Analog Filters - Basics, First Order, Ideal Filters, RC Low Pass, Phasor Diagram, Bode Plot

In this tutorial we focus on the very basics of passive analog filters. The most simple analog filter, a passive low pass filter, is described by the means of an RC circuit. In order to understand all it's implications, a simple capacitor, as well as some important descriptions of its behavior, like the bode plot and the phasor diagram, are elucidated.

Tutor: Michael Fuchs

Chapters:

0:00 Intro
1:12 Ideal Filters
3:15 The RC Low Pass Filter
7:16 Behavior of a Capacitor
10:04 The Phasor Diagram
12:45 The Bode Plot
16:27 Conclusion

Additional Links:

- How capacitors work:
https://www.youtube.com/watch?v=otQGdPLyF3w
https://www.build-electronic-circuits.com/how-does-a-capacitor-work/
- Free filter design tool:
https://rf-tools.com/lc-filter/
- Institute of Electronics / TU Graz: https://ife.tugraz.at https://www.tugraz.at
- Like us on Facebook: https://www.facebook.com/ife.tugraz.at

Production: TU Graz – Educational Technology