A Variable Frequency Drive (VFD) is a sophisticated electronic device that manages the speed and torque of an AC motor by adjusting the frequency and voltage of its power supply. This technology allows for precise control over processes, helps save energy, and can even prolong the life of motors. VFDs are commonly found in various industries such as HVAC, water treatment, manufacturing, and material handling, where they facilitate smooth operation, enable soft starts and stops, and minimize mechanical wear.