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  1. filipespc

    variable resistance with current

    My problem is that my system can take from 0.3A to about 2.0A. This means that I have a 2V drop for each ohm in series with my local supply. As my source is automotive battery (from 12 to about 32V) I weren't able to find a resistor to attend my especification. That is, a resistor with less than...
  2. filipespc

    variable resistance with current

    Hi, I need to find a component that increases its resistance with current. My idea is to use it in association with a MOV or a Transil (or even a zener) to clamp a voltage in the in of my source. I read something about lamps in the "voltage clamp" forum. Wich lamp? Where can I find about it? I...

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