Patent ID: 7965063

Claim:
An inverter generator having a generator unit that is driven by an internal combustion engine and generates alternating current, a converter that is connected to the generator unit and converts the alternating current to direct current, an inverter that is connected to the converter and converts the direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that drives the switching elements with a PWM signal generated using a reference sine wave of a desired output voltage waveform and a carrier at every control cycle and makes the alternating current converted in the inverter to the alternating current of a predetermined frequency, comprising: a current detector that detects the alternating current supplied to the electrical load; a direct current voltage detector that detects voltage of the direct current converted by the converter; an alternating current voltage detector that detects voltage of the alternating current supplied by the inverter; an output voltage corrector that corrects the detected voltage of the alternating current as a predetermined value based on a coefficient set based on the detected voltage of the direct current, when the detected alternating current is greater than a threshold value; and a PWM signal corrector that corrects the PWM signal by the predetermined value at the control cycle, such that the detected alternating current becomes less than the threshold value.