g. 10 Hz. Ri Rh Cf Rf Ch Figure 3: passive high-pass filter connected in cascade with active low-pass filter
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The transfer function of a passive high-pass filter is given by: H_hp(s) = Rh / (Rh + 1/(sCh)) Where s is the Laplace variable. Show more…
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Two first-order lowpass filters are in cascade as shown in Figure $\mathrm{P} 6.46$. The transfer functions are $H_{1}(f)=H_{2}(f)=\frac{1}{1+j\left(f / f_{B}\right)}$ a. Write an expression for the overall transfer function. b. Find an expression for the half-power frequency for the overall transfer function in terms of $f_{B}$
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