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Pengujian catu daya (SMPS) Alfa dengan beban resistif

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Pada tulisan sebelumnya sudah saya ungkap perakitan salah satu SMPS produksi Alfa. Di toko elektronik saya lihat setidaknya ada tiga varian SMPS produksi Alfa. Karena tidak ada kode yang jelas maka sebut saja ini pengujian produk SMPS Alfa 12 A “kotak merah” 🙂 .

 

 

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Written by sunupradana

December 14, 2011 at 12:17 pm

Control Systems/Root Locus – Wikibooks, open books for an open world

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Example: Root-Locus Using MATLAB/Octave

Use MATLAB, Octave, or another piece of mathematical simulation software to produce the root-locus graph for the following system:

T(s) = K\frac{s + 2}{(s + 3)(s^2 + 2s + 2)}

First, we must multiply through in the denominator:

D(s) = s3 + 5s2 + 8s + 6

Now, we can generate the coefficient vectors from the numerator and denominator:

num = [0 0 1 2];
den = [1 5 8 6];

Next, we can feed these vectors into the rlocus command:

rlocus(num, den);

Note:In Octave, we need to create a system structure first, by typing:

sys = tf(num, den);
rlocus(sys);

Written by sunupradana

June 9, 2011 at 4:30 pm

Posted in Control Systems, Komputer

Tagged with , , , ,