- #1
Muhammad Usman
- 52
- 3
- TL;DR Summary
- 1) At pinch off voltage the depletion region blocks the channel so how does the current still flow or it remain constant.
2) What happens when we apply the gate voltage that completely stopped the drain current as depletion region for P-types already touched each other.
Hi,
I was studying JFET and it was written that at Pinch off voltage the drain current becomes constant. And when the gate to source voltage is applied. The more negative the voltage is the current will be decreased and eventually reached to 0. I don't understand below both points.
1) At pinch off voltage the depletion region blocks the channel so how does the current still flow or it remain constant.
2) What happens when we apply the gate voltage that completely stopped the drain current despite the fact the depletion region is already touched or blocked.
Please consider me as a basic learner while replying.
I was studying JFET and it was written that at Pinch off voltage the drain current becomes constant. And when the gate to source voltage is applied. The more negative the voltage is the current will be decreased and eventually reached to 0. I don't understand below both points.
1) At pinch off voltage the depletion region blocks the channel so how does the current still flow or it remain constant.
2) What happens when we apply the gate voltage that completely stopped the drain current despite the fact the depletion region is already touched or blocked.
Please consider me as a basic learner while replying.