Discharge control circuit

A discharge control circuit, comprising:

• a first gate voltage output circuit configured to output a first gate voltage supplied to a transistor connected to a capacitive load;
• a second gate voltage output circuit configured to output a second gate voltage supplied to the transistor;
• and
• a switching control circuit configured to switch supply of the first gate voltage and the second gate voltage to the transistor,
• wherein the first gate voltage output circuit comprises:
• a voltage supply circuit configured to supply a voltage to a gate of the transistor until the transistor changes from an off state to an on state;
• a current supply circuit configured to supply a current to the gate of the transistor;
• and
• a power supply circuit connected to the voltage supply circuit and the current supply circuit,
• the second gate voltage output circuit is configured to output a voltage at a constant level as the second gate voltage, and
• the switching control circuit is configured to perform control to supply the second gate voltage after supplying the first gate voltage to the transistor.