A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is
A nonlinear PID scheme is proposed as an efficient hard disk drive servo controller, reducing the settling time and lowering the required control effort. The controller is capable of increasing (decreasing) damping effect when the system output is moving away from (towards) the desired track. This is carried out by utilizing a derivative action tuned by a nonlinear function to provide the system with the needed level of damping. Simulation results, including step function response, controlfatcat:blzx2l3jjjhylfczwq7kbi53tq