ON-BOARD ELECTRICAL SYSTEM AND METHOD FOR OPERATING AN ON-BOARD NETWORK

An electrical on-board power system for an electrically driven transportation vehicle having a traction battery with a first battery terminal and a second battery terminal, a first current path between the first battery terminal and a first terminal , and a second current path between the second battery terminal and a second terminal . An electrical or electromagnetic first switch is connected in the first current path and an electrical or electromagnetic second switch is connected in the second current path. The on-board power system has a DC-to-DC voltage converter connected at output to a low-voltage system, wherein a first input of the DC-to-DC voltage converter is connected to a first tap in the first current path and the first switch, and a second input of the DC-to-DC voltage converter is connected to a second tap between the second switch and the second load terminal.