Voltage scaling

Imagine you're playing with a toy car and you have a remote control with a button that makes it go faster or slower.

Now, electronics work the same way. Electronic devices like your phone or computer have components inside called transistors that are like tiny switches that turn on and off to make things happen. One way to make these components use less power is to slow them down, just like your toy car.

We can slow them down by adjusting the amount of electricity, or voltage, that goes through them. If we lower the voltage, the transistors slow down and use less power. This is called voltage scaling.

It's kind of like changing the throttle on your toy car remote, but instead of making the car go slower, it makes the electronics go slower to save power. This helps the battery last longer and makes devices more energy-efficient.