What is the function of Schmitt trigger?

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6. What is meant by Big O notation?
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Tags

1. #converts
2. #feedback
3. #comparator
4. #which
5. #hysteresis
6. #schmitt
7. #input
8. #output
9. #circuit
10. #applying
11. #differential
12. #digital
13. #positive
14. #trigger
15. #implemented
16. #analog
17. #amplifier
18. #electronics
19. #signal
20. #noninverting
21. #active