In motion control applications, you frequently hear all sorts of loops -- open, closed, current, torque, speed, voltage, and so on. Here, we define and explain these terms.

Especially with commonly used totally enclosed fan cooled (TEFC) and open drip proof ... There are two main methods for controlling the speed of a motor – scalar control and vector control. 1.

Imprecise speed control can also lead to problems with chassis resonance, audible harmonics or performance during airflow blockage. Very precise management of speed can be achieved with a method known ...

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 ...

How about an analogue motor speed control? These are things that I have never given much though to – I knew they compensated for something in a sort-of open-loop way, but not what. Anyway, after ...

In this case, they’re being used to create a basic PWM motor controller. The trick is to set the 555 up in astable mode, and use diodes and a potentiometer in the charge/discharge loop.

Precise setting of a speed profile is done by the built-in non-volatile memory (NVM) and TC78B027FTG therefore eliminates the need for an external MCU for a closed loop speed control.

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