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In applications where low-level signals must be amplified, there may be present one or more of an assortment of unwanted noise signals, for example

In applications where low-level signals must be amplified, there may be present one or more of an assortment

In applications where low-level signals must be amplified, there may be present one or more of an assortment of unwanted noise signals, for example 50-, 60- or 400-Hz frequencies from power lines, 120-Hz ripple from full-wave rectifiers or power supplies. If both signals and a signal-frequency noise component are passed through a notch filter, only the desired signals will exit from the filter. A notch filter is made by a circuit that subtracts the output of a bandpass filter from the original signal. Design a notch filter bank to eliminate a 100-Hz and 200-Hz noise hum simultaneously. The notch filter should have a maximum stopband bandwidth of 20 Hz. The gain of the filter in the passband should be unity. The frequency response of the filter should be equal to the following: 1.0 0.707 30d0 Pass Stopband F1 F2 F3 Pas Pan Stopband B F4 F5 F6 -1 The project report should include all documentation including design schematics, simulations, computations, and testing strategy. Also, the report must have a conclusion explaining your findings and possible sources of error. Use the AC analysis and Bode Plotter in Multisim to determine the frequency response of your filter bank.

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