Opto-electrical actuation system and method

Details Opto-electrical actuation system and method Opto-electrical actuation system and method

H - Electricity

03

K

H03K 17/78 (2006.01) G08C 23/06 (2006.01) H03K 17/00 (2006.01) H04B 10/00 (2006.01)

Patent

CA 2376854

A selective optical actuation system for a plurality of electrical devices (20) comprises a variable pulse frequency pulsed light source (10) and an optical fibre network (12, 13, 14) distributing the light pulses to an actuation gateway for each device, comprising a photovoltaic converter (16) whose correspondingly pulsed electrical output is applied to a ferroelectric transformer (18). Only if the pulse frequency is within the resonant band for a given transformer will the voltage be raised above a threshold value rquired to actuate that device. Choice of light pulse frequency thereby determines the device(s) to be actuated.

L'invention porte sur un système de commande optique sélectif d'un ensemble d'appareils (20) électriques comportant une source (10) de lumière pulsée de fréquence variable, et un réseau (12, 13, 14) de fibres optiques dirigeant les impulsions lumineuses sur les portes de commande de chacun des appareils. Ces derniers comportent chacun un convertisseur photovoltaïque (16) dont le signal de sortie pulsé de même fréquence est appliqué à un transformateur ferroélectrique (18) dont la tension ne dépassera le seuil nécessaire pour actionner un appareil que si la fréquence des impulsions se trouve dans sa plage de résonance. Le choix de la fréquence des impulsions lumineuses permet donc de déterminer le ou les appareils à actionner.

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