The open-loop control system is a continuous control system that provides no feedback from its output. The control process, therefore, ... The 400ksps 16-bit input channels, and high-speed 16-bit ...

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.

Not so fast. The next complaint you’re going to get from product test is excessively long ramp-up and ramp-down times for the fan. Also, it may have ceased to oscillate, but never reaches the desired ...

The PID speed control can be implemented in firmware or hardware logic. Figure 18 and Figure 19 showa closed-loop implementation in hardware and firmware respectively.With closed-loop speed control, ...