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.

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 ...

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.

Since closed-loop heating relies upon various components for precision feedback and optimized control, the system can incur additional hardware/software costs versus an open-loop system, which can ...

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

Withclosed loop speed control, the fan controller ensures that the fan isrunning at the desired speed by measuring the actual speed and adjustingthe duty cycle accordingly. Here the host specifies the ...

The new closed-loop cooling system has helped Process Conversions control process cooling temperatures within plus or minus 3° F, vs. plus or minus 5° F with the old system.