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In this paper, four symmetrical switching patterns for high-frequency three-phase quasi-Z-source inverters are proposed. Each pattern results in different values of currents during semiconductor switching processes. Therefore, an adaptive pulse width modulator is introduced to perform operation at minimum switching losses, related especially to shoot-through states. On the other hand, changes in pulse...
This paper presents the design process of a 312-kVA three-phase silicon carbide inverter using ten parallel-connected metal–oxide–semiconductor field-effect-transistor power modules in each phase leg. The design processes of the gate-drive circuits with short-circuit protection and power circuit layout are also presented. Measurements in order to evaluate the performance of the gate-drive circuits...
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