185k views
2 votes
You wish to filter out 60 Hz noise (which arises from electrical interference at the frequency of AC current in our electrical grid) using a simple RC circuit, which is one useful form has a transfer function:

G(s) = 1/RCS + 1
a. What value of the product RC should you choose so that amplitude at 60 Hz is attenuated by 90%?
b. For that value of RC, what is the largest frequency that is attenuated by less than 5%?
c. Turn in a Bode plot for your proposed system generated in Matlab.

User Kewitschka
by
4.0k points

1 Answer

5 votes

Answer:

a. 0.02639

b. 1.98H

Step-by-step explanation:

Please see attachment

You wish to filter out 60 Hz noise (which arises from electrical interference at the-example-1
You wish to filter out 60 Hz noise (which arises from electrical interference at the-example-2
You wish to filter out 60 Hz noise (which arises from electrical interference at the-example-3
You wish to filter out 60 Hz noise (which arises from electrical interference at the-example-4
User Aruna Mudnoor
by
3.9k points