If given Vs, Rsense, Vc, input current, how can I determine the input voltage? I am not sure if this requires hybrid parameters or something else. Any help would be appreciated. I am taking an an online course and I cannot find a similar problem in the text.

 

If given Vs, Rsense, Vc, input current, how can I determine the input voltage? I am not sure if this requires hybrid parameters or something else. Any help would be appreciated. I am taking an an online course and I cannot find a similar problem in the text.

Can you post an example of the circuit that you need to solve?

hgmjr

 

Thanks for replying. All I have is numericals values for those variables I included in the original post. I really don't know enough to know if something is missing.

 

Would this work?

Assume input current 20 uA, Rs = 100, Vs 18 mV

20 uA = 18 mV - Vin/100

18 mV - 20 uA x 100 = Vin

18 mV - 2 mV = 16 mV