Interactive Zero Crossing Detector Simulator

Electronics-grade visualization of comparator-based zero crossing detection.

Signal Controls

Amplitude (V): 5 Frequency (Hz): 50 Phase (deg): 0 Noise (V): 0 Hysteresis (V): 0

Standard Equations

Vin(t)=A sin(2πft+φ)

Zero Crossing: Vin(t)=0

ωt=nπ

t=(nπ−φ)/(2πf)

Comparator Logic

If Vin > +Vref → HIGH

If Vin < -Vref → LOW

With hysteresis, switching thresholds become ±VH.

Live Measurements

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Electronics Workflow

AC Signal → Signal Conditioner → Comparator → Pulse Generator → Digital Output

Explanation

The simulator models an AC waveform, applies optional noise, evaluates comparator thresholds, detects zero crossings, and generates a digital output waveform.

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