Ballast for gas discharge tubing

Details Ballast for gas discharge tubing Ballast for gas discharge tubing

G - Physics

09

G

G09G 3/00 (2006.01)

Patent

CA 2200021

A system for controlling signage comprised of plural gas discharge lamps, comprising a ballast associated with each gas discharge tube, each ballast comprising a variable voltage converter unit coupled to a gas discharge tube and a communication module, apparatus for transmitting control signals between the ballasts via the communication modules for controlling the converters and thus controlling operation of the gas discharge lamps to provide special display effects.

L'invention porte sur un système de commande de la signalisation composé de plusieurs lampes à décharge comportant un ballast associé à chaque tube à décharge à basse pression. De plus, chaque ballast comprend un groupe convertisseur à tension variable couplé à un tube à décharge et à un module de communication. Le système inclut également un appareil qui transmet, par le biais des modules de communication, des signaux de commande entre les ballasts pour contrôler les convertisseurs et ainsi commander le fonctionnement des lampes à décharge afin d'obtenir des effets spéciaux d'affichage.

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