Where did they get vid/2 from? How did they get R/ R + delta and why multiply it to V+ and V-?

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Where did they get vid/2 from? How did they get R/ R + delta and why multiply it to V+ and V-?
R
R-A
VIn) O
A2
VOUT
VIN(+) O
R
R+ 4
Figure Q2 (a)
Transcribed Image Text:R R-A VIn) O A2 VOUT VIN(+) O R R+ 4 Figure Q2 (a)
biferental guin
Asume the input :
Vid= Vo - V-
%3D
Vid
ニ
V. :
V+ (R-A) - V. (R+A)
CR+A) (R-A)
Vo= Vt R
R _R N =
R+A
R-A
No = R
Vid (R-A)+ Vid (R+A)
2(R+4) (RA)
Ad= Ve -R/
Vid
R-4 +R+4
21 R1A) ( R-A)/
(R+A) (R-D)
2(R+A) (R-A)/
Transcribed Image Text:biferental guin Asume the input : Vid= Vo - V- %3D Vid ニ V. : V+ (R-A) - V. (R+A) CR+A) (R-A) Vo= Vt R R _R N = R+A R-A No = R Vid (R-A)+ Vid (R+A) 2(R+4) (RA) Ad= Ve -R/ Vid R-4 +R+4 21 R1A) ( R-A)/ (R+A) (R-D) 2(R+A) (R-A)/
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