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Hi,Perhaps you better define what max. current and resolution you need, then a solution can be found.
What do you think about this current sensor IC I found on digikey?It looks simple enough for even me to understand it.
Yep. I need it to be on a scale of 0-2A (1.25A is what I'm shooting for) with a pretty fine resolution so I can monitor my battery charging.
I guess that makes a little sense...I think that Uo is the output voltage for sensing (educated guess here), so I guess I_Load would be the maximum current load you'd want to sense right?I'm also assuming that because no faults were made with my numerical statements, they are true.
Is that a pretty good equivalent?
@soeren: I'm guessing that in the schematic:1. U_IN = VCC2. +U_OUT = Signal3. -U_OUT isn't really needed for microcontroller useAnd furthermore:A. The resistors say "10R", "100R", etc next to them. What does that mean?B. What is Uo and I_Load in the formula in the bottom?
The mosfet you have in your schematic is marked as obsolete by digikey.
Sorry, I don't really understand...Do I physically modify it, or do I just wire it up different than I normally would?