Advanced bandpass filter

120

02:03:48

Detects 1kHz. Play with the potentiometers a bit to see what they do.
Dont start the simulation in the frequency plotter mode. Start it in normal mode and change the frequency to see how it works.

published 7 years ago

shaikhimtiyaz

7 years ago

Fine

eekee

5 years ago

This works, but you can scrap everything from the Zener diodes forward. The diodes merely add distortion, and the second op-amp does nothing the first can't do. Also, the filter frequency won't be quite right in normal mode because it's hard to make a simulator of this type get it right. That's what the feequency plotter mode is for.

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