Valeo Siemens Eautomotive France Sas

Other

Valeo Systemes De Controle Moteur

Larbi Bendani

Francis Delaporte

Gang Yang

Mimoun Askeur

Reda Chelghoum

Bruno Condamin

Benedicte Silvestre

Hicham Sadki

Massourang Diallo

Patrick Dubus

Bénédicte Silvestre

Luis De Sousa

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

The invention relates to a method for measuring the temperature of at least one electronic component () using a sensor () that supplies a temperature-dependent voltage. The method comprises the following steps in which: a signal representative of the voltage delivered by the sensor () is made to pass through an isolated differential amplifier (), and the signal output from said isolated differential amplifier () is used to determine the temperature measured by the sensor ().

Temperature measurement method

The invention relates to a voltage converter comprising: an isolated DC/DC converter circuit having at least one first isolation transformer and switches whose opening and closing successions with at least one duty ratio make it possible to transmit energy through the isolated DC/DC converter by way of said first transformer; a circuit for regulating the input voltage of the isolated DC/DC converter circuit; the regulating circuit being configured to control the output voltage of the isolated DC/DC converter circuit by modifying the voltage delivered to the isolated DC/DC converter circuit, the duty ratio of the isolated DC/DC converter circuit remaining constant, and in said converter, the output of the regulating circuit is connected to a branch of the isolated DC/DC converter circuit comprising said first transformer.

Voltage converter comprising an isolated DC/DC converter circuit

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Meru, France

Larbi Bendani