发明申请
US20050174668A1 Impedance-matched write circuit with shunted matching resistor 有权
具有分流匹配电阻的阻抗匹配写电路

  • 专利标题: Impedance-matched write circuit with shunted matching resistor
  • 专利标题(中): 具有分流匹配电阻的阻抗匹配写电路
  • 申请号: US10776701
    申请日: 2004-02-11
  • 公开(公告)号: US20050174668A1
    公开(公告)日: 2005-08-11
  • 发明人: Hao FangCameron Rabe
  • 申请人: Hao FangCameron Rabe
  • 主分类号: G11B5/00
  • IPC分类号: G11B5/00 G11B5/012 G11B5/09
Impedance-matched write circuit with shunted matching resistor
摘要:
An impedance matched write circuit is provided that shunts one or more matching resistors. The impedance matched write circuit includes an interconnect for connecting to a write head and at least one resistor between a control voltage and the interconnect for impedance matching to the interconnect. A transistor can be connected across the resistor to shunt current that would otherwise pass through the resistor during an overshoot mode. The transistor may be a PMOS transistor or a combination of PMOS and NMOS transistors. A gate voltage of the transistor is controlled by a source such that the transistor is turned on in an overshoot mode and turned off during a steady state mode.
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