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Transfer function of a circuit in Matlab

by XuFyaN
Tags: matlab, transfer function
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XuFyaN
#1
Feb27-12, 08:35 AM
P: 50
1. The problem statement, all variables and given/known data


What will be the transfer function in form of I2 / V1 of this circuit

http://img813.imageshack.us/img813/198/6…



2. The attempt at a solution

here is my coding but it shows incorrect answer,
>> syms I I2 R1 R2 V1 S c L
>> eq1 = I*R1 + L*S*(I-I2)-V1

eq1 =

I*R1 - V1 - L*S*(I2 - I)

>> eq2 = L*S*(I2-I)+I2*R2+I2/(c*S)

eq2 =

I2*R2 + I2/(S*c) + L*S*(I2 - I)

>> d = solve(eq1,V1)

d =

I*R1 - I2*L*S + I*L*S

>> e = solve(eq2,I2)

e =

(I*L*S)/(R2 + 1/(S*c) + L*S)

but after doing f=e/d it shows incorrect answer (the answer doesn't match with the one my teacher told)
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MisterX
#2
Feb28-12, 02:10 AM
P: 581
There's a problem with that link.
XuFyaN
#3
Feb28-12, 02:46 AM
P: 50
The circuit is attached now, kindly have a look
Attached Thumbnails
Untitled.png  


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