公开(公告)号：US20100246051A1

公开(公告)日：2010-09-30

申请号：US12751740

申请日：2010-03-31

Applicant: Ezio Galbiati ,  Frederic Pascal Bonvin

Inventor： Ezio Galbiati ,  Frederic Pascal Bonvin

IPC: G11B15/48

CPC classification number: G11B19/2063

Abstract: A method and circuit to stop a spindle motor in the absence of the external supply voltage in which the spindle motor is structured to move a hard disk provided with at least one reading or writing head moved by a voice coil motor, the spindle motor provided with a plurality of coils. The method includes rectifying the backelectromotive force of the spindle motor to produce a braking current, driving the voice coil motor with at least a portion of the braking current until the speed of the spindle motor becomes lower than a predetermined stop speed, and, after the parking of the at least one reading or writing head of the voice coil motor, stopping the spindle motor by short-circuiting the coils of the spindle motor.

Abstract translation: 一种在没有外部电源电压的情况下停止主轴电机的方法和电路，其中主轴电机被构造成移动设置有由音圈电机移动的至少一个读/写头的硬盘， 多个线圈。 该方法包括整流主轴电动机的反电动势以产生制动电流，以至少一部分制动电流驱动音圈电动机，直到主轴电动机的速度变得低于预定的停止速度，并且在 停放音圈电动机的至少一个读写头，通过使主轴电动机的线圈短路来停止主轴电动机。

公开(公告)号：US08614859B2

公开(公告)日：2013-12-24

申请号：US12751740

申请日：2010-03-31

Applicant: Ezio Galbiati ,  Frederic Pascal Bonvin

Inventor： Ezio Galbiati ,  Frederic Pascal Bonvin

IPC: G11B21/02

CPC classification number: G11B19/2063

Abstract: A method and circuit to stop a spindle motor in the absence of the external supply voltage in which the spindle motor is structured to move a hard disk provided with at least one reading or writing head moved by a voice coil motor, the spindle motor provided with a plurality of coils. The method includes rectifying the backelectromotive force of the spindle motor to produce a braking current, driving the voice coil motor with at least a portion of the braking current until the speed of the spindle motor becomes lower than a predetermined stop speed, and, after the parking of the at least one reading or writing head of the voice coil motor, stopping the spindle motor by short-circuiting the coils of the spindle motor.

Abstract translation: 一种在没有外部电源电压的情况下停止主轴电机的方法和电路，其中主轴电机被构造成移动设置有由音圈电机移动的至少一个读/写头的硬盘， 多个线圈。 该方法包括整流主轴电动机的反电动势以产生制动电流，以至少一部分制动电流驱动音圈电动机，直到主轴电动机的速度变得低于预定的停止速度，并且在 停放音圈马达的至少一个读写头，通过使主轴马达的线圈短路来停止主轴马达。