RC band stop filter
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Question
Answer the following with illustration and solutions.
2. Design a basic wide-band, RC band stop filter with a lower cut-off frequency of 250 Hz and a higher cut-off frequency of 1.2kHz. Find its center frequency, bandwidth and Q of the circuit assuming the capacitor for both filter sections is 0.1 microfarad.
Thia is the example that might help.

Transcribed Image Text:Example: Band-pass Filter Circuit
Design a basic wide-band, RC band stop filter with a lower
cut-off frequency of 200HZ and a higher cut-off
frequency of 800Hz. Find the value of the resistor for
both frequencies, its center frequency, bandwidth and Q
of the circuit assuming the capacitor for both filter
sections is 0.1uF
For resistor values of the filters:
1
= 7.95kN
R, =
2nf.C
1
RH =
2nfµC¯ 2n(800HZ)(0.1µF)
%3D
2п (200H2) (0.1иF)
= 1.99kN
For the center frequency:
fr = fi × fu = /(200H2)(800H2) = 400HZ
For the bandwidth:
BW = fµ – f.
BW = 800HZ – 200HZ
For the quiescent point (operating point):
fr
Q =
400HZ
= 0.67
%3D
BW
600HZ
BW = 600HZ
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