What is Variable Frequency Drive?

Definition

A power electronics device that controls AC motor speed by varying output frequency and voltage. Variable frequency drives are the most widely used industrial drives, providing energy savings and precise motor control.

Related Terms

VFD (Variable Frequency Drive)

A power electronics device that controls AC motor speed by varying the frequency...

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...

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