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.

A new variable-speed fan drive system with gearbox from Horton and Hub City provides more efficient cooling for rear-engine buses, motor homes and motor coaches with side-mounted cooling modules, ...

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 ...

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 ...

Fans are often used to ventilate agricultural buildings. Adjoining rooms with connecting air paths through open doors or manure channels can operate as a single room with a common negative pressure.

A brushless-DC motor is common in ceiling fan and pan-tilt-zoom (PTZ) camera designs. But you can’t use the same brushless-DC motor solution for both of these end products. A ceiling fan driver ...