(b) For an n-channel, JFET amplifier circuit given in Figure (b), the VGS(OFF) = -6 V, the IDss= 6 mA, and the VGS = 0 V. The drain supply voltage, VDD; = 30 V, is larger than thepinch-off voltage, VP (VGS(OFF)] = [VP), so that the transistor operates in the saturationregion. Determine the following:i)the drain current, ID;ii)the drain-source voltage, VDs;iii)the drain voltage VD; andiv) the source voltage, Vs.VDD-30VVGS-OVRD =3KID+VDSRs=1kFigure Q(b)

Given:A n-channel JFET amplifier circuit is given.The given JFET circuit works in the saturation…

Answered: i) ii) iii) iv) the drain current, ID;…

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i) ii) iii) iv) the drain current, ID; the drain-source voltage, VDs; the drain voltage VD; and the source voltage, Vs.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

(b) For an n-channel, JFET amplifier circuit given in Figure (b), the VGS(OFF) = -6 V, the IDss
= 6 mA, and the VGS = 0 V. The drain supply voltage, VDD; = 30 V, is larger than the
pinch-off voltage, VP (VGS(OFF)] = [VP), so that the transistor operates in the saturation
region. Determine the following:
i)
the drain current, ID;
ii)
the drain-source voltage, VDs;
iii)
the drain voltage VD; and
iv) the source voltage, Vs.
VDD-30V
VGS-OV
RD =3K
ID
+
VDS
Rs=1k
Figure Q(b)

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Step 2: i) Calculation of drain current of JFET.

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Step 3: ii) Calculation of the drain-source voltage.

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Step 4: iii) Calculation of the drain voltage.

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Step 5: iv) Calculation of the source voltage.

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