TRAFFIC SIGNAL LIGHT BUILT AROUND LIGHT-EMITTING DIODE Russian patent published in 2004 - IPC

Abstract RU 2231826 C1

FIELD: electrical engineering; railway traffic signal lights.

SUBSTANCE: novelty is that active resistor of power circuit in light-emitting diode system is replaced by capacitor. Other pole of ac voltage supply is connected through signal relay contact to first lead of capacitor additionally introduced in circuit; second lead of capacitor is connected to second input lead of diode bridge. Light-emitting diode circuit is connected in parallel with diode bridge leads.

EFFECT: enhanced power characteristics of signal light, that is reduced power loss.

1 cl, 1 dwg

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RU 2 231 826 C1

Authors

Savel'Ev E.O.

Sergeev B.S.

Dates

2004-06-27Published

2002-10-09Filed