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The ETB-167 Zero Crossing Detector trainer is designed to help students and professionals understand how operational amplifiers (OP-AMPs) are used to detect zero crossings in AC signals. This experiment is critical in signal processing, control systems, and phase detection. The trainer comes with a built-in regulated power supply, making it a standalone unit ready for classroom and lab experiments. The circuit uses a comparator configuration of the OP-AMP to detect when an input waveform crosses the zero-voltage level, converting sinusoidal signals into clean square pulses. This setup is essential for learning waveform shaping and triggering in digital electronics. Key Features:
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