The OMDC-MD series is a compact programmable DC speed control with digital closed loop feedback and LED display for DC motors rated to 2 hp.

[Misan] has the solution to this: closed loop control of DC motors for a 3D printer. Most printer firmwares use an open loop control system for moving their motors around.

A closed loop speed control function regulates and maintains the motor rotational speed under dynamic power fluctuations and load variations, a valuable feature for mission-critical applications ...

The OMDC-MD Series programmable dc speed control features digital closedloop feedback and LED display for dc motors rated to 2 hp.

Feedback control methods implemented using low-cost microprocessors enable significant gains for single-phase ac motor speed controls.

Toshiba’s Hall sensorless sine-wave drive three-phase brushless DC motor control pre-driver IC helps reduce vibration and noise of high-speed motors.

CONTROL ARRANGEMENTS FOR D.C. DRIVES The most common arrangement, which is used with only minor variations from small drives of say 0.5 kW up to the largest industrial drives of several megawatts, is ...

JVL QuickStep closed-loop integrated stepper motors provide higher torque, faster acceleration, torque control, stall free operation and quieter movements than traditional step motor systems.