battery charger installed in a motor vehicle provided with at least one electric motor

battery charger installed in a motor vehicle provided with at least one electric motor, the charger comprising an input filter (2), a rectifier (3), the inductances of the electrical machine (4), an inverter (5) , the charger being connected to a power supply network (1) via the input filter (2) and a battery (6) via the inverter (5). The charger comprises a switching device (7) arranged between the power supply network (1) and the input filter (2), upstream of the rectifier (3), the breaking device (7) comprising a member cutting (8), a current detecting element (9), and a control member (10), the control member (10) being adapted to control the isolating member (8) according to the least one current measurement of the current detection member (9) and at least one current threshold.