Constant current class 3 lighting system

G - Physics – 05 – F

Patent

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G05F 1/00 (2006.01)

Patent

CA 2559194

A lighting system having a power supply and at least one luminaire. The power supply includes a power supply input to receive a first signal having a first frequency and a circuit for converting the first signal to a second signal. The power supply also includes at least one power supply output to output a second signal having a substantially constant current and a second frequency distinctly higher than the first frequency. The luminaire includes a lamp coupled to a lamp driver circuit, which has an input for receiving the output signal from the power supply and which is configured to use the received output signal to operate the lamp. The lamp driver input and the power supply output may be connected by a flexible cable.

L'invention concerne un système d'éclairage comprenant au moins un bloc d'alimentation en courant et au moins un luminaire. Le bloc d'alimentation en courant comporte une entrée d'alimentation en courant permettant de recevoir un premier signal d'une première fréquence et un circuit permettant de convertir ce premier signal en un deuxième signal. Le bloc d'alimentation en courant comprend également au moins une sortie d'alimentation en courant permettant de délivrer un deuxième signal d'un courant sensiblement constant et d'une deuxième fréquence nettement supérieure à la première fréquence. Le luminaire comprend une lampe couplée à un circuit de commande de lampe qui a une entrée de réception du signal de sortie du bloc d'alimentation et qui est destiné à utiliser le signal de sortie reçu pour faire fonctionner la lampe. L'entrée du circuit de commande de la lampe et la sortie du bloc d'alimentation peuvent être connectés par un câble flexible.

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