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Development And Operation Of Buried Channel Charge Coupled Devices In 6h Silicon Carbide, Scott T. Sheppard, Michael R. Melloch, James A. Cooper Jr.
Development And Operation Of Buried Channel Charge Coupled Devices In 6h Silicon Carbide, Scott T. Sheppard, Michael R. Melloch, James A. Cooper Jr.
Department of Electrical and Computer Engineering Technical Reports
Silicon carbide is a wide bandgap semiconductor that is well suited for high power, high temperature electronic devices due to its remarkable electronic and thermal properties. Photosensitive devices in the 6H polytype of Sic have also been demonstrated, showing high sensitivity in ultraviolet wavelengths near 270 nm. Furthermore, the native oxide on Sic is silicon dioxide, meaning that SIC can be thermally oxidized to form a high quality gate dielectric, making metal-oxide-semiconductor (MOS) devices possible. These qualities make silicon carbide ideal for constructing UV sensitive CCD imagers. 'This work investigates the feasibility for developing imagers in Sic through the fabrication …
The Analysis, Simulation, And Implementation Of Control Strategies For A Pulsewidth Modulated Induction Motor Drive, Scott D. Roller, Chee Mun Ong
The Analysis, Simulation, And Implementation Of Control Strategies For A Pulsewidth Modulated Induction Motor Drive, Scott D. Roller, Chee Mun Ong
Department of Electrical and Computer Engineering Technical Reports
The purpose of this research is to analyze, simulate, and compare two different control strategies for a variable speed pulsewidth modulated induction motor drive, and implement one of the control strategies using the Motorola MC68F333 inicrocontroller. The two strategies examined in this technical report are volts per hertz control and field oriented control. The benefits and limitations of each strategy are examined through theoretical analysis. Verification of the analysis is performed by simulating thc strategies usmg the Simulink toolbox of Matlab. The Motorola microcontroller is then used to generate both edge-aligned and center-aligned pulsewidth modulated drive signals for a three …