INVERTER DEVICE

Provided is an inverter device that quickly detects an abnormality of a power device, which is an output unit of the inverter device, and of gate drive to be able to safely control and stop the inverter device. The inverter device includes a gate voltage detection unit that detects a gate voltage VG of the power device with respect to a given threshold voltage, and a drain voltage detection unit that detects a drain voltage with respect to a given threshold voltage. A microcontroller compares a gate drive signal with a gate voltage detection signal to make a diagnosis and compares the gate drive signal with a drain voltage detection signal to make a diagnosis, thereby making a diagnosis on normal drive and detection of the gate voltage VG and on normal drive and detection of the power device. In addition, by generating a gate drive signal to the power device, from a gate voltage detection signal from a counter power device, a dead time is reduced.