LM317
The LM317 is like a helper that helps make sure a car has enough gasoline to go where it needs to. In this case, the car is an electronic circuit, and the gasoline is called electricity.
The LM317 is a small piece that controls how much electricity goes into the circuit. It checks how much electricity is already in the circuit and adjusts so that the right amount of electricity goes in and the circuit can run properly.
To make it simpler, imagine you're building a toy car. You need to put batteries in it so it can move, but if you put too many batteries, the car will go too fast and maybe crash. That's where the LM317 comes in. It makes sure the right amount of electricity goes into the car, so it moves smoothly without crashing.
The LM317 is a small piece that controls how much electricity goes into the circuit. It checks how much electricity is already in the circuit and adjusts so that the right amount of electricity goes in and the circuit can run properly.
To make it simpler, imagine you're building a toy car. You need to put batteries in it so it can move, but if you put too many batteries, the car will go too fast and maybe crash. That's where the LM317 comes in. It makes sure the right amount of electricity goes into the car, so it moves smoothly without crashing.