Figure P15.65 R1 R1 R2 { +, (1-B)R4 BR4 R3 R4 R3 Figure P15.65 Full Alternative Text

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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PRACTICALPERSPECTIVE_ An engineering project manager
has received a proposal from a subordinate who claims the circuit shown
 could be used as a treble volume control circuit if
R4≫R1+R3+2R2. The subordinate further claims that the voltage
transfer function for the circuit is
H(s)=VoVs =−{(2R3+R4)+[(1−β)R4+Ro](βR4+R3)C2s}{(2R3+R4)+[(1−β)R4+R3]
(βR4+Ro)C2s}  where Ro=R1+R3+2R2. Fortunately the project engineer has an electrical engineering undergraduate student as an intern and therefore
asks the student to check the subordinate’s claim.
The student is asked to check the behavior of the transfer function as
ω→0; as ω→∞; and the behavior when ω=∞ and β varies between 0 and
1. Based on your testing of the transfer function do you think the circuit
could be used as a treble volume control? Explain.                                                                                                       

Figure P15.65
R1
R1
R2 {
+,
(1-B)R4 BR4
R3
R4
R3
Figure P15.65 Full Alternative Text
Transcribed Image Text:Figure P15.65 R1 R1 R2 { +, (1-B)R4 BR4 R3 R4 R3 Figure P15.65 Full Alternative Text
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