A variable-frequency drive (VFD, or adjustable-frequency drives, adjustable-speed drives, variable-speed drives, AC drives, micro drives, inverter drives, or drives) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the input electricity. Depending on its topology, it controls the associated voltage or current variation.
by Munshi Man October 31, 2023
Get the Variable Frequency Drive (VFD) mug.by con"eriba February 26, 2022
Get the variable algebra mug.When you commit to do something fun with your friends only to be told by your partner you have to change your plans.
by Daniel O’Rourke August 1, 2025
Get the Late variables mug.Variables that occur when the two explanatory variables , x and z, have a collective causation effect on y. The difference between the two cannot be distinguished because there is not enough evidence to determine the validity of a statistical relationship.
Weight gain is greatly influenced by activity level, but age, the confounding variable, also plays an influential role on weight gain.
by YolandaSquatbike December 8, 2021
Get the Confounding Variable mug.A complex, multi-national algorithm that requantifies statistics based on the needs of the most nefariously inept.
One legged Timmy didn't have a chance in hell at being the worlds fastest man, until his SJW soccer mom petitioned the equality police. After they applied the Dominion variable, One legged Timmy IS the worlds fastest man!
by TheGman692000 January 7, 2021
Get the Dominion variable mug.the act of focusing on an appealing portion of a person's body with a general disregard for the undesirable regions
Steve: Could you isolate the variable on that?
John: You know it. She's huge, but those are some mighty fine sweater cows.
Bill: You see that?!?!
James: You serious? She's hideous.
Bill: C'mon you gotta isolate the variable.
James: You right. She needs to turn back around though.
John: You know it. She's huge, but those are some mighty fine sweater cows.
Bill: You see that?!?!
James: You serious? She's hideous.
Bill: C'mon you gotta isolate the variable.
James: You right. She needs to turn back around though.
by tmack41 December 7, 2011
Get the isolate the variable mug.The fact that different random samples of the same size from the same population produce different estimates.
by 3d5jllppgaydunerboogers December 4, 2021
Get the Sampling Variability mug.