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Implement Gate Drivers for 3-Level NPC2 Modules with Reverse-Blocking IGBTs (.PDF Download)

Three-level converter topologies can lead to reduced total harmonic distortion and, hence, minimize the size and cost of filtering at the output stage. However, the best-known configuration—Neutral Point Clamped (NPC1)—usually increases the required number of switching devices (IGBTs and diodes), which adds to the complexity of the system. However, a new topology, NPC2, based on reverse-blocking IGBTs makes it possible to reduce the power semiconductor count...

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