Incandescent lamp monitoring system for automobiles - has controlled relay that causes activation of diode if lamp fails

Incandescent lamp monitoring system for automobiles - has controlled relay that causes activation of diode if lamp fails

A low cost system allows any operating malfunction in the filament bulbs of a road vehicle to be indicated by an LED. The main ignition switch (10) is coupled to a relay with current and voltage coils (21, 22) that are connected in series with the filament bulb (12) being monitored. The relay contac...

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1. Verfasser: BETSCH,HELMUT
Format: Patent
Sprache:eng ; ger
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ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
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creator BETSCH,HELMUT
description A low cost system allows any operating malfunction in the filament bulbs of a road vehicle to be indicated by an LED. The main ignition switch (10) is coupled to a relay with current and voltage coils (21, 22) that are connected in series with the filament bulb (12) being monitored. The relay contacts (23) are coupled across series path including the indicator diode (15). If the bulb fails the relay remains closed and the indicator is energised.
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language eng ; ger
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subjects ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
title Incandescent lamp monitoring system for automobiles - has controlled relay that causes activation of diode if lamp fails
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