Biomedical Engineering Reference
In-Depth Information
and
1
100
1
C ¼
R a ¼
4000 ¼
2
:
5
m
F
100
A plot of the magnitude versus frequency is shown in the following figure. As can be seen, the
cutoff frequency gives a value of magnitude equal to 3.53 at 100 Hz, which is the design goal.
6
5
4
3
2
1
0
0
200
400
600
800
1000
1200
1400
Frequency (rad/s)
Example Problem 9.30 demonstrates the technique to create band-pass filters (which
require two cutoff frequencies).
EXAMPLE PROBLEM 9.30
Using the band-pass filter in the following circuit, design the filter to have a gain of 5 and pass
through frequencies from 100 to 500 rad
s
.
C L
R b L
R b H
R a L
+
+
R a H
+
+
V S
C H
v L
v 0
Continued
Search WWH ::




Custom Search