The circuit described uses the MM5451N shift register and LED driver to provide a bargraph display of engine revs. The circuit operates as follows: When the output of an IC is high, pulses are received from the points via two other ICs and are used to clock the shift register - the data input is held high. When the output of the first IC is low the data input is low and further ICs provide clock pulses to fill the shift register with zeros. A number of LEDs are switched on corresponding to the number of ignition pulses received. The display updates every 0.3 seconds.


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    Titel :

    35 led tacho


    Weitere Titelangaben:

    Led-tacho


    Beteiligte:
    Benton, I. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1984


    Format / Umfang :

    1 Seite


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch