DC/AC inverter with adjustable gate-source voltage

摘要

The present invention is a DC/AC inverter for converting a DC supply voltage signal to an AC voltage signal. The DC/AC inverter includes a drive circuit, a switch circuit, a transformer circuit and an auxiliary circuit. The drive circuit provides a first drive signal and a second drive signal. The switch circuit includes a high-side transistor for receiving the first drive signal from the drive circuit and a low-side transistor for receiving the second drive signal from the drive circuit. The switch circuit further receives the DC supply voltage signal and generates a voltage signal. The transformer circuit receives the voltage signal from the switch circuit and transforms it to the AC voltage signal. The auxiliary circuit adjusts a gate-source voltage of the high-side transistor and thus enables the DC/AC inverter to be applicable to a wide DC voltage supply range.