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 ...

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 ...

Five high-efficiency, variable-speed electronically controlled motors (ECM) are designed for residential and light commercial air-moving applications. The motors utilize advanced technologies to ...

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 ...