Working principle

In this model, we are showing the behavior of our Relay block, which mimics the Schmitt Trigger circuit. A Schmitt Trigger compares the input voltage to user-specified upper and lower voltage thresholds: the output is high after the upper threshold has been passed. The output will remain high until the lower threshold has been passed, after which the output is low.


  • Change the parameters of the circuit and verify that the Schmitt trigger still behaves correctly.