Design a constant $k$ low pass $T$ and $\pi$ section filters having cut-off frequency of $4 \mathrm{KHz}$ and nominal impedance of $500 \Omega$.

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written 2.5 years ago by

prajapatijaimin • 3.3k

Solution:

$f_c=4 \mathrm{kHz} \quad K=500 \Omega$

$\begin{aligned} \\ &L=\frac{K}{\pi f_c}=\frac{500}{\pi \times 4 \times 10^3}=39.79 \mathrm{mH} \\\\ &C=\frac{1}{\pi f_c K}=\frac{1}{\pi \times 4 \times 10^3 \times 500}=0.16 \mathrm{\mu f} \\ \end{aligned} \\$

The , $T$ the section consists of an inductor $L / 2$ i.e $19.9 …

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