Patent ID: 8860243

Claim:
A power supply device ( 1 ) for an electrical energy consumer unit ( 2 ) that is to be supplied with electrical energy and being arranged on a commercial vehicle trailer, the power supply device ( 1 ) comprising: an electro-hybrid drive system ( 3 ) of a commercial vehicle, comprising a high-voltage battery ( 5 ) and a high-voltage system ( 4 ) having an inverter ( 6 ); the inverter ( 6 ) of the high-voltage system being electrically connected to the high-voltage battery ( 5 ) and an electric motor ( 7 ) of the commercial vehicle, such that the inverter ( 6 ) of the high-voltage system delivers energy from the high-voltage battery ( 5 ) to the electric motor ( 7 ); the electro-hybrid drive system ( 3 ) being directly connected to a supply unit ( 8 ) by a plug-in connection ( 14 ) for converting a direct voltage, from the high-voltage system ( 4 ) of the electro-hybrid drive system ( 3 ), into a three-phase alternating voltage; the supply unit ( 8 ) comprising a supply unit inverter ( 10 ), a transformer ( 12 ) and an output ( 11 ), the transformer ( 12 ) being connected downstream from the supply unit inverter ( 10 ) and the output ( 11 ) being connected downstream from the transformer ( 12 ) for transmitting the three-phase alternating voltage and supplying power to the consumer unit ( 2 ); the transformer ( 12 ) is a step up transformer; and the output ( 11 ) is a standardized interface ( 13 ) together with the consumer unit ( 2 ).