How would you find the mathematical function of the voltage discharge curve for a capacitor considering the following circuit and conditions:
When time t=0, the capacitor is fully charged with the voltage V.
The current through resistor R is not negligible.
The constant current source is "powerful" enough to bring down the voltage of that node.
If the exact function cannot be determined, maybe at least some individual points could be found.
I tried to apply Kirchhoff's law:
and after integrating
At this point I don't know what to do since I cannot integrate an unknown function: Uc(t) (which is also the function I want to find).
Any ideas or different approaches? Thanks!