Switching control circuit, drive control device, and switching control method

A switching control circuit configured to control switching of a first switching device of a bridge circuit, the bridge circuit including

• the first switching device on a power supply side thereof, and
• a second switching device on a ground side thereof and being coupled to the first switching device in series through a load,
• the switching control circuit comprising:
• an output circuit configured to delay a first drive signal inputted to the switching control circuit for turning off the first switching device for a predetermined period, and output a resultant signal, when a current flowing through the second switching device becomes an overcurrent and the second switching device is turned off;
• and
• a drive circuit configured to drive the first switching device in response to an output of the output circuit, wherein
• the predetermined period of time is longer than at least one of
• a first period of time from when the first drive signal is inputted until when a current flowing through the first switching device falls below the overcurrent,
• a second period of time from when the first drive signal is inputted until when a voltage applied to the first switching device reaches a value that is lower than or equal to an absolute maximum rating of a voltage value of the first switching device, or
• a third period of time from when the first drive signal is inputted until when the current falls below a current value at which avalanche breakdown of the first switching device occurs.