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Safran Electrical & Power

Philippe Preciat

Sonia Dhokkar

Cédric Balpe

Valery Chau

Antonio Li Ku

Pascal Rollins

Youssouf Camara

An electrical distribution device includes at least one power controller that is connectable to at least one electrical body, at least one local controller used to interface at least one power controller with at least one external calculator, and at least one local power supply path for powering at least one power controller and each local controller. Each power controller and each local controller includes a local DC/DC-type converter for coupling to each local power supply path. The device also includes an energy reservoir coupled to each local power supply path and to the local converters of the power controllers and the local controller.

Electrical distribution device comprising at least one power controller

The invention relates to an electric DC-DC converter suitable for being supplied with power by a primary voltage source and for supplying control electronics of a three-phase inverter with power, said three-phase inverter being configured to control a fan of a ventilation system of an aircraft. The DC-DC converter is characterised in that it comprises a transformer (), a primary circuit () comprising two loops forming a symmetrical assembly, at least one secondary circuit () comprising a secondary winding (L), suitable for supplying, firstly, the inverter with an output voltage equal to twice the peak voltage at the terminals of the secondary winding (L) and, secondly, a branch of the circuit suitable for supplying the inverter with an output voltage equal to the opposite of the peak voltage at the terminals of the secondary winding (L), and in that the controllable transistors (M, M) are suitable for each being switched at zero voltage.

Dc-DC converter for controlling an aircraft fan inverter, and associated control method and fan

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Blagnac, France

Philippe Preciat