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Recent content by gallo

  1. gallo

    A simple circuit for a 20 to 320 Ohms output

    Thank you everybody for your help, I think I found my solution with a variable voltage applied to the gate of a transistor.
  2. gallo

    A simple circuit for a 20 to 320 Ohms output

    The "resistor" have to pass only few miliAmps and would be a "floatting resistor (serial). It has to replace an old resistive sensor. The required precision is about 2% that means 6 Ohms or 50 steps. Thank you for your idea Buzzp but in my case muxing resistances would take to...
  3. gallo

    A simple circuit for a 20 to 320 Ohms output

    I'm looking for a simple circuit to convert a linear voltage or an MCU digital output to a 20-320 ohms output. Can any one tell me how to build such a converter ( I don't want to use digital potentiometer)? Thank you.
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