Abstract: An inverter device includes an inverter circuit, an inverter driving unit, and a clamp diode. The inverter circuit includes an upper arm unit and a lower arm unit connected in series. The upper arm unit and the lower arm unit include switching elements that drive a load. The inverter driving unit includes a high-withstand-voltage IC that drives the switching elements of the upper arm unit and the lower arm unit. The high-withstand-voltage IC has a first terminal for supplying a reference voltage to the lower arm unit and a second terminal for supplying a high-voltage to the upper arm unit. The clamp diode clamps a potential difference between the first terminal and the second terminal.

Abstract: An inverter device includes an inverter circuit including a bridge circuit connected between a positive electrode and a negative electrode of a direct current power supply. The bridge circuit includes an upper arm unit and a lower arm unit connected in series. The upper arm unit includes a upper arm switching element and a diode connected back-to-back to each other. The lower arm unit includes a lower arm switching element and a diode connected back-to-back to each other. The inverter device further includes an inverter driving unit including a high compression IC that drives the upper arm switching element and the lower arm switching element; and a clamp unit that clamps a difference in potential between a lower-arm driving reference supply terminal of the high compression IC and an upper arm driving high-pressure side power supply terminal of the high compression IC.