〜 Pi & T Filter Calculator
Design 3rd-order Butterworth LC low-pass filters in Pi (CLC) or T (LCL) topology.
$$C_1 = C_2 = \dfrac{1}{Z_0\,\omega_c} \qquad L = \dfrac{2Z_0}{\omega_c} \qquad \omega_c = 2\pi f_c$$
C₁ = C₂
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L
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Cutoff Frequency
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Characteristic Impedance
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$$L_1 = L_2 = \dfrac{Z_0}{\omega_c} \qquad C = \dfrac{2}{Z_0\,\omega_c} \qquad \omega_c = 2\pi f_c$$
L₁ = L₂
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C
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Cutoff Frequency
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Characteristic Impedance
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