ELI5: Explain Like I'm 5

Flyback diode

Okay, so imagine you have a toy car with a motor inside that makes it go forward. You also have a battery that powers the motor. When you press a button to make the car go, the motor gets power from the battery and it moves forward.

Now imagine you suddenly stop pressing the button while the car is still moving. What do you think will happen? That's right, the car will continue moving forward for a little while, right? But the motor will still be getting power from the battery because it hasn't been turned off.

This is where a "flyback diode" comes in. It's like a superhero for your toy car motor! It's a special little device that connects to the motor and helps protect it from getting damaged when you suddenly stop giving it power.

When you press the button to make the car go, the flyback diode turns on and lets the power flow from the battery to the motor. But when you stop pressing the button, the flyback diode does something very important. It lets the power flow back out of the motor and into the battery, which makes the car slow down and stop safely.

So basically, a flyback diode is a little device that helps protect your toy car (or other electronic device) from getting damaged when you suddenly stop giving it power. It's like a safety net that catches your toy car and makes sure it doesn't crash!