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46 条记录 (耗时 0.019 秒)

    Pulse power during a shut down in a hard disk drive
    11.
    发明授权
    Pulse power during a shut down in a hard disk drive 有权
    在硬盘驱动器中关闭期间的脉冲电源

    公开(公告)号：US08593752B2

    公开(公告)日：2013-11-26

    申请号：US12901227

    申请日：2010-10-08

    申请人： Toshihisa Kiyonaga ,  Yasuhiro Iihara ,  Yoshiroh Amano ,  Yoshifumi Kataoka

    发明人： Toshihisa Kiyonaga ,  Yasuhiro Iihara ,  Yoshiroh Amano ,  Yoshifumi Kataoka

    IPC分类号： G11B19/04

    CPC分类号： G11B19/047 ,  G11B19/2081 ,  G11B21/12

    摘要： A HDD including write components configured to operate within an operating voltage range, charging circuitry comprising a charging capacitor. The charging capacitor includes a higher voltage when charged than the operating voltage range. The HDD also includes pulse circuitry configured to pulse power from the charging circuitry to the write components within the operating voltage range during a controlled shut down of the write components such that remaining data-sector bits are written during the controlled shut down.

    摘要翻译： 包括构造成在工作电压范围内操作的写入组件的HDD，包括充电电容器的充电电路。 充电电容器在充电时包括比工作电压范围更高的电压。 HDD还包括脉冲电路，其被配置为在写入组件的受控关闭期间将来自充电电路的功率脉冲到工作电压范围内的写入组件，使得在受控关闭期间写入剩余的数据扇区位。

    Disk drive system employing effective disk surface stabilization mechanism
    12.
    发明授权
    Disk drive system employing effective disk surface stabilization mechanism 有权
    磁盘驱动系统采用有效的磁盘表面稳定机制

    公开(公告)号：US07852723B2

    公开(公告)日：2010-12-14

    申请号：US11652027

    申请日：2007-01-11

    申请人： Nobuaki Onagi ,  Yasutomo Aman ,  Shozo Murata

    发明人： Nobuaki Onagi ,  Yasutomo Aman ,  Shozo Murata

    IPC分类号： G11B11/095 ,  G11B27/36

    CPC分类号： G11B7/08 ,  G11B5/5582 ,  G11B7/0037 ,  G11B7/0946 ,  G11B7/0953 ,  G11B7/0956 ,  G11B11/1055 ,  G11B19/042 ,  G11B19/2081 ,  G11B21/12 ,  G11B23/0035 ,  G11B23/005 ,  G11B33/08

    摘要： A stabilization part stabilizes surface vibration of a flexible optical disk along a rotation axis direction of the optical disk by means of pressure difference of air flow created according to Bernoulli's law at a portion on which information writing/reading is performed, provided on a side of the optical disk opposite to a side on which information recording/reproducing is performed. In this case, areas are provide on the upstream side and down stream side along the disk rotation direction of the portion of the optical disk which is stabilized by said stabilization part, said areas of the optical disk not having pressure difference created thereon by the air flow.

    摘要翻译： 稳定部件通过根据伯努利定律在执行信息写入/读取的部分产生的空气流的压力差沿着光盘的旋转轴线方向稳定柔性光盘的表面振动，该部分设置在 该光盘与执行信息记录/再现的一侧相对。 在这种情况下，沿着由所述稳定部稳定的光盘的部分的盘旋转方向的上游侧和下游侧设置区域，所述光盘的不具有由空气产生的压力差的区域 流。

    Automatic head retract system for disk drive
    14.
    发明授权
    Automatic head retract system for disk drive 失效
    磁盘驱动器自动回缩系统

    公开(公告)号：US4786995A

    公开(公告)日：1988-11-22

    申请号：US927916

    申请日：1986-11-06

    申请人： Donald G. Stupeck ,  Gaston A. Palombo ,  Ara W. Nazarian ,  Hugh K. Gagnier

    发明人： Donald G. Stupeck ,  Gaston A. Palombo ,  Ara W. Nazarian ,  Hugh K. Gagnier

    IPC分类号： G11B19/20 ,  G11B21/12 ,  G11B5/54

    CPC分类号： G11B19/2081 ,  G11B21/12

    摘要： An automatic head retract system for a disk drive is disclosed which operates in response to electric power turn off to retract the heads to a landing zone on the disk surface. The heads are retracted by operating a positioner motor under the control of logic internal to the disk drive unit without intervention by a host computer. The positioner motor comprises a multiphase DC brushless motor which, after power loss, is supplied with current from a capacitor charged during normal drive usage and by the back EMF of a spindle motor. A latch mechanically locks the heads in the landing zone.

    摘要翻译： 公开了一种用于磁盘驱动器的自动磁头缩回系统，其响应于电力关闭而操作，以将磁头缩回到盘表面上的着陆区域。 在通过主机计算机的干预的情况下，通过在磁盘驱动器单元内部的逻辑控制下操作定位器电动机来使磁头缩回。 定位电动机包括一个多相直流无刷电动机，在断电后，从正常驱动使用期间充电的电容器和主轴电动机的反电动势供给电流。 闩锁将头部机械地锁定在着陆区域中。

    Data storage device employing a phase offset to generate power from a spindle motor during a power failure
    16.
    发明授权
    Data storage device employing a phase offset to generate power from a spindle motor during a power failure 有权
    在电源故障期间采用相位偏移从主轴电机产生功率的数据存储装置

    公开(公告)号：US09343102B1

    公开(公告)日：2016-05-17

    申请号：US14668940

    申请日：2015-03-25

    申请人： Western Digital Technologies, Inc.

    发明人： Michael Troy Nicholls ,  Joseph J. Crowfoot

    IPC分类号： G11B19/20 ,  H02P6/18

    CPC分类号： G11B19/2081 ,  G11B19/2009 ,  H02P3/14 ,  H02P6/182

    摘要： A data storage device is disclosed comprising a disk, a spindle motor configured to rotate the disk, wherein the spindle motor comprises a plurality of windings, and a head actuated over the disk. The windings are commutated based on a commutation sequence while applying a periodic driving voltage to each winding, wherein the periodic driving voltage comprises an operating amplitude during normal operation. When a supply voltage falls below a threshold, the spindle motor is configured into a power generator by at least adjusting a phase of the periodic driving voltage by a phase offset and adjusting the amplitude of the periodic driving voltage based on the phase offset.

    摘要翻译： 公开了一种数据存储装置，包括盘，被配置为旋转盘的主轴马达，其中主轴马达包括多个绕组，以及在盘上致动的头。 在对每个绕组施加周期性驱动电压的同时，基于换向序列对绕组进行整流，其中周期性驱动电压在正常操作期间包括工作幅度。 当电源电压低于阈值时，主轴电动机通过相位偏移至少调整周期性驱动电压的相位并基于相位偏移来调节周期性驱动电压的幅度来配置成发电机。

    Current boost circuit
    17.
    发明授权
    Current boost circuit 有权
    电流升压电路

    公开(公告)号：US09240742B1

    公开(公告)日：2016-01-19

    申请号：US14099558

    申请日：2013-12-06

    申请人： Seagate Technology LLC

    发明人： Dale H Erickson ,  James D Bucher, II

    IPC分类号： H02P23/00 ,  H02P7/29

    CPC分类号： G11B19/2081 ,  G11B21/12 ,  H02P25/034 ,  H02P29/025 ,  H02P29/032

    摘要： Systems and methods are disclosed for providing a current boost to support a voltage. In an embodiment, an apparatus comprises a voltage node; a switch coupled to the voltage node; a sensing circuit including an input coupled to the voltage node and an output for providing a corresponding voltage; and a voltage regulator coupled to receive the corresponding voltage and coupled to control the switch responsive to the received corresponding voltage. In an embodiment, a method comprises sensing a voltage; using a voltage regulator to turn on a switch responsive to the sensed voltage being less than a certain value; and providing additional current through the on switch to substantially maintain the voltage from being less than the certain value.

    摘要翻译： 公开了用于提供电流增压以支持电压的系统和方法。 在一个实施例中，一种装置包括电压节点; 耦合到所述电压节点的开关; 感测电路，包括耦合到所述电压节点的输入端和用于提供相应电压的输出; 以及电压调节器，其被耦合以接收对应的电压并被耦合以响应于所接收的相应电压来控制所述开关。 在一个实施例中，一种方法包括感测电压; 使用电压调节器响应于所感测的电压小于特定值来接通开关; 并通过开启开关提供额外的电流，以使电压基本上维持在小于该值。

    MOTOR DRIVE DEVICE, MAGNETIC DISK STORAGE DEVICE, AND ELECTRONIC APPLIANCE
    20.
    发明申请
    MOTOR DRIVE DEVICE, MAGNETIC DISK STORAGE DEVICE, AND ELECTRONIC APPLIANCE 有权
    电动驱动装置，磁盘存储装置和电子装置

    公开(公告)号：US20140300993A1

    公开(公告)日：2014-10-09

    申请号：US13857546

    申请日：2013-04-05

    申请人： ROHM CO., LTD.

    发明人： Yoshito OTAGURO

    IPC分类号： G11B19/28 ,  H02P6/00

    CPC分类号： G11B19/047 ,  G11B19/2081 ,  G11B19/28 ,  H02P6/14 ,  H02P6/34 ,  H02P25/028 ,  H02P25/034

    摘要： A motor drive device has a motor driver adapted to receive a first power supply voltage to drive a motor; an internal regulator adapted to generate from an input voltage an internal power supply voltage; and a power supply switcher adapted to receive both the first power supply voltage and a second power supply voltage lower than the first power supply voltage to output, as the input voltage, the second power supply voltage when the second power supply voltage is normal and to output, as the input voltage, the first power supply voltage when the second power supply voltage is abnormal.

    摘要翻译： 电动机驱动装置具有适于接收第一电源电压以驱动电动机的电动机驱动器; 适于从输入电压产生内部电源电压的内部稳压器; 以及电源切换器，适于接收第一电源电压和低于第一电源电压的第二电源电压，以在第二电源电压正常时输出第二电源电压作为输入电压，并输出到第二电源电压 作为输入电压输出第二电源电压异常时的第一电源电压。