The way we control the speed of fan motors or pump motors has tremendously changed in the past two decades with the introduction of variable-frequency drives (VFDs), aka variable-frequency controllers ...

CHARLOTTE, N.C., July 1, 2022 /PRNewswire/ -- QM Power announced the launch of Q-Sync® VS, a new line of industry-leading energy efficient variable speed permanent magnet AC (PMAC) fan motors.

The ZXBM2000 series of controller ICs offers a complete variable-speed solution for two-phase, dc brushless fan and blower motors up to 100 W. The controllers ...

Speed, torque, and horsepower are three inter-related parameters in motor control. The speed of a motor, measured in revolutions per minute (rpm), defines a motor's ability to spin at a rate per unit ...

I've got a 120mm 120VAC fan I've been using as a desk fan, plugged directly into mains with a lamp cord. (Note for non-US readers: mains here is 120VAC, 60Hz, so I am using it at its rated specs.) I ...

It is interesting to look at figures from the Energy Information Administration about where energy gets consumed in our economy. These figures reveal that industrial uses account for 31% of all energy ...

Choosing the right motor and VFD type depends on a variety of factors, however, it is necessary to first look at how the characteristics of a motor change when the speed is reduced —Sponsored article ...

As the amount of power dissipated by personal computer's CPU and other heat sources has increased, brushless DC fan control has progressed through several levels of improvement to keep temperatures ...