H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 41/36 (2006.01) H05B 41/285 (2006.01) H05B 41/392 (2006.01)
Patent
CA 2314338
A ballast adapted to power a fluorescent lamp as a function of a variable input signal, includes a power stage for providing power to a fluorescent lamp; a control circuit for controlling the power stage as a function of the variable input signal; a control circuit power supply for supplying control power to the control circuit; and a monitor and enabling circuit which permits the ballast to provide power to the lamp only when characteristics of the variable input signal meet predetermined criteria.
On utilise ici un ballast conçu pour alimenter électriquement une lampe fluorescente en fonction d'un signal d'entrée variable. Ce ballast comporte un étage de puissance fournissant l'énergie à une lampe fluorescente. Un circuit de commande permet de commander l'étage de puissance en fonction du signal d'entrée variable. Une alimentation électrique du circuit de commande alimente en tension de commande le circuit de commande. Un circuit de surveillance et de commande marche-arrêt ne permet au ballast d'alimenter la lampe que lorsque les caractéristiques du signal d'entrée variable satisfont à des critères définis.
Lutron Electronics Co. Inc.
Mccarthy Tetrault Llp
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