Current Sensing Resistor

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  1. - 17th February 2007, 07:00 #1
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    manumenzella
    manumenzella is offline Junior Member
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    Default Current Sensing Resistor

    Hi. I want to make a current sensing device, and I read somewhere (cant remember now) that you could you a small value resistor (about 0.1R) a measure the current drop across it. But how do I calculate the current from that value??? Should I use a simple op amp to amplify the voltage drop (like the 741)???
    Thanks!!! Manuel
    Last edited by manumenzella; - 17th February 2007 at 07:12.
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