Inverter

The invention relates to an inverter for converting a DC voltage into an AC voltage having one or more phases, comprising an intermediate DC circuit having a first and a second DC capacitor unit connected in series between a first and a second terminal of the intermediate DC circuit, and a common earth terminal of the intermediate circuit, and at least one subcircuit for generating one phase of the alternating voltage, each subcircuit comprising: a first and a second auxiliary switch, each with a diode connected in parallel, an AC node for supplying a pulsed voltage, the first and second auxiliary switches being connected in series between the common earth terminal of the intermediate circuit and the AC node and the diodes of said power switches being connected to each other with opposite forward directions, and each of the subcircuits comprises two power switches, each with a diode connected in parallel, wherein said two power switches are connected in series between the first and second terminal of the intermediate DC circuit, connected to a common connection point at the AC node and the diodes of said power switches being connected to each other with the same forward direction.