Electronics - Field Effect Transistors (FET) - Discussion
Discussion Forum : Field Effect Transistors (FET) - General Questions (Q.No. 1)
1.
Junction Field Effect Transistors (JFET) contain how many diodes?
Discussion:
26 comments Page 2 of 3.
Md Abu Sayeed said:
1 decade ago
As FET made up of one layer of N and two layer of P which are internally shorted so it form a single diode.
Dishant said:
1 decade ago
Answer should be 1 diode because and layer is of source and drain and p layer is of gate. Since, source and drain are interchangeable, hence answer is 1 diode. This is tricky question.
S.Dhana lakshmi said:
1 decade ago
I don't understand answer I think that it has two diodes. That is when here n channel same as base terminal how to say single diode. Please send answer.
Wheats said:
1 decade ago
BJT's are bi-polar devices and FET's are uni-polar devices.
KRISHNA KUMAR said:
1 decade ago
Since FET consist one layer of N and two layer of P which are internally connected to each other so it form a single diode.
(1)
Ysksingh said:
1 decade ago
Yeah, Answer is 2 diode because transistor made by 2 diode.
Vivek said:
1 decade ago
Its a two diode structure, two well of same material with one substrate in between them.
Pushpendra kumar chaurasiya said:
1 decade ago
Answer of pavan kumar and was right.
If you know the characteristics of JFET at pinch off condition, then potential barrier takes place at only between drain and source, not in between gate and source because both are at same potential.
If you know the characteristics of JFET at pinch off condition, then potential barrier takes place at only between drain and source, not in between gate and source because both are at same potential.
Abhinav said:
1 decade ago
FET surely contains one layer of n and two layers of p but during its operation the second layer of p or the substrate is shorted. Therefore it is not counted a/c to me. During the working of fet only one layer of p and n act as a single diode.
Nagendra pal said:
1 decade ago
Since FET consist one layer of N and two layer of P which are internally connected to each other so it form a single diode.
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