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This paper is concerned with the thermal models which can physically reflect the heat-flow paths in a lightweight three-phase half-bridge two-level SiC power module with six MOSFETs and can be used for coupled electrothermal simulation. The finite-element (FE) model was first evaluated and calibrated to provide the raw data for establishing the physical resistor–capacitor (RC) network model. It was...
High-density packaging of fast-switching power semiconductors typically requires low thermal resistance and parasitic inductance. High-density packaging of high-voltage semiconductors, such as 10 kV SiC MOSFETs, has the added challenge of maintaining low electric field concentration in order to prevent premature dielectric breakdown. This work proposes a wire-bond-less, sandwich structure with embedded...
High-density packaging of fast-switching power semiconductors typically requires low parasitic inductance, high heat extraction, and high thermo-mechanical reliability. High-density packaging of high-voltage power semiconductors, such as 10 kV SiC MOSFETs, also requires low electric field concentration in order to prevent premature dielectric breakdown. Consequently, in addition to the usual electromagnetic,...
A novel approach for controlling series strings of voltage driven devices (e.g. JFET, MOSFET, IGBT) is presented that allows high voltage switches to be constructed from lower voltage devices. The approach allows controlled voltage sharing under steady-state and transient conditions and is achieved using a simple passive gate-side control circuit of resistors, capacitors, diodes and Zener diodes....
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