In the circuit shown below, the transistor Q is known to be operating in the active region.Determine the small-signal voltage gain vo/vs. Ignore resistor ro of the transistor and capacitors are large. A.vo/vin = [(R2 // R3) / (R1(R2//R3) ] / [ 1+k (1+Rth/r π)] , where Rth = R1 // R2 // R3 & k = ( 1 / r π + gm ) RE B.vo/vin = [(R2 // R3) / (R1+(R2//R3) ] / [ 1+k (1+Rth/r π)] where Rth = R1 // R2 // R3 & k = ( 1 / r π - gm ) RE C.vo/vin = [(R2 // R3) / (R1+ (R2//R3) ] / [ 1+k (Rth/r π+1 )] where Rth = R1 // R2 // R3 & n = ( 1 / r π + gm ) RE D.vo/vin = [(R2 // R3) / (R1+(R2//R3) ] / [ k (1+Rth/r π)] , where Rth = R1 // R2 // R3 & k = ( 1 / r π + gm ) RE UsR₁wwRinVccTwwR₂R3VccQR4RoutR5Vo

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Answered: In the circuit shown below, the…

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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In the circuit shown below, the transistor Q is known to be operating in the active region.

Determine the small-signal voltage gain vo/vs. Ignore resistor ro of the transistor and capacitors are large.

	A.	vo/vin = [(R2 // R3) / (R1(R2//R3) ] / [ 1+k (1+Rth/r π)] , where Rth = R1 // R2 // R3 & k = ( 1 / r π + gm ) RE
	B.	vo/vin = [(R2 // R3) / (R1+(R2//R3) ] / [ 1+k (1+Rth/r π)] where Rth = R1 // R2 // R3 & k = ( 1 / r π - gm ) RE
	C.	vo/vin = [(R2 // R3) / (R1+ (R2//R3) ] / [ 1+k (Rth/r π+1 )] where Rth = R1 // R2 // R3 & n = ( 1 / r π + gm ) RE
	D.	vo/vin = [(R2 // R3) / (R1+(R2//R3) ] / [ k (1+Rth/r π)] , where Rth = R1 // R2 // R3 & k = ( 1 / r π + gm ) RE

Us
R₁
ww
Rin
Vcc
T
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R₂
R3
Vcc
Q
R4
Rout
R5
Vo

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