Today, however, low-cost microcontrollers for motor-control applications give engineers an economical way to employ variable-speed motor control. “It's never been easier to control motors,” says ...

A recent world-wide interest in the environmental friendliness, water consumption, and energy saving particularly impinges on the home appliance area. The actual regulatory standards and ...

The topic of motors and motor control techniques is wide and varied. Part one of this two-part article will cover the principles of alternating-current (AC) motor operation and control. Part two will ...

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 ...

Variable frequency drives come in all sizes, as these two VFDs from Yaskawa America Inc. demonstrate. Both are in the companyâ s A1000 Series of drives and are powered by three-phase 380 to 480 V.

Turndown ratio in AC motor speed control July 31, 2019 by William V. Schrottky, Technical Writer, eMotors Direct Inc.

Variable speed drives are the usual way of approaching this goal. The typical way of controlling ac motor speed is with an inverter. The ac from the grid is first rectified to dc.