Electronics - Field Effect Transistors (FET) - Discussion
Discussion Forum : Field Effect Transistors (FET) - Filling the Blanks (Q.No. 1)
1.
To get a negative gate-source voltage in a self-biased JFET circuit, you must use a ________.
Discussion:
2 comments Page 1 of 1.
Cacao said:
4 years ago
You can also have a negative VGS if you apply a negative gate supply voltage VGG. By performing KVL in the Gate-Source Loop -VGG-Vgs=0, Vgs = -VGG.
The same goes for a source resistor by performing KVL in the Gate-Source Loop -Vgs-IdRs = 0 Vgs = -IdRs.
The same goes for a source resistor by performing KVL in the Gate-Source Loop -Vgs-IdRs = 0 Vgs = -IdRs.
AMZ said:
1 decade ago
Since its self biased ! so we can't play with gate voltage,
Vgs= Vg-Vs, Vg is constant "self biased" so we only can change the source voltage by changing the source resistor.
Vgs= Vg-Vs, Vg is constant "self biased" so we only can change the source voltage by changing the source resistor.
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