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Compare the comparator and Schmitt trigger.
1 Answer
| written 3.1 years ago by |
Solution:
| comparator | schmitt trigger |
|---|---|
| feedback is not used op-amp operates in an open loop configuration. | Positivefeedback is used |
| For an ideal comparator the upper and lower trigger levels happen to be at zero volts or at the Vref. | The upper and lower trigger levels have distinct values. |
| The output voltage can be either $+V_{\text {sat or - Vat }}$ | The output voltage conn be either Heat or -Vat |
| For an ideal comparator hysteresis voltage is zero | $V_H=V_{U T}-V_{L T}$. A nonzero hysteresis is present. |
| zero crossing detector, window detector. | To convert any waveform to a square wave. |