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Cross-turn-on happens in a phase leg comprising high-side switch(es) and low-side switch(es) when the turn-on of one switch inadvertently triggers the channel current to flow in the off-switch. The terminal current does not reflect the internal channel current because of the numerous parasitic inductances from the package. Detection of the cross-turn-on in a power module is difficult since the dice...
Power modules with well-behaved terminal waveforms could still have their dice suffering from false triggering. Immunities to false triggering and current unbalance, and switching energy of four commercial 1.2 kV SiC modules (modules A, B, C, and D) are compared by studying the simulated channel current of each MOSFET die in the presence of packages' parasitic impedances. For module B, gate inductance...
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