Question

Prelab 10.1: Active lowpass filter Given the circuit shown in Figure 10.1 with Ri-R2-Rs-R4-R-1.0 [k2, and C 0.1 [uF (a) Represent the circuit in state-space form given by i(t) = ar(t) + bu(t), i.e., find the values of parameters a, b, c, and d. (b) Find the expression for the transfer function, G(s) the complex frequency (Laplace) domain. (c) Find the expression of the frequency transfer function H(f) and the value of the half power frequency, fB in Hz (d) Plot the magnitude and the phase of the frequency transfer function, H(f), versus the frequency (in Hz) using MATLAB. [Note: You will need to have two plots; one plot for the magnitude and a second plot for the phase.] In one plot, show the input and the output of the circuit ifs() for t E (e) 5 cos(10π) +5 cos 1000nt)+5 cos(5000 t) s, where t, with fmax being the maximum frequency of the input signal (in [Hzl). [0, 100,

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100 σ CS) ハシ 2 2. -V; LS) -v,CS) VoCS) vCS S 10S=tf([1591. 55],[1 1591.55]);
bode(S)

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