- #1
TheRedDevil18
- 408
- 1
If I have a bjt amplifier with pure differential input signals like this:
Now let's say I apply pure common mode signals to the same circuit, then why is the circuit above modified to this ?
Also when finding the Common Mode Input Resistance the circuit above excludes RE and includes ro, why ?
(finding input common mode resistance)
Now let's say I apply pure common mode signals to the same circuit, then why is the circuit above modified to this ?
Also when finding the Common Mode Input Resistance the circuit above excludes RE and includes ro, why ?