Search for dissertations about: "Power electronic transistor"
Showing result 1 - 5 of 118 swedish dissertations containing the words Power electronic transistor.
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1. Waste-heat Recovery Using Thermoelectricity and Silicon Carbide Power Electronics
Abstract : Energy consumption in the world has increased continuously due to a growing population and increased energy consumption per capita. Moreover, the largest part of consumed energy still comes from fossil sources which in 2016 was more than 130 PWh. READ MORE
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2. On Reliability of SiC Power Devices in Power Electronics
Abstract : Silicon Carbide (SiC) is a wide-bandgap (WBG) semiconductor materialwhich has several advantages such as higher maximum electric field, lowerON-state resistance, higher switching speeds, and higher maximum allowablejunction operation temperature compared to Silicon (Si). In the 1.2 kV - 1. READ MORE
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3. Design and Characterization of RF-Power LDMOS Transistors
Abstract : In mobile communication new applications like wireless internet and mobile video have increased the demand of data-rates. Therefore, new more wideband systems are being implemented. READ MORE
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4. High-efficiency Power Amplification Techniques for Wireless Transmitters
Abstract : The low efficiency of existing power amplifiers (PAs) is causing excessive energy consumption in wireless systems. Improving the PA efficiency is therefore of great environmental and economical importance. READ MORE
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5. Electro-thermal simulations and measurements of silicon carbide power transistors
Abstract : The temperature dependent electrical characteristics of silicon carbide power transistors – 4H-SiC metal semiconductor field-effect transistors (MESFETs) and 4H-SiC bipolar junction transistors (BJTs) have been investigated through simulation and experimental approaches. Junction temperatures and temperature distributions in devices under large power densities have been estimated. READ MORE