What is the output waveform of a zero-crossing detector when the input signal is any periodic signal that crosses zero threshold?
A) sine wave
B) rectangular
C) sawtooth
D) Lissajous

Question

Quizplus · Accepted Answer

A zero-crossing detector produces a rectangular waveform as output, which goes high or low every time the input signal crosses 0 Volts. This applies to any periodic signal that crosses the zero threshold, regardless of its waveform. Therefore, the best choice is B - rectangular waveform.

What Is the Output Waveform of a Zero-Crossing Detector When