2. Important Points Concerning FET
1. Operates in either electron or holes
flow
2. Whereas BJT is current controlled
device, a FET is a voltage controlled
device
3.Virtually required no input current
4. FET generates low noise and more
temperature stable
7. Conclusion
JFET’s work differently to BJT’s in that we don’t
have any forward Junction. In order to increase
the current flow, we need to take some
restriction off the channel by decreasing the
reverse bias between the gate and the source.
If we want to decrease he current, then we
need to restrict the channel more by increasing
the reverse bias between the gate and the
source.
