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    • 6. 发明授权
    • System and method for adjusting head-to-disk spacing in a disk drive
    • 用于调整磁盘驱动器中磁盘间距的系统和方法
    • US07310195B1
    • 2007-12-18
    • US11101113
    • 2005-04-07
    • Erhard SchreckFrancis P. CrimiAndrew LeFebvreDuc BanhThao Anh NguyenBrian StromBruce C. Schardt
    • Erhard SchreckFrancis P. CrimiAndrew LeFebvreDuc BanhThao Anh NguyenBrian StromBruce C. Schardt
    • G11B21/02G11B5/596G11B5/58
    • G11B5/6005
    • A disk drive includes a drive housing, a storage disk, a slider and a drive circuitry. The storage disk has an inner and an outer diameter. The slider includes a read/write head and a slider mover that receives power from the drive circuitry to position the read/write head at a predetermined head-to-disk spacing during radial movement of the slider relative to the storage disk. The drive circuitry can direct a varying level of power to the slider mover during radial movement of the slider. In addition, the drive circuitry can increase the power to the slider mover as the read/write head nears a target track in order to decrease the head-to-disk spacing at the appropriate time. The drive circuitry can adjust the power to the slider mover so that the head-to-disk spacing remains within a predetermined range as the slider moves radially relative to the storage disk. The drive circuitry can also direct power to the slider mover so that the head-to-disk spacing is substantially the same at the start of a seek operation and when the read/write head arrives at a target track. The drive circuitry can also direct power to the slider mover based at least partially on the temperature of a portion of the slider.
    • 磁盘驱动器包括驱动器壳体,存储盘,滑块和驱动电路。 存储盘具有内径和外径。 滑动器包括读/写头和滑块移动器,其在驱动器相对于存储盘的径向移动期间从驱动电路接收功率以将读/写头定位在预定的头到盘间隔。 驱动电路可以在滑块的径向运动期间将变化的功率级别引导到滑块移动器。 此外,当读/写头靠近目标轨道时,驱动电路可以增加滑块移动器的功率,以便在适当的时间减小头对盘间距。 驱动电路可以调节滑块移动器的功率,使得当滑块相对于存储盘径向移动时,磁头到磁盘间隔保持在预定范围内。 驱动电路还可以将电力引导到滑块移动器,使得在寻道操作开始时和当读/写头到达目标轨道时,磁头到磁盘的间距基本相同。 驱动电路还可以至少部分地基于滑块的一部分的温度将功率引导到滑块移动器。