Patent ID: 9036388
Filing Date: 2015-05-19
Classification: H02M

Abstract:
1. A semiconductor device that is applied to a three-level voltage-type inverter, comprising: a first IGBT to which a diode is connected in reverse parallel and which has a collector connected to a positive terminal of a DC circuit; a second IGBT to which a diode is connected in reverse parallel and which has an emitter connected to a negative terminal of the DC circuit; and an AC switch that is connected between a connection point between an emitter of the first IGBT and a collector of the second IGBT and a neutral terminal between the positive terminal and the negative terminal of the DC circuit, wherein the first IGBT, the second IGBT, and the AC switch are accommodated in one package, the AC switch is formed by connecting a collector of a third IGBT to which a diode is connected in reverse parallel and a collector of a fourth IGBT to which a diode is connected in reverse parallel, and an intermediate terminal is provided between the collector of the third IGBT and the collector of the fourth IGBT, the intermediate terminal is configured and arranged to connect to a component outside of the package containing the first IGBT, the second IGBT, and the AC switch, and the intermediate terminal has a portion that is exposed to outside of the package.