Current sensor output modification. PIC or opamp or something else?

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  1. - 1st December 2020, 19:37 #2
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    Default Re: Current sensor output modification. PIC or opamp or something else?

    Hi, peter

    why not use a TL431 or similar " zener effect diode " that will draw some current past 2.5v https://www.ti.com/lit/ds/symlink/tl...lsrc%253Daw.ds

    the idea is a resistor paralled by the "zener" and a second resistor in series ... as the lower part of a voltage divider.

    Now that's the raw answer to the question ...

    IF your signal doesn't exceed the input range of the converter, it will be much much much simpler to apply a simple " IF conversion_result is > 2.5 THEN result = (result-2.5)/2 + 2.5 ...

    the "2" divider being just an example ( might be /3*2 ... for / 1.5 )

    Alain
    Last edited by Acetronics2; - 1st December 2020 at 19:47.
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