A power converter module includes: a DC input terminal configured to receive an input voltage from a DC source; an intermediate circuit coupled directly to the DC input terminal; a DC output terminal configured to provide an output direct voltage; an AC output terminal configured to provide an output alternating voltage; a DC converter coupled between the intermediate circuit and the DC output terminal in order to receive an input voltage from the intermediate circuit; an inverter coupled between the intermediate circuit and the AC output terminal in order to draw an input voltage from the intermediate circuit; and a regulating device coupled to the DC converter and to the inverter, the regulating device being configured to regulate the input voltage of the inverter and of the DC converter to a maximum power drain from the DC source.