3 ms·
Awesome project with a great README. This makes me want to dust off my ancient analog electronics knowledge. Does anyone know why the second stage op-amp clean
by anthomtb 2y ago
Awesome project with a great README. This makes me want to dust off my ancient analog electronics knowledge.
Does anyone know why the second stage op-amp cleaned up the signal so much? It appears to have removed a higher-frequency oscillation, leaving a very clean, nearly square-shaped wave.
- duskwuff 2y agoThe second op-amp is configured as a comparator. It drives its output to the positive rail when the input exceeds a threshold, and low otherwise. The higher-frequency oscillations aren't anywhere near the threshold, so they disappear.