This circuit simulation illustrates waveform shaping from a square wave to a sine-like wave using passive components. A 1 kHz square wave input is applied to an LC low-pass filter formed by a 50 mH inductor and a 1 µF capacitor. The filter attenuates higher harmonics of the square wave, allowing mainly the fundamental frequency to pass through. As a result, the output waveform becomes smoother and more sinusoidal. Such filtering techniques are commonly used in signal conditioning and audio appli

This simulation demonstrates a multi-stage waveform generator built using op-amps, producing triangle, sine, and square waves simultaneously. The first op-amp stage acts as an integrator, converting a square wave into a linear ramp, creating the triangle waveform. The second stage shapes the triangle wave into a clean sine wave using filtering and amplitude control. Another stage generates a square wave by comparing the sine or triangle waveform against a threshold, resulting in sharp transition