Environmental Engineering Reference
In-Depth Information
2)
To evaluate the return ratio, we set to zero and replace the original
controlled current generator, with an independent current source,
i
.
Again, transistor T2 can be eliminated while transistor T1 is in common Y
configuration as illustrated in Fig. 6.4.
The circuit can be simplified by considering the Norton equivalent of
generator
i
and resistors
and
shown in Fig. 6.5
