Question

P3. For each of the circuits in Fig. P-3, do the following: ·Write the transfer function relating the indicated output and input signals and plot the fre- quency response of the circuit (use Matlab for this one) Simulate the circuit in Multi-Sim and display its Bode plot (which that can be directly ob- tained in Multi-Sim): you can use an input of your choice of the form A cos(2mf) for some amplitude A and frequency f in H2. Attach a copy of the plots and the simulated circuit schematic . What is the function of each circuit? 6K2 R3 Ri Ci 5nF Fig. P-3.

Answer 1

Bode Plotter-XBP1 Mode Magnitude Phase R1 1.6㏀ V.1 1kHz Vertical Log Lin C1 25nF F15 kHz dB XBP1 kHz -50 dB R2 1.6㏀ L1 400mH Reverse Set... IO 6.204 dB XBP2 Bode Plotter-XBP2 Phase IO Log Lin Lin kHz F 720 kHz I -720 Set... ← 1KHz 11.73 Deg In O -

Bode Plotter-XBP1 Mode Magnitude Phase R1 R2 1 ,992kΩ U1 Horizontal Log Lin Log Lin 1nF GHz F XBP1 V.1 C1 I-50 "v 1kHz Reverse Sav Set... OPÁMP.3T VIRTUAL IO ← 1Hz 98.051 dB +O In + Out XBP2 Bode Plotter-XBP2 Mode Phase Horizontal Vertical Log Lin GHz F 720 Hz Lin F 20 11-720 İDeg Controls Set. ← 1Hz -90.001 Deg + Out
circuit 1 acts like a band reject filter while circuit 2 acts as band pass filter