approx
Newbie level 4
Hello, I've got this curcuit. (see attachment)
It is is an temperature-application with a Voltage-follower Op-Amp and a Inverting Op-Amp with an offset voltage connected to the NON-inverting(+) output.
I have following equalation for the voltage output:
V_output = (Rf/Ri+1)*V_offset - (rf/Ri)*V_voltageDiode
I think I understand why (Rf/Ri+1)*V_offset is there, but what does (rf/Ri)*V_voltageDiode represent, and why is it included .
Thank you : - )
It is is an temperature-application with a Voltage-follower Op-Amp and a Inverting Op-Amp with an offset voltage connected to the NON-inverting(+) output.
I have following equalation for the voltage output:
V_output = (Rf/Ri+1)*V_offset - (rf/Ri)*V_voltageDiode
I think I understand why (Rf/Ri+1)*V_offset is there, but what does (rf/Ri)*V_voltageDiode represent, and why is it included .
Thank you : - )