Question on setting up a fitting function
Fri, 11/20/2009 - 12:50 pm
The independent experimental variable is current, I
The dependent measured variable is voltage, V
The form of the solution is
I = J1(exp(k(V-RsI))-1) + J2(exp(k/2(V-RsI))-1) + (V-RsI)/Rsh
we need to solve for J1, J2, Rs, and Rsh. k is a known value. Note that I appears in both sides of the equation. How would I set up the fitting function? A twist is that while experimentally the current, I, is set and Voltage, V, is measured in graphing V is on the X axis. I have started the discussion that fitting X by Y versus Y by X yield different answers.