Deadband is a special term that is used to describe a certain range of values that won't make any difference. Imagine that you are playing with a toy car that can go really fast or really slow. Deadband is like a speed where the car won't move no matter how much you push the pedal.
In the world of technology and engineering, deadband is used to set a limit where nothing will happen if a value falls within that limit. For example, if you set the deadband limit for a temperature sensor at 70°F, the system won't take any action until the temperature rises above 70°F or falls below it. This helps to prevent unnecessary changes, and also ensures that the system stays within its limits.
Overall, deadband is a way to make sure that a system doesn't react too much to small changes, and only responds when it's really necessary. It's like a safety mechanism that keeps everything under control.