发明授权
- 专利标题： Perpendicular magnetic recording write head with ladder network compensation circuitry on slider body for write current overshoot at write current switching
- 专利标题（中）： 垂直磁记录写头，带梯形图网络补偿电路，滑块体用于在写入电流切换时写入电流过冲
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申请号： US13306552申请日： 2011-11-29
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公开(公告)号： US08824077B2公开(公告)日： 2014-09-02
- 发明人: John Thomas Contreras , Samir Y. Garzon , David John Seagle
- 申请人： John Thomas Contreras , Samir Y. Garzon , David John Seagle
- 申请人地址： NL Amsterdam
- 专利权人： HGST Netherlands B.V.
- 当前专利权人： HGST Netherlands B.V.
- 当前专利权人地址： NL Amsterdam
- 代理商 Thomas R. Berthold
- 主分类号： G11B5/09
- IPC分类号： G11B5/09
摘要：
Write enhancement circuitry on the head carrier of a magnetic recording disk drive provides additional write current overshoot beyond that provided by the write driver circuitry. The write enhancement circuitry is formed on the head carrier as ladder network blocks. A first ladder network block is a first capacitor C1 located in parallel with the write coil. The second ladder network block includes a second capacitor C2 having substantially the same inductance L2. The compensation circuitry is referred to as a ladder network because additional ladder blocks, like the second block but with different values of capacitance and inductance, may be located on the head carrier.
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