Colpitts Oscillator

A Colpitts oscillator is a circuit that generates a continuous, repeating electronic signal, often a sine wave, without needing an external input. It uses an amplifier and a special resonant circuit with two capacitors and an inductor, which select a specific frequency. The design feeds energy back from the resonant circuit to sustain the oscillation. This arrangement ensures stable frequency output, making the Colpitts oscillator common in radio transmitters and signal generators. Its stability and simplicity make it a reliable choice for generating precise signals in electronic devices.