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Schmitt trigger? Answered

Can someone explain to me how a Schmitt trigger works like I'm a 5 year old?


Thank you

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What do you mean ? It compares its input with a reference, if the input is less than the reference it stays in one state, if its more than the reference, if changes state.

NOW

If its more than the reference - some percentage, it stays in the same state, if its less than (reference-some percentage) it changes state.

The key thing is the action of the term "some percentage", because that stops the output dickering around with signals "close to" the reference.