- Task 4 Filter Circuits With Op Amps 28 Marks A From The Bode Plot Below Figure 4 Calculate The Voltage Gain 4 Ma 1 (117.97 KiB) Viewed 27 times
- Task 4 Filter Circuits With Op Amps 28 Marks A From The Bode Plot Below Figure 4 Calculate The Voltage Gain 4 Ma 2 (25.84 KiB) Viewed 27 times
Task 4 - Filter Circuits with Op-Amps (28 Marks) a) From the bode plot below, figure 4, calculate the voltage gain (4 Marks) b) From the bode plot below, figure 4, state the value of the 'knee-point' in dB (2 Marks) c) From the schematic calculate the cut-off frequency of this low-pass Butterworth filter (10 Marks) d) The voltage gain of the filter can be altered to produce a higher output voltage gain, whilst maintaining the cut-off frequency. i. Describe how to achieve this (6 Marks) ii. Alter the circuit via Multisim to raise the voltage gain and provide screen prints from appropriate instruments as evidence of success in achievement (6 Marks) Bode Plotter-XBP1 981.651 mHz 13.98 dB Figure 4 - Bode Plot
XFG1 AN of IE C1 1nF INPUT U1 4 R3 W 1180 OUTPUT OPAMP_3T_VIRTUAL R2 lt 10kΞ© R1 40ko XBP1 IN OUT XSC1 Figure 5 - filter circuit