Module for powering and monitoring light-emitting diodes

H - Electricity – 05 – B

Patent

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H05B 33/08 (2006.01)

Patent

CA 2514097

LED lamp circuitry that emulates an incandescent lamp's behaviour upon remote verification of the LED lamp. The LED lamp circuitry presents an input power switch circuit, a fuse blow-out circuit, a cold filament test circuit, a current detector circuit and a boost power stage circuit, permitting the use of LED lamps in applications, such as railway signal light applications, where there is a need for remote monitoring of the lamps, while keeping the advantageous features of lower power consumption and longer life.

L'invention concerne un circuit de lampe à diode électroluminescente émulant le comportement d'une lampe à incandescence lors de la vérification à distance de la lampe à diode électroluminescente. Les circuits de la lampe à diode électroluminescente comprennent un circuit de commutation de puissance d'entrée, un circuit de claquage de fusible, un circuit de contrôle de filament froid, un circuit de détection de courant et un circuit d'étage de puissance d'amplification, permettant d'utiliser des lampes à diodes électroluminescentes dans des applications telles que les feux de signalisation des chemins de fer, nécessitant un contrôle à distance des lampes, tout en conservant des caractéristiques avantageuses telles qu'une faible consommation de courant et une plus longue durée de vie.

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