Electronics - Field Effect Transistors (FET) - Discussion
Discussion Forum : Field Effect Transistors (FET) - General Questions (Q.No. 2)
2.
When an input delta of 2 V produces a transconductance of 1.5 mS, what is the drain current delta?
Discussion:
10 comments Page 1 of 1.
Shadan said:
8 years ago
Transconductance(gm)= Del( ID) /Del( VGS)
and also Transconductance is reciprocal of resistance so we no that Resistance =V/I.
so transcondustance=I/V.
Then you will found 3mA.
and also Transconductance is reciprocal of resistance so we no that Resistance =V/I.
so transcondustance=I/V.
Then you will found 3mA.
Hegde said:
1 decade ago
dI/dV = gm(transconductance).
>dI = gm*dv.
>dI = 1.5m*2;.
>dI = 3mA.
>dI = gm*dv.
>dI = 1.5m*2;.
>dI = 3mA.
(1)
Shalini said:
1 decade ago
delta Id/delta Vi = Gm
Gm=tranconductance=1.5 milli Siemens
Id=Gm*Vi
Gm=tranconductance=1.5 milli Siemens
Id=Gm*Vi
Sumit Patel said:
1 decade ago
Thanks shalini to remember
Gm=1/R=1/Resistance=Transconductance
Gm=1/R=1/Resistance=Transconductance
(1)
Shreevidya said:
1 decade ago
Id = 2 sqrt(gm*Vgs).
gm = 1.5x10^-3.
Vgs = 2.
So Id = 3mA.
gm = 1.5x10^-3.
Vgs = 2.
So Id = 3mA.
Neeraj Kumar said:
1 decade ago
Thanks to Shalini. I just wanted to see the formula used.
Bill said:
8 years ago
What is the input delta, what is the drain current delta?
Ambarish said:
4 years ago
Thanks for the proper explanation @Shadan.
(1)
Saranya said:
1 decade ago
Thanks to shalini.
(1)
Ganesh said:
1 decade ago
Gm=Iout/Vin
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