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phD
Non-invasive characterization of power circuits by near-field probes
The optimization of power modules is made complex by the parasitic elements of the circuits (inductances, capacitances, resistance) which, when subjected to switching of high currents and voltages with high speeds (di/dt, dV/dt ), cause overvoltages or current oscillations which can be damaging to the system and components (accelerated aging, early failures, breakdown, thermal runaway,...
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phD
Development of integrated GaN functions for electrical energy conversion
The integration of GaN (Gallium Nitride) components in power applications requires take into account the very fast switching speed of these transistors. Furthermore, if we wish switching currents of the order of several tens of amperes it is essential to bring them as close as possible the power element control circuit. This rapprochement can be...
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phD
Electromagnetic compatibility converter optimization with wide band gap devices for frequency increase
Power Electronics systems aims at converting one shape of Energy into another. From very low power, such as USB power delivery (hundreds of watts) to high power, like electric vehicle drivetrain (hundreds of kW, power scale is large. Power Electronics systems are everywhere, this is why such systems must be optimized to be efficient, compact,...