Download all schematics as PDFs: /KiCad-Simulation-Examples/assets/downloads/schematics-pdf.zip Or take the full kit with you (PDF + KiCad schematic + README): /KiCad-Simulation-Examples/assets/downloads/schematics-kit.zip

Schematic

Open project folder on GitHub

Demonstrates a free-running op-amp oscillator.

Circuit Summary

Positive feedback and RC timing create a relaxation oscillator.

Expected Behavior

  • Output is a square/triangle-like waveform with a predictable period.

How To Run

  1. Open OPamp-freerunning.kicad_sch in KiCad.
  2. Click Simulate and run the configured analyses.
  3. Add probes to the key nodes to view the expected behavior.

Notes

  • Change RC values to adjust oscillation frequency.