公开(公告)号：US06188540B1

公开(公告)日：2001-02-13

申请号：US09107889

申请日：1998-06-30

申请人： Kah Liang Gan ,  Beng Wee Quak ,  Kok Hoe Chia ,  Chee Wai Lum

发明人： Kah Liang Gan ,  Beng Wee Quak ,  Kok Hoe Chia ,  Chee Wai Lum

IPC分类号： G11B5596

CPC分类号： G11B21/12 ,  G11B5/5547 ,  G11B5/596

摘要： A system, method, and device for moving a plurality of heads in a disk drive is disclosed. The system comprises hard disks, read/write heads for reading from or writing to the hard disks, a voice coil motor for moving the plurality of heads, a voice coil motor driver for energizing the voice coil motor, a voltage clamp device for regulating a voltage across the voice coil motor, and a park voltage source. The voltage clamp device comprises a transistor, a switch, and a resistive divider network. During head parking, a park voltage source activates the voltage clamp device, which clamps the voltage across the voice coil motor to a fixed value, resulting in movement of the voice coil and heads towards a park location with fixed velocity.

摘要翻译： 公开了一种用于移动磁盘驱动器中的多个磁头的系统，方法和装置。 该系统包括硬盘，用于读取或写入硬盘的读/写头，用于移动多个磁头的音圈电机，用于激励音圈电机的音圈电机驱动器，用于调节音圈电机的电压钳装置 音圈电机两端的电压，以及驻波电压源。 电压钳位装置包括晶体管，开关和电阻分压器网络。 在停车期间，公园电压源激活电压钳位装置，其将音圈电动机上的电压钳位到固定值，导致音圈和头部以固定速度朝向公园位置移动。