How to convert transfer function into LC ladder ?

[zmliu]

LC Ladder conversion

Please tell me how to convert transfer function into LC ladder quickly except the methods in Design of Analog Filters? Hand calculation or computer-based software?
Thanks.

 

[DoctorX]

Re: LC Ladder conversion

Please tell me how to convert transfer function into LC ladder quickly except the methods in Design of Analog Filters? Hand calculation or computer-based software?
Thanks.

Check out this to see if it helps you.
**broken link removed**

Also this Matlab program, that does T(s) to LC ladder conversion:

<P13_4_a.m>
clear;
D = [1 4.4939592 10.0978347 14.5917939 14.5917939 10.0978347 4.4939592 1];
S7 = [1 0 0 0 0 0 0 0];
Num = D + S7;
Den = D - S7;
%Num = [1 0 6 0 8]
%Den = [1 0 4 0 3]
N = length(Num);

for i = 1:N-1
Decomp(i) = Num(i)/Den(i+1);
for j = i:N-1
ReNum(j) = Num(j) - Decomp(i)*Den(j+1);
end
ReNum(N) = Num(N);
Num = Den; Den = ReNum;
end
disp('The continual decomposition coefficients for ''s'' are:');
for i = 1:N-1
fprintf('%6.5f\n', Decomp(i));
end
fprintf('The last resistive term is %6.5f / %6.5f \n', Num(N), Den(N));

 

[ccw27]

Re: LC Ladder conversion

I need some LC ladder tutorial. Particularly how to synthesize a LPF given a transfer function with poles and zeros.

Thanks