Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Active Gate Driver"”.
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Evaluation of Voltage-Controlled Active Gate-Drivers for SiC MOSFET Power Semiconductors
… (EMI) related phenomena. Conventional gate-drivers are very limited in the way that they can control this high dv/dt, and this leads to the use of active gate-drivers. This thesis will explore the use of an active voltage-controlled gate-driver for SiC devices, utilizing transiently a …
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Reliability and Lifetime Assessment and Enhancement of SIC MOSFETs in an H-ANPC Inverter
This thesis investigates the lifetime and reliability assessment of power semiconductor devices to address the growing demand for efficient and reliable power converters. Accurate evaluation requires replicating real-world stress conditions, achieved through various Accelerated Tests (ATs). A …
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Switching Trajectory Control for High Voltage Silicon Carbide Power Devices with Novel Active Gate Drivers
… the system reliability.</p> <p>However, the gate drivers for high voltage SiC devices are not available on the market. Also, the characteristics of the third generation 10 kV SiC MOSFETs with XHV-6 package which are developed by CREE are approaching those of an ideal switch with high dv/dt …
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High-Frequency Oriented Design of Gallium-Nitride (GaN) Based High Power Density Converters
… GaN HEMT under research, including narrow safe gate operating area, increased switching overshoot, increased electromagnetic interference (EMI) in the gate loop and the power stages, the lack of the modules of packages for high current application, high gate oscillation under parallel operation. …
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Design, Optimization, and Integration of a SiC-Based Traction Inverter with Enhanced Current Sharing for Paralleled Discrete Devices
… targets, this dissertation first investigates one of the critical challenges in high-power inverters: current sharing among paralleled devices. In Chapter 2, the current-sharing mechanisms are comprehensively analyzed, and mathematical models are developed to describe both dynamic and …
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Víceúrovňový měnič s aktivními hradlovými budiči pro Fault Ride-Through
Tato práce se zabývá víceúrovňovými měniči, popisuje jejich výhody a současné/potenciální budoucí aplikace. Zaměřuje se na „Nested Neutral Point Piloted (NNPP)“ topologii a vývoj algoritmu řízení s aktivním vyrovnáváním napětí kondenzátoru a pokročilou vektorovou modulací pro tuto topologii. Tento …