SUPPLY DEVICE, FUEL CELL VEHICLE, AND METHOD FOR LIMITING VOLTAGE IN A SUPPLY DEVICE

The invention relates to a supply device (1) for supplying electricity to at least one consumer (2, 3), said supply device comprising: a primary power supply (4) in which there is a first fuel cell device (7) having a first performance; a voltage transformer (13) which connects the primary power supply (4) to a secondary power supply (17) having a battery (20); and a measuring device (12) for detecting an insulation resistance of the primary power suply (4) and/or of the secondary power supply (17). A second fuel cell device (8) having a second performance is connected in series with the first fuel cell device (7) in the primary power supply (4), wherein a bridge circuit (10) comprising a switch (11) is connected in parallel with each of the fuel cell devices (7, 8), and wherein the switches (11) of the bridge circuits (10) can be switched in accordance with the detected insulation resistance. The invention also relates to a fuel cell vehicle and to a method for limiting voltage in a supply device (1). 本发明涉及一