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Analog ElectronicsComparators & Waveform Generators

A zero-crossing detector is essentially a comparator whose reference voltage is?

  • A0 V
  • B1 V
  • CEqual to the positive supply
  • DAlways equal to the output
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Correct Answer: A. 0 V
Explanation: A zero-crossing detector compares the input with a zero-volt reference and switches output polarity when the input crosses zero.
Reference: Standard analog electronics: zero-crossing detector
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