Question

Simulation For each filter mentioned in the following cases, first simulate the circuit using Multisim. You can get a plot of the transfer function that is called the Bode plot. From the right toolbar, select "Bode Plotter". Change initial (I) and final (F) frequencies to 1Hz and 200 KHz, respectively. Use a Voltage AC source as the input signal. You do not need to change any parameter from voltage AC source. Connect "Bode Plotter" to input and output of your circuit accordingly. Run the simulation and find the cutoff frequency. At the cutoff frequency, the amplitude drops by 3dB or to 70.7% of the maximum. You can find the cutoff frequency by setting the vertical I value to-3 dB. Bode Plotter-XBP XBP1 Horicontal Vertical Log Lin Lin Log IN F |200 Controls Reverse V3 1Vpk 1kHz Measurement For each filter, follow these steps Magnitude Plot Build the filters using op-amp 741. Apply a 10-volt peak-peak sinusoidal waveform (set by observation on Channel 1 of the oscilloscope) at the input of the filter On Channel 2 of the oscilloscope, observe the output Vary the frequency in order to find the cutoff frequency/ , which is the frequency at which the output voltage drops by 3 dB or to 70.79% of the maximum. -Find Vo/Vijas a ratio and in dB at 0.01 f,0.1 . 10 fe, and 100 fe Note: Vo/Vil in dB is calculated using 20log Vo/Vi Plot Vo/Vilin dB. Use a logarithmic scale for frequency a) Active Low-Pass Filter R1-10k0 741 Vin Vout 0.01 fc 10 100 fe Frequern Vo/ Vi 20log Vo/Vi

Answer 1

At fc

At 0.1fc

Bode Plotter-XBP1 Mode Magnitude Phase Vertical Horizontal Log Log GHz dB F 10 1 1 dB Controls Reverse Save Set... -0.041 dE Out 1.518 kHz

At 0.01fc

Bode Plotter-XBP1 Mode Magnitude Phase Horizontal Vertical Log Lin Log Lin GHZ F10 Hz F 1 dB 50 Controls Reverse Save Set... 157.643 ㎐ -0.001 dB + In-O Out-

At 10fc

At 100fc

	0.01fc	0.1fc	fc	10fc	100fc
Frequency	0.156K	1.56K	15.6K	156K	1.56M
Gain Vo/Vi	0.9999	0.995	0.707	0.1	0.01
20 log (Vo/Vi) in dB	-0.001	-0.04	-3	-20	-41