The three LED circuit described will continuously monitor the general state of the battery from 'poor', red LED lights when the battery voltage is below 11.6 V, to yellow where the output voltage is low, to green where all is well. The circuit employs two bipolar transistors and two zener diodes.


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    Titel :

    Car battery condition indicator


    Weitere Titelangaben:

    Zustandsanzeigegeraet fuer Kfz-Batterien


    Erschienen in:

    Practical Electronics ; 18 , 3 ; 37-38


    Erscheinungsdatum :

    1982


    Format / Umfang :

    2 Seiten


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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