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1. 发明授权

US06583968B1 Spindle motor hub having equivalent MR read element bias voltage to mitigate potential between disk and MR read element 失效
标题翻译：主轴电机集线器具有等效的MR读取元件偏置电压，以减轻磁盘和MR读取元件之间的电位
公开(公告)号：US06583968B1
公开(公告)日：2003-06-24
申请号：US10004159
申请日：2001-10-31
申请人： John E. Scura , Hossein M. Moghadam
发明人： John E. Scura , Hossein M. Moghadam
IPC分类号： G11B539
CPC分类号： G11B5/40 , G11B5/012 , G11B2005/0016
摘要： An aspect of the invention can be regarded as a disk drive that includes a disk drive base and a magnetic disk. The disk drive further includes a rotary actuator coupled to the disk drive base. The rotary actuator has an MR read element disposed adjacent the magnetic disk. The MR read element has a bias voltage. The disk drive further includes a rotatable spindle motor hub for rotating the magnetic disk positioned on the spindle motor hub. The spindle motor hub is in electrical communication with the magnetic disk. The spindle motor hub is mechanically coupled to and electrically insulated from the disk drive base. The disk drive further includes a circuit for applying a voltage equivalent to the bias voltage to the spindle motor hub such that a voltage potential between the MR read element and the magnetic disk is mitigated.
摘要翻译：本发明的一个方面可以被认为是包括磁盘驱动器基座和磁盘的磁盘驱动器。磁盘驱动器还包括耦合到磁盘驱动器基座的旋转致动器。旋转致动器具有邻近磁盘设置的MR读取元件。 MR读取元件具有偏置电压。磁盘驱动器还包括用于旋转位于主轴电机集线器上的磁盘的可旋转主轴电动机毂。主轴电机集线器与磁盘电连通。主轴电机集线器机械耦合到磁盘驱动器基座并与其电绝缘。磁盘驱动器还包括用于将等效于偏置电压的电压施加到主轴电机集线器的电路，从而减轻MR读取元件和磁盘之间的电压电位。

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