Airbus Operations (s.a.s.)

Airbus Operations Gmbh

Arnaud Davy

David Rousset

Olivier Rieux-Lopez

Thibault Pinchon

Laurent Peyras

The disclosure concerns a switched-mode power supply comprising a module for charging and discharging an energy store including an electrical transformer. The device provides high configuration flexibility.

Switched-mode power supply comprising a module for charging and discharging an energy store including an electrical transformer

A switched-mode power supply device including a charger connected on one side to a direct current electrical network, or rectified alternating current electrical network, a power reserve connected to a second side of the charger, and DC-DC output converters delivering regulated output voltages. The output converters are connected by an input to the first side of the charger. The charger is a current bidirectional, voltage unidirectional converter which, in a first phase, enables the power reserve to be recharged and maintained charged from the network, where the output converters are powered by the network and, in a second phase, in the presence of a power brown-out of the network, enables the power reserve to be discharged to power the output converters. A reverse blocking module is connected to the first side of the charger to disconnect the charger and the output converters from the network during the second phase.

Switched-mode power supply device and aircraft including at least one such device

To produce an insulated current sensor for slaving power devices in the field of avionics, use is made of a magnetic core through which there passes an element traversed by a current to be measured. The magnetic core comprises a secondary winding across the terminals of which are connected an oscillator and a measurement device. The cooperation of the oscillator and of the measurement device makes it possible to circumvent all the traditional drifting of current sensors.

Current sensor

A method of managing an electrical power supply outage on board an aircraft, including the following operations: &#x2014;detection of an electrical power supply outage, &#x2014;measurement of a duration of the power supply outage by measuring a discharge time of a capacitor and comparing this measured duration with a threshold duration, &#x2014;saving a long outage indication when the duration of the outage is greater than a threshold duration. The disclosed embodiments also relates to a system implementing this method and including: &#x2014;a circuit for detecting an electrical power supply outage, &#x2014;a circuit for measuring a duration of the power supply outage, and&#x2014;a circuit for managing indications able to manage emissions of signals according to the measured duration of the power supply outage.

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Pechbonnieu, France

Arnaud Davy