thanks.
I did the math on the differential op-amp, and found a resistor combo that should work great for me.
Here is the calculation
I am figuring the V1 input being the "un-altered" voltage (distro side of shunt) and V2 being the "dropped voltage".
I figured these resistor values would work:
R1-9,500 ohms
R2-10,000 ohms
Rf-3,800 ohms
Rg-10,000 ohms
With those calculations, if i did my calcuations correctly this table is correct.
The concern that i am having is the very slight voltage changes when the amperage changes.
For example:
When the voltage is 8V and the current draw is say 50% (50mV drop) the output voltage is 7.995V. When the voltage is 8v and the draw is 0% (0mV drop) the output is 8v. This is only a .005V drop between these two situations.
I am concerned about if the fusion brain will be able to read that little of a difference.
Are my calculations correct?
Will the fusion brain be able to read these small differences?