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How Juction Feild Effect Transistor works?


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This resource contains information related to the JFET. JFET is one of the electronics component. JFET means the Juction Field Effect Transister. Here you can get more information related to the JFET.



JFET: Juction Feild Effect Transistor


JFET
The Field-effect transistor (FET) is a three terminal device used for a many applications , to a large amount, those of the BJT. Field effect transistors offers many good-looking feature for applications in among switching, high input impedance amplifiers, microwave amplifications and integrated circuits.

The junction field-effect transistors (JFET's) can be separated their structure into the following two categories:-

1. N-channel JFET
2. P-channel JFET

Construction



JFET Consrtuction

JFET consist of an N-type semiconductor bar with two p-type greatly doped regions diffused on opposite sides of its center part. There are two PN junctions are twisted by p-type regions. The spaces between the two jctuions are called a channel. The p-regions of JEFT are attached internally. A single wire drawn out in the form of a terminal called the gate
In 1925, Julius Lilienfeld predicted this JFET.


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