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The Advanced-ANPC converter is designed to withstand almost every possible short-circuit failure of the semiconductors in comparison to state-of-the-art (A)NPC converters. The idea behind this concept is an additional short-circuit inductor to improve the robustness against faults. The presented investigations within this paper examine all the possible short-circuit situations and their effects for...
Short-circuit detection is one important feature of a gate-drive unit and a solution without a collector sense is preferable. With monitoring the gate-emitter voltage, a short can be easily detected. A circuit, which detects and turns off the short, and measurements for different shorts on high-voltage IGBTs are presented.
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