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2. Variable-frequency drive - Wikipedia

   en.wikipedia.org/wiki/Variable-frequency_drive

   Small variable-frequency drive Chassis of above VFD (cover removed). A variable-frequency drive (VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive, variable voltage variable frequency drive, or drive) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the ...

3. Vacuum fluorescent display - Wikipedia

   en.wikipedia.org/wiki/Vacuum_fluorescent_display

   A VFD operates on the principle of cathodoluminescence, roughly similar to a cathode-ray tube, but operating at much lower voltages. Each tube in a VFD has a phosphor-coated carbon anode that is bombarded by electrons emitted from the cathode filament. [1] [2] In fact, each tube in a VFD is a triode vacuum tube because it also has a mesh ...

4. VHD (file format) - Wikipedia

   en.wikipedia.org/wiki/VHD_(file_format)

   Virtual Floppy Disk (VFD) is a related file format used by Microsoft Virtual PC, Microsoft Automated Deployment Services and Microsoft Virtual Server 2005. [ 17 ] [ 18 ] [ 19 ] A VFD that contains an image of a 720 KB low-density, 1.44 MB high-density or 1.68 MB DMF 3.5-inch floppy disk can be mounted by Virtual PC.

5. VFD - Wikipedia

   en.wikipedia.org/wiki/VFD

   VFD may refer to: ... Volunteer fire department; Technology. Vacuum fluorescent display; Variable-frequency drive, on ... (file type), in Microsoft Virtual PC; Other ...

6. Frequency changer - Wikipedia

   en.wikipedia.org/wiki/Frequency_changer

   A variable-frequency drive (VFD) is a type of frequency changer used for speed control of AC motors such as used for pumps and fans. The speed of a synchronous or induction AC motor is dependent on the frequency of the AC power supply, so changing frequency allows the motor speed to be changed.

7. Fla. Hooters Waitress Tried to Flirt Her Way Out of DUI ... - AOL

   www.aol.com/fla-hooters-waitress-tried-flirt...

   Police in Florida have released body-camera footage showing a Hooters waitress allegedly attempting to flirt her way out of being arrested on suspicion of DUI.

8. Is Alzheimer's linked to the cold-sore-causing herpes virus?

   www.aol.com/alzheimers-linked-cold-sore-causing...

   The virus causing cold sores may also be linked to Alzheimer’s risk, a new study suggests. Image credit: alvaro gonzalez/Getty Images. This article originally appeared on Medical News Today

9. Motor drive - Wikipedia

   en.wikipedia.org/wiki/Motor_drive

   A variable frequency drive (VFD) or variable speed drive (VSD) describes the electronic portion of the system that controls the speed of the motor. More generally, the term drive, describes equipment used to control the speed of machinery. Many industrial processes such as assembly lines must operate at different speeds for different products.