The closed loop fan controller works by comparing desired speed with actual speed and generating a fan command to minimize the difference. In concept, this can be implemented very simply.

UNDERSTANDING CLOSED-LOOP FAN SPEED CONTROL By Ken W. Gay, SMSC When implementing cooling solutions for electronic equipment, system designers are confronted with a complex set of variables. The ...

With a smart controller, the phase angle can be adjusted to provide a linear control feedback. With a closed-loop, smart controller, a true linear speed change can be provided.

With closed-loop control, poor performance typically manifests itself as deviations from set point. By analyzing these deviations, one can determine if they are caused by suboptimal controller tuning ...

A closed-loop heating system comprises a heat source, means for temperature feedback (i.e., thermocouple), and controller. In a closed-loop heating system, the controller—usually a PLC or a ...

The biggest improvement is that AR2 had a closed-loop control system, and AR3 is open-loop. If something bumps the arm or it crashes, the bot will recover its previous position automatically.

Electronic control logic and system components are described that are used with a venturi carburetor to accomplish the fuel metering required in a closed loop emission control system. Special open ...

This is a representation of the drug delivery system. Serving as the acoustic indicator of drug delivery dosage, the microbubble emission signal y(t) is used to find the expected controller output ...