33K views · 640 reactions | SQUARE WAVE GENERATOR: It's a square wave generator using an op-amp in an astable configuration. The frequency is set by POT1 and capacitor C1, and the output toggles between 0V and 5V. An LED indicates the output, and the waveform shows a clean square wave with a near 50% duty cycle. #opamp #circuitdesign #CircuitSimulation #electronics #electronicsrd #ElectronicsEducation | Electronics Education | Facebook

This is a summing amplifier circuit using an op-amp. It combines multiple input signals into a single output by summing them through input resistors. By feeding sine waves of different odd harmonics (like 1st, 3rd, 5th, etc.) with decreasing amplitudes, the circuit can approximate a square wave at the output. #opamp #electronicsrd #ElectronicsEducation | Electronics Education