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公开(公告)号：US07692394B2
公开(公告)日：2010-04-06
申请号：US09995206
申请日：2001-11-27
CPC分类号： G11B19/20
摘要： A motor current control method is provided to reduce voltage and current spikes within a spindle motor and a power supply. Subsequently, the amount of current applied to the spindle motor is monitored. In addition, an apparatus for limiting motor power is provided.
摘要翻译： 提供电动机电流控制方法以减少主轴电动机和电源内的电压和电流尖峰。 随后，监测施加到主轴电动机的电流量。 此外，提供了一种用于限制电动机功率的装置。
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公开(公告)号：US6011375A
公开(公告)日：2000-01-04
申请号：US979888
申请日：1997-11-26
IPC分类号： G05B11/28
CPC分类号： G05B11/28
摘要： A disc drive includes an apparatus for limiting coil energization current to a programmable value. A current sensor is operatively coupled to a coil and provides a signal which is indicative of current flow through the coil. A configurable voltage source is responsive to a control signal. A current inhibitor is operatively coupled to the output of the current sensor and the voltage source such that the current inhibitor selectively inhibits current flow through the coil based on results of a comparison between the current sensor signal and a voltage supplied by the configurable voltage source. A method of calibrating a current control threshold is also provided as well as a method of controlling the coil energization current.
摘要翻译： 磁盘驱动器包括用于将线圈通电电流限制到可编程值的装置。 电流传感器可操作地耦合到线圈并提供指示电流通过线圈的信号。 可配置的电压源响应于控制信号。 电流抑制器可操作地耦合到电流传感器和电压源的输出，使得电流抑制器基于电流传感器信号与由可配置电压源提供的电压之间的比较结果，选择性地阻止电流通过线圈流动。 还提供了校准电流控制阈值的方法以及控制线圈通电电流的方法。
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公开(公告)号：US6166503A
公开(公告)日：2000-12-26
申请号：US384461
申请日：1999-08-27
摘要： A disc drive includes an apparatus for limiting coil energization current to a programmable value. A current sensor is operatively coupled to a coil and provides a signal which is indicative of current flow through the coil. A configurable voltage source is responsive to a control signal. A current inhibitor is operatively coupled to the output of the current sensor and the voltage source such that the current inhibitor selectively inhibits current flow through the coil based on results of a comparison between the current sensor signal and a voltage supplied by the configurable voltage source. A method of calibrating a current control threshold is also provided as well as a method of controlling the coil energization current.
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公开(公告)号：US06731453B2
公开(公告)日：2004-05-04
申请号：US09893379
申请日：2001-06-27
申请人： Garry E. Korbel , Brian R. Pollock
发明人： Garry E. Korbel , Brian R. Pollock
IPC分类号： G11B5596
CPC分类号： G11B25/043 , G11B33/144
摘要： A disc drive comprises a drive motor mechanically coupled to a disc and a voice coil motor mechanically coupled to a read/write head on the disc. A power integrated circuit is electrically coupled to the drive motor and the voice coil motor. The power integrated circuit includes an integrated temperature sensor that provides a temperature output. A control circuit receives the temperature output and provides a voice coil motor control output to the power integrated circuit as a function of the temperature output.
摘要翻译： 盘驱动器包括机械耦合到盘的驱动马达和机械耦合到盘上的读/写头的音圈马达。 电力集成电路电耦合到驱动电动机和音圈电动机。 功率集成电路包括提供温度输出的集成温度传感器。 控制电路接收温度输出，并根据温度输出向功率集成电路提供音圈电机控制输出。
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公开(公告)号：US5093595A
公开(公告)日：1992-03-03
申请号：US693048
申请日：1991-04-29
申请人： Garry E. Korbel
发明人： Garry E. Korbel
CPC分类号： G11B19/2009 , H02K1/2786 , H02K21/22
摘要： A disc drive includes a stationary frame and vertical spindle shaft, and a hub rotatable relative to the spindle shaft and supporting one or more magnetic discs. A motor for rotating the hub includes an annular stator integrally secured to the spindle shaft, and a rotor assembly integral with the hub. The rotor assembly includes an annular magnet and an annular back iron, with the magnet being spaced apart from the stator to define an air gap. The magnet includes four longitudinally disposed arcuate poles of equal size, separated from one another by flux gaps. Each of the poles has a medial region and first and second end regions on opposite sides of the medial region. The medial region is selectively magnetized to a level less than the level to which the end regions are magnetized, creating a flux gap and torque profile for the magnet particularly effective in reducing torque ripple.
摘要翻译： 盘驱动器包括固定框架和垂直主轴，以及可相对于主轴转动并支撑一个或多个磁盘的轮毂。 用于旋转轮毂的电动机包括一体地固定到主轴的环形定子和与轮毂一体的转子组件。 转子组件包括环形磁体和环形后铁，其中磁体与定子间隔开以限定气隙。 磁体包括四个相同大小的纵向设置的弧形极，通过磁通间隙彼此分离。 每个极具有在中间区域的相对侧上的中间区域和第一和第二端区域。 内侧区域被选择性地磁化到低于末端区域被磁化的水平的水平，产生用于磁体的通量隙和扭矩分布，在减小转矩波动方面特别有效。
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公开(公告)号：US06977477B2
公开(公告)日：2005-12-20
申请号：US09995433
申请日：2001-11-27
CPC分类号： G11B19/28 , Y10S388/902
摘要： Systems and methods are provided through which the current to a spindle motor of the recording medium of a mass storage device is modulated to avoid anomalies in the operation of mass storage device and reduce power consumption. In the example of a disc drive, the current is modulated to prevent expected or predicted disturbances in the air bearing between a read/write head and the recording medium, and to reduce the power consumption when no disturbances are predicted or expected.
摘要翻译： 提供了系统和方法，通过该系统和方法，调节大容量存储装置的记录介质的主轴电动机的电流以避免大容量存储装置的操作中的异常并且降低功耗。 在磁盘驱动器的示例中，电流被调制以防止在读/写头和记录介质之间的空气轴承中的预期或预测的干扰，并且当没有预测或预期的干扰时降低功耗。
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公开(公告)号：US06747838B2
公开(公告)日：2004-06-08
申请号：US09893130
申请日：2001-06-27
IPC分类号： G11B5596
CPC分类号： G11B33/144 , G11B5/5521
摘要： An apparatus and associated method used to control a disc drive having at least one disc and a transducer positionable relative to the disc by a motor. The motor receives energization through at least one power switch integrated on a semiconductor circuit. Temperature of the circuit is sensed proximate the power switch. A temperature signal is provided which is indicative of whether the sensed temperature meets one of a plurality of different threshold temperatures. The power switch is controlled in one of a plurality of different control modes based upon the temperature signal.
摘要翻译： 一种用于控制具有至少一个盘的盘驱动器和通过马达相对于盘定位的换能器的装置和相关联的方法。 电机通过集成在半导体电路上的至少一个电源开关接收通电。 在电源开关附近感应电路的温度。 提供了温度信号，其指示所感测的温度是否满足多个不同阈值温度中的一个。 基于温度信号，将电源开关控制在多种不同控制模式之一中。
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8.发明授权Method and apparatus for controlling a motor in a disc drive by modulating the commutation angle 失效通过调制换向角来控制盘驱动器中的电动机的方法和装置
公开(公告)号：US6016043A
公开(公告)日：2000-01-18
申请号：US14756
申请日：1998-01-28
摘要： A motor control circuit controls a motor in a disc drive is provided. The motor control circuit includes a commutation circuit which provides commutation signals to the motor to commutate the motor at a commutation frequency. A frequency modulation circuit is operably coupled to the commutation circuit. The frequency modulation circuit provides a modulation signal which frequency modulates the commutation frequency according to a predetermined pattern.
摘要翻译： 提供了控制盘驱动器中的电动机的电动机控制电路。 电动机控制电路包括换向电路，其向电动机提供换向信号，以换向频率换向电动机。 频率调制电路可操作地耦合到换向电路。 频率调制电路提供根据预定模式对换流频率进行频率调制的调制信号。
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