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US5942934A On-chip regulator providing good high frequency rejection and noise filtering from the supply 失效
片上稳压器从电源提供良好的高频抑制和噪声滤波

  • 专利标题： On-chip regulator providing good high frequency rejection and noise filtering from the supply
  • 专利标题（中）： 片上稳压器从电源提供良好的高频抑制和噪声滤波
  • 申请号： US890417
    申请日： 1997-07-09
  • 公开(公告)号： US5942934A
    公开(公告)日： 1999-08-24
  • 发明人: Tuan V. Ngo , John D. Leighton
  • 申请人： Tuan V. Ngo , John D. Leighton
  • 申请人地址： MN Bloomington
  • 专利权人： VTC Inc.
  • 当前专利权人： VTC Inc.
  • 当前专利权人地址： MN Bloomington
  • 主分类号： G05F3/22
  • IPC分类号： G05F3/22 ;  G05F3/26 ;  G05F1/10
On-chip regulator providing good high frequency rejection and noise filtering from the supply
摘要：
A power supply filter has a primary current source coupled to a node carrying a power supply signal. The second end of the primary current source is coupled to an impedance that is further coupled to a low voltage node. A differential amplifier having an inverting input, a non-inverting input, and an output, has its non-inverting input coupled to the junction between the impedance and the primary current source. The output of the differential amplifier carries the filtered power supply signal and is coupled to a capacitance. The capacitance is coupled between the output and a lower voltage. A feedback path is coupled between the output and the inverting input.
摘要（中）：

电源滤波器具有耦合到承载电源信号的节点的初级电流源。 初级电流源的第二端耦合到进一步耦合到低电压节点的阻抗。 具有反相输入，非反相输入和输出的差分放大器具有耦合到阻抗和主电流源之间的结的非反相输入。 差分放大器的输出携带滤波后的电源信号并耦合到电容。 电容耦合在输出和较低的电压之间。 反馈路径耦合在输出和反相输入端之间。

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