An induction heating device, comprising: a working coil; an inverter comprising a first switching element and a second switching element that are configured to perform a switching operation to thereby apply resonant current to the working coil; a gate driver comprising a first sub-gate driver and a second sub-gate driver that are configured to be driven based on a drive voltage received from an external power supply, that are connected to the inverter, and that are configured to control the switching operation, the first sub-gate driver and the second sub-gate driver being configured to turn on and turn off the first switching element and the second switching element, respectively; and a protection circuit disposed between the inverter and the gate driver, the protection circuit comprising: a first resistor disposed between a gate terminal of the first switching element and an output terminal of the first sub-gate driver, a second resistor connected electrically in parallel to the first resistor, a protection circuit resistor (Rpt) disposed between a reference voltage terminal (Vs) of the first sub-gate driver and a first node between the first switching element and the second switching element, a protection circuit diode (Dpt) disposed between a ground and a second node between the protection circuit resistor (Rpt) and the reference voltage terminal (Vs), and a bootstrap circuit disposed between the second node and the external power supply. a working coil; an inverter comprising a first switching element and a second switching element that are configured to perform a switching operation to thereby apply resonant current to the working coil; a gate driver comprising a first sub-gate driver and a second sub-gate driver that are configured to be driven based on a drive voltage received from an external power supply, that are connected to the inverter, and that are configured to control the switching operation, the first sub-gate driver and the second sub-gate driver being configured to turn on and turn off the first switching element and the second switching element, respectively; and a protection circuit disposed between the inverter and the gate driver, the protection circuit comprising: a first resistor disposed between a gate terminal of the first switching element and an output terminal of the first sub-gate driver, a second resistor connected electrically in parallel to the first resistor, a protection circuit resistor (Rpt) disposed between a reference voltage terminal (Vs) of the first sub-gate driver and a first node between the first switching element and the second switching element, a protection circuit diode (Dpt) disposed between a ground and a second node between the protection circuit resistor (Rpt) and the reference voltage terminal (Vs), and a bootstrap circuit disposed between the second node and the external power supply. a first resistor disposed between a gate terminal of the first switching element and an output terminal of the first sub-gate driver, a second resistor connected electrically in parallel to the first resistor, a protection circuit resistor (Rpt) disposed between a reference voltage terminal (Vs) of the first sub-gate driver and a first node between the first switching element and the second switching element, a protection circuit diode (Dpt) disposed between a ground and a second node between the protection circuit resistor (Rpt) and the reference voltage terminal (Vs), and a bootstrap circuit disposed between the second node and the external power supply.