Overdrives
Overdrive is a term used in several disciplines to describe operating beyond the normal linear range of a system or device, or, in automotive terminology, a high gear that reduces engine speed at cruising speeds. The precise meaning varies by context, but the common themes are signal distortion when pushed beyond linear limits and improved efficiency through higher gear ratios.
In electronics and audio, overdrive describes the region where an active device is driven beyond its linear
In vehicles, overdrive refers to a top gear in an automatic transmission (or a separate gear set)
Other uses include electrical overload scenarios where a signal or input exceeds a circuit's maximum ratings,