C h a p t e r 1 | M o t o r T y p e s a n d T h e i r C o n t r o l C h a l l e n g e s
protect the system from overcurrent
conditions. On the other hand, position
sensing provides feedback on the
rotor's position, allowing the controller
to adjust the motor's output to ensure
precise movements, synchronization,
and responsiveness.
These algorithms allow creating a closed-
loop feedback system that supports
precise motor control and is tolerant to
varying mechanical load conditions. This
allows for the creation of a precise servo
drive system, which can optimally follow
a desired position trajectory. Together,
these sensing mechanisms enable
smooth, controlled operation, even under
changing load conditions.
Advanced sensorless load detection
features based on the motor feedback
voltage (EMF) can close the gap between
open and closed loop control while
keeping the low cost of a traditional open
loop system. Mechanical load feedback
enables detection of overload situations
and thus increases reliability. Sensor-free
load adaptive current scaling based on
the detected motor load can furthermore
increase efficiency and prevent
resonances due to oscillating energy.
Analog Devices supports effective motor
control of various motor types by
• Offering precision current and position
sensing solutions that improve motor
efficiency and accuracy
• Providing solutions for integrated motor
controllers and drivers that reduce
component count and system complexity
There's no one-size-fits-all motor
control solution. Successful motor
and drive selection starts with
understanding the mechanical speed
and torque profile of the application
load. Every application will have
unique priorities and tradeoffs."
Lucas Paruch
Sr. Development Engineering Manager, MV Drives,
Yaskawa America
12
14 Experts Discuss Motor Control in Modern Applications
