Filters: Intuitive Understanding

1
Filters Intuitive Understanding
Impedance
Transfer Function
Low-pass filters
2
Filters Intuitive Understanding
Low-pass filters
At low frequency
At high frequency
Dimensionless Frequency
3
Filters Intuitive Understanding
High-pass filters
At low frequency
At high frequency
4
Filters Intuitive Understanding
Band-pass or Band-stop Filters
High-pass
Low-pass
Low-pass
High-pass
High-pass

Low-pass
5
Filters Intuitive Understanding
Band-pass or Band-stop Filters
Band-pass
Band-stop
High-pass
Low-pass
6
Complex Frequency and Laplace Transform
Phasor and Impedance
What if
Define complex frequency
7
Transfer Function
Bode Plot Matlab FREQS
8
Filters Intuitive Understanding
Active filters
Low pass filter
9
Transfer Function
Active Band-pass or Band-stop Filters
High-pass

Low-pass
Transfer Function? Quiz
10
High Order Filters
Filter order ? Determined by the or of the
Denominator of the transfer function
Cascade Connections
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11
Band Pass Filter
Transfer Function
Center Frequency?
What if the transfer function is described as
12
Effect of Function Generator
Cascade Connection
Center Frequency