Active Lowpass Filter from a Passive Highpass

134

03:10:38

First stage is a simple passive RC highpass filter. Second stage is an op amp in a differential configuration. I made this only to check the concept: 
(original signal) - (lowpass signal) = (highpass signal)

published 9 years ago

j4k3

9 years ago

The ST Micro app (no affiliation) available through google play, has some great op amp filter calculators for this type of simulation. I came on here to try some of them out in simulation :)

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.