Electronic Devices - Field-Effect Transistors - Discussion
Discussion Forum : Field-Effect Transistors - General Questions (Q.No. 13)
13.
The value of VGS that makes ID approximately zero is the
Discussion:
2 comments Page 1 of 1.
Ganapathy said:
1 decade ago
I think it is pinch off voltage because the region may be cut off region but at Vgs = pinch off voltage even if Vds is zero the depletion region is maximum and drain current is zero. Also the voltage at which Id is zero is cut off voltage.
Saidulu said:
1 decade ago
id=idss(1-vgs/vt)^2
when vgs=vt id=0
vgs=vt occurs in cutoff region only
when vgs=vt id=0
vgs=vt occurs in cutoff region only
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