ELI5: Explain Like I'm 5

Voltage-controlled oscillator

Okay kiddo, you know how music sounds different when someone sings it high or low? It's the same thing with electricity. Voltage is like the "pitch" of electricity.

Now imagine a machine that can change the "pitch" of electricity just by changing the voltage going into it. That's basically what a voltage-controlled oscillator (VCO) does.

A VCO is a special type of electronic circuit that creates a sound or signal with a frequency that can be changed by the amount of voltage applied to it. So if you add more voltage, the sound or signal will get higher in pitch, and if you take away voltage, it will get lower in pitch.

VCOs are used in all sorts of things like synthesizers, radio transmitters, and even some video game consoles! They're pretty important because they allow us to create and change all kinds of sounds and frequencies in electronics.