How schmitt trigger works
The signal drives the inverting input. R1 feeds the output back to the non-inverting input and R2 returns it to ground. Positive feedback produces separate rising and falling thresholds. The waveform starts high and switches only when a threshold is crossed.
Ideal ±5 V switching levels. The generic op-amp guest is an educational comparator approximation, not a model of a specified comparator’s delay or output swing.
Change the form inputs or click a component value on the schematic. Choose Try in CircuitSim to simulate the configured circuit.