Adjustable speed drives (ASDs) or variable speed drives (VSDs), also called variable frequency drives (VFDs), typically control a motor's velocity or torque output. Most adjustable frequency drives ...

A recent trend in nuclear power plant upgrades has been the replacement of the motor-generator (MG) sets that drive the reactor circulating pumps with variable-frequency drives (VFD). Siemens’ first ...

The Exar XR-2206 function-generator IC cangenerate square, triangular, and sinusoidalsignals with low distortion. Its outputfrequency is inversely proportionalto the components in an RC ...

Renewable energy continues to be a massive trend around the world. As methods for capturing wind, solar, and other forms of renewable energy have developed, the cost and efficiency of renewable energy ...

Ask any system designer to name the top three reasons for specifying a variable-frequency drive (VFD), and you probably won't hear a lot of “maintenance cost reduction” responses in return. Instead, ...

Single- and three-phase alternating current (AC) motor speed can be controlled by controlling the frequency of the voltage coming to it. Motor speed has a lot to do with the capacity of refrigeration ...