A DC-DC converter circuit arrangement consisting of at least one multiphase DC-DC converter for transporting energy between two electrical systems. The arrangement may include several converter circuits whereby each features at least one first control element that can be regulated. A controller can produce several drive signals that have different phases. One switched mode operation of a converter circuit of the multiphase DC-DC converter can be controlled with each drive signal. The switched mode operation of each converter circuit of each subsequent multiphase DC-DC converter can be controlled by means of a drive signal, which can be produced by the controller. The controller is designed and equipped in such a way that it can enable or disable the energy transport by means of one of the multiphase DC-DC converter.