Discussion in 'Homework Help' started by pyromancer, May 26, 2011.

1. ### pyromancer Thread Starter New Member

May 26, 2011
2
0
Hey guys, I am looking for some help in this question.

The question is;

"Design a lowpass filter, with cutoff frequency 1640 rad/sec. The maximum gain of the filter should be 17,44 dB, and the filter gain at angular frequency 3912 rad/sec should be no more than -23,10 dB."

Thanks!

2. ### ErnieM AAC Fanatic!

Apr 24, 2011
7,447
1,628
You don't have much time left. You should immediately commence a design of a lowpass filter, with cutoff frequency 1640 rad/sec. The maximum gain of the filter should be 17,44 dB, and the filter gain at angular frequency 3912 rad/sec should be no more than -23,10 dB.

I suggest you start by checking your course book and any notes you took in class.

Good luck!

3. ### jegues Well-Known Member

Sep 13, 2010
735
43
Start by making an attempt at doing the design yourself. If you get stuck, post where why and what've you got so far.

Surely you weren't expecting us to do your homework for you, right?

4. ### pyromancer Thread Starter New Member

May 26, 2011
2
0
Of course I wasn't but I couldn't find order of filter, we use Pearson Electric Circuit as a book and when i look formula from there which is "n=(-0.05).A/log(Ws/Wp)" it doesnt work, our teacher says that wouldn't determine from there, but I cannot find. At least you can show that how i find order of filter.
thanks.