Bandpass Filter component calculations.

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SUMMARY

The discussion focuses on calculating components for a Bandpass Filter, which is a combination of Low Pass Filter (LPF) and High Pass Filter (HPF) configurations. Participants emphasize the importance of understanding the relationship between poles and zeros in the filter design, particularly when they are spaced apart, making calculations simpler. The conversation also highlights the necessity of using transfer functions to derive the required equations for accurate component values.

PREREQUISITES
  • Understanding of Bandpass Filter design principles
  • Knowledge of Low Pass Filter (LPF) and High Pass Filter (HPF) configurations
  • Familiarity with transfer functions in circuit analysis
  • Basic concepts of poles and zeros in filter design
NEXT STEPS
  • Study the design and calculations for Bandpass Filters using transfer functions
  • Learn about the significance of poles and zeros in filter performance
  • Explore practical applications of cascaded LPF and HPF in signal processing
  • Investigate software tools for simulating Bandpass Filter designs
USEFUL FOR

Electrical engineers, audio engineers, and students studying signal processing who are looking to deepen their understanding of Bandpass Filter calculations and design methodologies.

Petrucciowns
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Once again I'm going through all my old homework and taking the notes I should have done in the past, and I am stuck on calculating the components on a Bandpass filter. How would I go about this. I have the answers I just want to know how to find them.
Thanks

http://img31.imageshack.us/img31/676/bandpass.jpg
 
Last edited by a moderator:
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Petrucciowns said:
Once again I'm going through all my old homework and taking the notes I should have done in the past, and I am stuck on calculating the components on a Bandpass filter. How would I go about this. I have the answers I just want to know how to find them.
Thanks

http://img31.imageshack.us/img31/676/bandpass.jpg

That's sort of a cascaded LPF + HPF, right? If the pole and zero are pretty far apart, that makes the values easier to calculate (Quiz Question -- why?). How close are the poles in this question? Can you use the approximation? If not what equation do you need to write (hint -- something about a transfer function)?
 
Last edited by a moderator:
Yes bandpass filters are Low pass and High pass filters in series. As to the quiz question, I have heard the term poles used many times, but have no clue as what they refer to.
 

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