For most closed-loop feedback control systems, phase margin is greater than 45° (less than 315°) when the loop gain is greater than 0 dB. Gain margin is -20 dB or lower when the loop phase delay ...

A closed-loop control system is an automated system that continuously monitors and adjusts its performance to achieve a desired output. It uses feedback, typically derived from a sensor, to compare ...

Take a look at mechatronics' applications in diverse industries, such as automotive engine systems, hard-disk drives and Web-transport systems, and you'll find a growing emphasis on "sensorless ...

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.