Valeo Siemens Eautomotive France Sas

Reda Chelghoum

Larbi Bendani

Bruno Condamin

Mimoun Askeur

Benedicte Silvestre

Massourang Diallo

Luis De Sousa

Bénédicte Silvestre

The invention relates to a DC/DC voltage converter comprising an isolated circuit including inductors coupled to one another by a first magnetic circuit that is independent of a second magnetic circuit coupling inductors to one another, and wherein: &#x2014;a first side of the electrically isolating barrier includes an electrical branch comprising an inductor that is coupled to the first magnetic circuit and is electrically connected in series with an inductor that is coupled to the second magnetic circuit; and &#x2014;a second side of the electrically isolating barrier includes a first inductor that is coupled to the first magnetic circuit and a second inductor that is coupled to the second magnetic circuit; the second side of the electrically isolating barrier further comprising a third inductor and a fourth inductor, said third and fourth inductors of the second side being coupled by a respective magnetic circuit to at least one respective inductor that is located on the first side of the isolating barrier.

DC/DC voltage converter device

The present invention pertains to an electrical system, in particular designed to be installed on board an electric or hybrid vehicle, whereby said electrical system includes an AC-to-DC converter that includes a rectifier and a DC-to-DC converter, an isolated DC-to-DC converter connected to a high voltage battery, and whereby said electrical system is configured, in a first operating mode, to be connected to an external alternating electricity grid to charge the high voltage battery. Furthermore, the first interface terminals of the DC-to-DC converter are connected to a low voltage battery, whereby said electrical system is configured so that, in a second operating mode, when the electrical system is disconnected from the external alternating electricity grid, said DC-to-DC converter supplies an initial voltage from the high voltage battery to power the low voltage battery.

Electrical system for charging a high-voltage battery and a low-voltage battery

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Carrieres-sur-Seine, France

Reda Chelghoum