Data Storage Device Comprising Slew Rate Anti-Windup Compensation for Microactuator

Apr 1, 2015ยท
Minghui Zheng
Xu Chen
Xu Chen
,
Haiming Wang
,
Young-Hoon Kim
,
Wei Xi
,
Kuang-Yang Tu
ยท 0 min read
Abstract
A data storage device is disclosed comprising a disk, a head, and a microactuator configured to actuate the head over the disk. An input signal to a compensator is generated, wherein the compensator is configured to generate a microactuator control signal. A slew rate signal representing a slew rate of the microactuator control signal is generated and applied to a first saturator configured to generate a saturated slew rate signal. The input signal is adjusted based on the slew rate saturation signal, and the microactuator is controlled based on the microactuator control signal.
Type
Publication
Google Patents