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jfet pinch voltage question

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nabliat6

New Member
**broken link removed**
i thought that as we increase the voltage the gap becomes smaller
and in pinch voltage we have an open circuit

but the grath says otherwise
that as we increase the voltage the current increases and in the pinch voltage (when there is no way for the electrons to move and we have a total deplition region on one side)
we have a saturation
and there is no decrease in current no where
why?

in here
**broken link removed**
when i increase the Vdc the current stop
no matter what in the Vgs
 
That animation is in error. I have emailed them with that information.

Once the pinch-off point is reached at a constant gate-source voltage, the drain current will stay constant or increase just slightly with an increase in the drain-source voltage.
 
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