POWER SEMICONDUCTOR MODULE FOR A TRACTION CONVERTER

DRIVE June 11, 2026
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A power semiconductor module for a traction converter includes a semiconductor switch with a drain terminal, source terminal, Kelvin source terminal, and gate terminal, a first driver path for connecting the gate terminal to a driver circuit, and a second driver path for connecting the source terminal to the driver circuit, in order to switch the semiconductor switch, a source path between the Kelvin source terminal and the source terminal, wherein the source path contains an additional source terminal, and wherein the source path forms a parasitic inductor between the Kelvin source terminal and the additional source terminal, and a resistor unit in the second driver path that is connected in parallel to the parasitic inductor to conduct voltage generated by the parasitic inductor during a current-changing phase to the driver circuit to limit the current change rate while switching the semiconductor switch.

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