's results were comparable to more expensive methods to reduce switching losses such as the use of exotic materials like silicon-carbide. There have been many models to date for the PiN diode, but no research ha5 been published about this innovative idea. Research gathered in this thesis from extensive TCAD simulations and experiments will enlighten the power semiconductor field to this interesting approach. Electrical and Computer Engineering
162	Some experimental studies of n-type GaN and Au/GaN contacts Wang, Ke, 王科 January 2002 (has links) published_or_final_version / abstract / toc / Physics / Master / Master of Philosophy Gallium nitride. Ohmic contacts. Diodes, Schottky-barrier.
163	Improving the performance of organic optoelectronic devices by optimizing device structures Kwong, Chung-yin, Calvin., 鄺頌賢. January 2004 (has links) published_or_final_version / abstract / Electrical and Electronic Engineering / Doctoral / Doctor of Philosophy Light emitting diodes. Solar cells. Optoelectronic devices.
164	Device optimization studies of organic light emitting devices Hui, Kwun-nam., 許冠南. January 2005 (has links) published_or_final_version / abstract / Electrical and Electronic Engineering / Master / Master of Philosophy Light emitting diodes. Electroluminescent devices. Organic compounds.
165	Light-emitting diodes incorporating microdisks and microspheres Hui, Kwun-nam., 許冠南. January 2008 (has links) published_or_final_version / Electrical and Electronic Engineering / Doctoral / Doctor of Philosophy Light emitting diodes. Microspheres. Gallium nitride.
166	A comprehensive approach to high efficiency light emitters Fu, Wai-yuen., 傅惠源. January 2009 (has links) The Best MPhil Thesis in the Faculties of Dentistry, Engineering, Medicine and Science (University of Hong Kong), Li Ka Shing Prize,2008-2009 / published_or_final_version / Electrical and Electronic Engineering / Master / Master of Philosophy Photonic crystals.
167	Low coherence fibre optic speckle interferometry Balboa, I. January 2000 (has links) No description available. 535
168	OPTICAL MAGNETIC FIELD PROBE WITH LIGHT EMITTING DIODE SENSOR (RADIO FREQUENCY, FARADAY'S LAW, INCANDESCENT, TEMPERATURE COMPENSATION, INDUCTRON) Gross, Eugene Joseph, 1960- January 1986 (has links) No description available. Electromagnetic fields -- Measurement. Biosensors. Light emitting diodes.
169	Avalanche multiplication in Alâ†xGaâ†1â†-â†xAs Plimmer, Stephen Anthony January 1997 (has links) No description available. 510 Diodes; ionisation; Monte Carl model
170	Donor-assisted resonant tunnelling in semiconductor heterostructures Sakai, Joao Wesley Lopes January 1997 (has links) No description available. 530.41 Quantum well; Double Barrier Diodes

Search results