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Comparator

 


Transfer characteristic of an ideal comparator when Vref is positive voltage

Non-inverting Comparator

 


Non-inverting Comparator

Inverting Comparator

Inverting Comparator
 

Applications of Comparators

Comparators are commonly used in

  • Zero-crossing detector circuits
  • Window detector circuits
  • Multivibrators
  • Time-marker generators
  • Phase meters
  • Schmitt triggers 

Zero-Crossing Detector

The inverting or non-inverting comparator can be used as a zero-crossing detector circuit.

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Zero-crossing detector circuit

 





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