What is the primary function of an oscillator?

The primary function of an oscillator is to generate a repetitive waveform. Oscillators are essential in various electronic applications because they create a continuous, oscillating output signal, usually in the form of a sine, square, or triangle wave. These waveforms are foundational to many electronic systems, such as clocks, timers, and communication devices, where precise timing and frequency control are crucial.

By producing a consistent signal, oscillators enable the synchronization of different components within a system and facilitate the transmission of information, especially in radio frequency applications. Their role is distinct from other functions like converting AC to DC, which is done by rectifiers, isolating signals, or amplifying them, which involves different types of circuits designed specifically for those tasks.