Sökning: "Mietek Bakowski"

Hittade 2 avhandlingar innehållade orden Mietek Bakowski.

1. 1. Simulation and Electrical Evaluation of 4H-SiC Junction Field Effect Transistors and Junction Barrier Schottky Diodes with Buried Grids

   Författare :Jang-Kwon Lim; Hans-Peter Nee; Mietek Bakowski; Ichiro Omura; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Silicon carbide SiC ; junction field-effect transistors JFETs ; junction barrier schottky diode JBS ; schottky barrier diode SBD ; buried-grid BG technology; simulation; implantation; epitaxial growth; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Silicon carbide (SiC) has higher breakdown field strength than silicon (Si), which enables thinner and more highly doped drift layers compared to Si. Consequently, the power losses can be reduced compared to Si-based power conversion systems. Moreover, SiC allows the power conversion systems to operate at high temperatures up to 250 oC. LÄS MER

3. 2. Multiphysics Characterization of SiC Power Modules

   Författare :Yafan Zhang; Hans-Peter Nee Nee; Mietek Bakowski; Ilja Belov; Alberto Castellazzi; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Silicon carbide; power electronics; power electronics packaging; experiment; modeling and simulation; computational fluid dynamics; finite element analysis; multiphysics; Kiselkarbid; effektelektronik; effektelektronisk kapsling; experiment; modellering och simulering; flödesdynamisk numerisk modellering; finit-element-analys; multifysik; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : This thesis proposes several novel silicon carbide power module design concepts. The goal has been to address the problems with the present designs. The electrical, thermal, and thermomechanical performances of the demonstrators have been evaluated along with presentations of methodologies of experimental and numerical characterizations. LÄS MER