Search for dissertations about: "SiC inverter"

Showing result 1 - 5 of 10 swedish dissertations containing the words SiC inverter.

  2. 1. SiC CMOS and memory devices for high-temperature integrated circuits

    Author : Mattias Ekström; Carl-Mikael Zetterling; B. Gunnar Malm; Tobias Erlbacher; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bismuth titanate Bi4Ti3O12 ; CMOS; ferroelectric capacitor; field oxide; inverter; metallisation; metal oxide semiconductor field effect transistor MOSFET ; ohmic contacts; ring oscillator; semiconductor processing; silicon carbide 4H-SiC ; CMOS; ferroelektrisk kondensator; fältoxid; halvledartillverkning; inverterare; kiselkarbid 4H-SiC ; metallisering; MOSFET; ohmska kontakter; ringoscillator; vismuttitanat Bi4Ti3O12 ; Informations- och kommunikationsteknik; Information and Communication Technology;

    Abstract : High-temperature electronics find use in extreme environments, like data logging in downhole drilling for geothermal energy production, inside of high-temperature turbines, industrial gas sensors and space electronics. The simplest systems use a sensor and a transmitter, but more advance electronic systems would additionally require a microcontroller with memory. READ MORE

  4. 2. On SiC JFET converters: components, gate-drives and main-circuit conditions

    Author : Björn Ållebrand; Hans-Peter Nee; Lutz Josef; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power JFET; SiC JFET; Silicon Carbide; PSpice; Simulations; Gate drive; Blanking times; Normally-on; Modeling; Commutation transients; Electric power engineering; Elkraftteknik;

    Abstract : This thesis deals with Silicon Carbide Junction Field Effect Transistors (SiC JFETs) - how to use them to their full potential in power electronic circuits, how to model them in a power electronic simulation program, and how a gate drive can be built. To fully utilize the low on-state losses of SiC JFETs it is suggested that SiC JFETs should not be equipped with anti-parallel diodes. READ MORE

  5. 3. Inverter Design for SiC-based Electric Drive Systems with Optimal Redundant States Control of Space Vector Modulation

    Author : Georgios Mademlis; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric Vehicle; Common Mode Voltage; Power Hardware-in-the-Loop; Tidal power; Voltage balancing; Silicon Carbide SiC ; Medium Voltage Converters; Multilevel; Neutral Point Clamped NPC ; Maximum Power Point Tracking MPPT ; Space Vector Modulation;

    Abstract : The need for inverters with ever increasing power density and efficiency has recently become the driving factor for research in various fields. Increasing the operating voltage of the whole drive system and utilizing newly developed SiC power switches can contribute towards this goal. READ MORE

  6. 4. Silicon Carbide BipolarTechnology for High Temperature Integrated Circuits

    Author : Luigia Lanni; Zetterling Carl-Mikael; Sei-Hyung Ryu; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; silicon carbide SiC ; bipolar junction transistor BJT ; current gain; surface passivation; SiC etching; complementary bipolar; lateral PNP; Darlington transistors; SPICE modeling; high-temperature; integrated circuits; emitter coupled logic ECL ;

    Abstract : The availability of integrated circuits (ICs) capable of 500 or 600° C operation can be extremely beneficial for many important applications, such as transportation and energy sector industry. It can in fact enable the realization of improved sensing and control of turbine engine combustion leading to better fuel efficiency and reduced pollution. READ MORE

  7. 5. Energy Efficiency of an Electric Vehicle Propulsion Inverter Using Various Semiconductor Technologies

    Author : Ali Rabiei; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drive cycles; Vehicle applications; Dc-link; Electric machines; Loss calculation; Power electronics; Silicon carbide; Current vector control; Nonlinear Optimization; Energy efficiency;

    Abstract : In this Licentiate thesis, various solutions to improve the efficiency in the electrical vehicledrive drive line such as in the propulsion inverter and in the electric machine, are proposedand their benefits are quantified from an energy efficiency point of view. The efficiencyanalysis is based on modeling of a power electronics inverter, an electric machine and abattery in various drive cycles of an electric vehicle. READ MORE