For node of V, V V. (1e jex R For node V2 + jaC(V, -V,)+ j@C(V, –V.)=0 26 + jet jaCV, + jeCV, (17 For node of V. V. -v.)+ joc(V, -V,)-0 (18 Simplifying the above equations and using the substitution X = cRC (19 We get V, = (20 41+ jx }(V, +V_) jX V, (21 2(1+ jX )(V, +V.) (22 V.-E xV + jXv,) Substituting equations (20) & (21) into Eq (22) and solving for VV| we get the transfer function V X-1 (23 V X-4 jX -1 It is clear that the value of |VVị becomes zero at X=1 which gives RC =1 from which the center frequency fe is f. = 2RC (24 The magnitude frequency response is v. V (x -1} +16X² x-1 (25 From which we can find the cutoff frequencies 27 5-2 fi = V5+2 2RC f = (2e 2RC

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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I need to explain how equations are simplified
For node of V
2 jøCV, +(V, -V.)+(V, -v.)=0
V, V.
+ joc
(16)
For node V2
+ joC(v, -V,)+ joC(V, -v.)= 0
26
joc
jaCV, + j@CV,
(17)
For node of V.
V. -v.)+ jac(V, -V,)=0
+ jo
+ jaCV,
(18)
Simplifying the above equations and using the substitution
X = RC
(19)
We get
(20)
2(1+ jX)
jX
V, =
(21)
2(1+ jx}W, +V.)
(V, + jXV;)
(1+,
(22)
Substituting equations (20) & (21) into Eq (22) and solving for V V we get the
transfer function
V.
X-1
(23)
V,
X-4 jX -1
It is clear that the value of |V/V becomes zero at X=1 which gives
RC =1
from which the center frequency fe is
f.
2RC
(24)
The magnitude frequency response is
|v.
V (x-1) +16Xx²
x'-1
(25)
From which we can find the cutoff frequencies
27
V5-2
V5+2
fi =
2RC
(26)
2.RC
Transcribed Image Text:For node of V 2 jøCV, +(V, -V.)+(V, -v.)=0 V, V. + joc (16) For node V2 + joC(v, -V,)+ joC(V, -v.)= 0 26 joc jaCV, + j@CV, (17) For node of V. V. -v.)+ jac(V, -V,)=0 + jo + jaCV, (18) Simplifying the above equations and using the substitution X = RC (19) We get (20) 2(1+ jX) jX V, = (21) 2(1+ jx}W, +V.) (V, + jXV;) (1+, (22) Substituting equations (20) & (21) into Eq (22) and solving for V V we get the transfer function V. X-1 (23) V, X-4 jX -1 It is clear that the value of |V/V becomes zero at X=1 which gives RC =1 from which the center frequency fe is f. 2RC (24) The magnitude frequency response is |v. V (x-1) +16Xx² x'-1 (25) From which we can find the cutoff frequencies 27 V5-2 V5+2 fi = 2RC (26) 2.RC
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