A converter system for transferring power comprising: - a first DC-DC module, - a second DC-DC module, - a first control unit, and - a second control unit separated from the first control unit, the first DC-DC module being connected to a first high voltage interface of a high voltage system and to a first low voltage interface of a low voltage system, the second DC-DC module being connected to a second high voltage interface of the high voltage system and to a second low voltage interface of the low voltage system, the first high voltage interface and the second high voltage interface operating independent of each other, the first control unit being connected to the first DC-DC module and configured to separate the connection between the first DC-DC module and the first high voltage interface and/or the first low voltage interface and to supply power via the second DC-DC module in case of a failure in the first DC-DC module, and the second control unit being connected to the second DC-DC module and configured to separate the connection between the second DC-DC module and the second high voltage interface and/or the second low voltage interface and to supply power via the first DC-DC module in case of a failure in the second DC-DC module. - a first DC-DC module, - a second DC-DC module, - a first control unit, and - a second control unit separated from the first control unit, the first DC-DC module being connected to a first high voltage interface of a high voltage system and to a first low voltage interface of a low voltage system, the second DC-DC module being connected to a second high voltage interface of the high voltage system and to a second low voltage interface of the low voltage system, the first high voltage interface and the second high voltage interface operating independent of each other, the first control unit being connected to the first DC-DC module and configured to separate the connection between the first DC-DC module and the first high voltage interface and/or the first low voltage interface and to supply power via the second DC-DC module in case of a failure in the first DC-DC module, and the second control unit being connected to the second DC-DC module and configured to separate the connection between the second DC-DC module and the second high voltage interface and/or the second low voltage interface and to supply power via the first DC-DC module in case of a failure in the second DC-DC module. the first DC-DC module being connected to a first high voltage interface of a high voltage system and to a first low voltage interface of a low voltage system, the second DC-DC module being connected to a second high voltage interface of the high voltage system and to a second low voltage interface of the low voltage system, the first high voltage interface and the second high voltage interface operating independent of each other, the first control unit being connected to the first DC-DC module and configured to separate the connection between the first DC-DC module and the first high voltage interface and/or the first low voltage interface and to supply power via the second DC-DC module in case of a failure in the first DC-DC module, and the second control unit being connected to the second DC-DC module and configured to separate the connection between the second DC-DC module and the second high voltage interface and/or the second low voltage interface and to supply power via the first DC-DC module in case of a failure in the second DC-DC module.