A light failure monitoring system using existing alarm panels includes a first circuit capable of turning on a solid state switch or transistor, which turns on a lamp or LEDs. The system also includes a second circuit having a light sensitive device, such as a photoresistor, that keeps the solid state switch or transistor turned on upon sensing light from the lamp or LEDs, and when the light sensed by the photoresistor substantially drops in intensity the solid state switch or transistor turns off, which causes an alarm to sound on the alarm panel. Alternatively, the first circuit may include a second solid state switch to amplify the signal and make it easier to start the second circuit.


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    Titel :

    LAMP OR LED FAILURE MONITORING SYSTEM


    Weitere Titelangaben:

    LAMPEN- ODER LED-AUSFALLÜBERWACHUNGSSYSTEM
    DISPOSITIF DE RECHERCHE DES DÉFAILLANCES D'AMPOULES OU DE DIODES ÉLECTROLUMINESCENTES


    Beteiligte:

    Erscheinungsdatum :

    04.09.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / H05B ELECTRIC HEATING , Elektrische Heizung




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