What is VFD (Variable Frequency Drive)?

Definition

A power electronics device that controls AC motor speed by varying the frequency and voltage of the power supply. VFDs are the most widely used type of industrial drive, providing energy savings and precise motor control.

Related Terms

AC Drive

An electronic device that controls the speed and torque of an AC motor by varyin...

Inverter

The output stage of a drive that converts DC bus voltage into variable-frequency...

Frequency Converter

A device that converts fixed-frequency AC power to variable-frequency output for...

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