Semiconductor module

A semiconductor module comprising:

• a first switching device coupled to a first line in the semiconductor module, the first line being configured to receive a power supply voltage;
• a terminal coupled to the first switching device, a first voltage corresponding to a first current flowing through the first switching device being generated at the terminal while the first switching device is on;
• a second switching device coupled to the first line, the second switching device being configured to allow a second current corresponding to the first current to flow therethrough;
• a voltage generation circuit configured to apply, to a second line in the semiconductor module, a second voltage that is lower than the power supply voltage by a predetermined voltage;
• a resistor coupled between the second switching device and the terminal, a third voltage corresponding to the second current being generated across the resistor;
• a reference voltage circuit coupled to the terminal, the reference voltage circuit being configured to generate a fourth voltage;
• and
• a comparator circuit coupled between the first line and the second line, the comparator circuit being configured to determine whether the first switching device is in an overcurrent state based on a comparison between the third voltage and the fourth voltage.