A circuit configuration, comprising: a DC source for providing a DC voltage; a boost converter for boosting the DC voltage provided by said DC source; and an intermediate circuit connected between the outputs of said boost converter, wherein said DC source comprises a first DC source having a first output and a second output, and a second DC source having a first output and a second output, wherein said first output of said first DC source is connected to one side of said intermediate circuit, and said second output of said second DC source is connected to the other side of said intermediate circuit; and said boost converter is provided as a common boost converter for boosting both the DC voltage provided by said first DC source and the DC voltage provided by said second DC source, characterized in that said common boost converter includes a series circuit having a first inductance and a first rectifier element and being connected between said second output of said first DC source and said other side of said intermediate circuit, and a series circuit having a second inductance and a second rectifier element and being connected between said first output of said second DC source and said one side of said intermediate circuit capacitor; said common boost converter includes a common switching element being formed by at least two power switches (14a, 14b) which are connected between the connection between said first inductance and said first rectifier element and the connection between said second inductance and said second rectifier element; and said intermediate circuit is formed by at least two capacities (18a, 18b) connected in series. a DC source for providing a DC voltage; a boost converter for boosting the DC voltage provided by said DC source; and an intermediate circuit connected between the outputs of said boost converter, wherein said DC source comprises a first DC source having a first output and a second output, and a second DC source having a first output and a second output, wherein said first output of said first DC source is connected to one side of said intermediate circuit, and said second output of said second DC source is connected to the other side of said intermediate circuit; and said boost converter is provided as a common boost converter for boosting both the DC voltage provided by said first DC source and the DC voltage provided by said second DC source, characterized in that said common boost converter includes a series circuit having a first inductance and a first rectifier element and being connected between said second output of said first DC source and said other side of said intermediate circuit, and a series circuit having a second inductance and a second rectifier element and being connected between said first output of said second DC source and said one side of said intermediate circuit capacitor; said common boost converter includes a common switching element being formed by at least two power switches (14a, 14b) which are connected between the connection between said first inductance and said first rectifier element and the connection between said second inductance and said second rectifier element; and said intermediate circuit is formed by at least two capacities (18a, 18b) connected in series.