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Please determine the AC voltage gain.

Please determine the AC voltage gain.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Vi RG C1 = 2 M Please determine the AC voltage gain. Vdd = +20 V RD = 3 K 4+ C2 Idss = 6 mA Vp = -6 V Vo
Transcribed Image Text:Vi RG C1 = 2 M Please determine the AC voltage gain. Vdd = +20 V RD = 3 K 4+ C2 Idss = 6 mA Vp = -6 V Vo
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Therefore transconductance gm Vi We have vo RG gm 2×6×10-³ = 2 × 10-³4 AC analysis: The small signal equivalent circuit can be drawn as: = + Vgs = = -gmRD -gmVgsRD --- (1) and Vgs = V₁ — — — (2) From equation (1) and (2) we get Vo = -gmViRD Vo Vi Therefore AC voltage gain Av 21ass Vp Vi [1 = VGS gmVgs ww RD Vo -gmRD=-2 x 10-³ × 3 × 10³ = -6
Transcribed Image Text:Therefore transconductance gm Vi We have vo RG gm 2×6×10-³ = 2 × 10-³4 AC analysis: The small signal equivalent circuit can be drawn as: = + Vgs = = -gmRD -gmVgsRD --- (1) and Vgs = V₁ — — — (2) From equation (1) and (2) we get Vo = -gmViRD Vo Vi Therefore AC voltage gain Av 21ass Vp Vi [1 = VGS gmVgs ww RD Vo -gmRD=-2 x 10-³ × 3 × 10³ = -6
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