Invention Grant
US6148240A Method and apparatus for performing an open-loop current shaping for seeking acoustics reduction in a disk drive 失效
用于执行开环电流整形以寻求磁盘驱动器中的声学减少的方法和装置

Method and apparatus for performing an open-loop current shaping for
seeking acoustics reduction in a disk drive
Abstract:
Methods and apparatus for reducing overall seeking acoustics in a head-disk apparatus are disclosed. In accordance with one aspect of the present invention, a method for reducing overall seeking acoustics in a disk drive includes sending at least one current command sample to a power amplifier, prior to sending a full scale current command to the power amplifier. A seek current wave form with a smooth, non-linear rise is generated using the power amplifier such that the current command sample. In one embodiment, the full scale current command is arranged to cause the power amplifier to saturate. In another embodiment, the initial rise is a smooth, substantially bi-exponential initial rise.
Public/Granted literature
Information query
Patent Agency Ranking
0/0