The discussion centers on analyzing a Source Follower Large Signal MOSFET amplifier circuit. Key equations presented include v_o = v_IN - v_T, id = k/2*(v_IN - v_T)^2, and iDS = v_o/RS. Participants identified errors in equations 3 and 4, noting that v_o and v_S represent the same voltage. The confusion stems from a lack of clarity on the output voltage (v_o) in the given circuit.
PREREQUISITESThis discussion is beneficial for electrical engineering students, circuit designers, and anyone involved in the design and analysis of MOSFET amplifiers.
krtica said:
I'm still not very confident in analyzing circuits. Here's what I know:
1) v_o=v_IN - v_T
2) id=k/2*(v_IN-v_T)^2
3) v_o=v_S-(k/2)(v_IN-v_T)^2*RS
4) v_o = v_S-id*Rs
iDS = v_o/RS
The answer I chose in the photo was based off of other online discussions. I'm very confused and don't have the slightest idea as to where to go. Any ideas appreciated.
krtica said:
I'm still not very confident in analyzing circuits. Here's what I know:
1) v_o=v_IN - v_T
2) id=k/2*(v_IN-v_T)^2
3) v_o=v_S-(k/2)(v_IN-v_T)^2*RS
4) v_o = v_S-id*Rs
iDS = v_o/RS
The answer I chose in the photo was based off of other online discussions. I'm very confused and don't have the slightest idea as to where to go. Any ideas appreciated.