公开(公告)号：US06512649B1

公开(公告)日：2003-01-28

申请号：US09651830

申请日：2000-08-30

Applicant: Roberto Alini ,  Quocdzung T. Lam ,  Xiaokun Liu Chew ,  Mark McCornack ,  David Joseph Bezinque ,  Tehri Lee ,  Su Dang Le ,  Axel Alegre de La Soujeole ,  Gilles Denoyer

Inventor： Roberto Alini ,  Quocdzung T. Lam ,  Xiaokun Liu Chew ,  Mark McCornack ,  David Joseph Bezinque ,  Tehri Lee ,  Su Dang Le ,  Axel Alegre de La Soujeole ,  Gilles Denoyer

IPC: G11B502

CPC classification number: G11B5/022 ,  G11B5/012 ,  G11B5/02 ,  G11B5/09 ,  G11B5/40 ,  G11B2005/001 ,  G11B2005/0013

Abstract: A method is disclosed for controlling the write head of a magnetic disk storage device. The method includes sinking current from the first terminal of the write head and sourcing current to the second terminal of the write head substantially simultaneously with sinking current from the first terminal so that a first steady state voltage level appears on the first terminal of the write head and a second steady state voltage level appears on the second terminal thereof that are approximately at a midpoint between a high reference voltage level and a low reference voltage level. The common mode voltage of the write head is substantially constant over time.

Abstract translation: 公开了一种用于控制磁盘存储装置的写入头的方法。 该方法包括从写入头的第一端子吸收电流并且将源电流基本上与来自第一端子的电流进行同时地馈送到写入头的第二端子，使得第一稳态电压电平出现在写入头的第一端上 并且第二稳态电压电平出现在其第二端上，其大约在高参考电压电平和低参考电压电平之间的中点。 写入头的共模电压随时间基本上是恒定的。