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发明申请
US20090256616A1 HOT SWAP CONTROLLER WITH ZERO LOADED CHARGE PUMP 有权
带有零负荷充气泵的热交换控制器

  • 专利标题： HOT SWAP CONTROLLER WITH ZERO LOADED CHARGE PUMP
  • 专利标题（中）： 带有零负荷充气泵的热交换控制器
  • 申请号： US12132267
    申请日： 2008-06-03
  • 公开(公告)号： US20090256616A1
    公开(公告)日： 2009-10-15
  • 发明人: James Garrett
  • 申请人： James Garrett
  • 主分类号： H03K5/08
  • IPC分类号： H03K5/08
HOT SWAP CONTROLLER WITH ZERO LOADED CHARGE PUMP
摘要：
The present invention includes a pass transistor that limits current drawn from a circuit without using a series resistor and while drawing minimal current from an external supply. A current mirror of the output current is formed and compared to a reference current. When the output current increases, the mirror current increases proportionally, and when a threshold is crossed, the pass transistor is turned off. The pass transistor is biased from a charge pump that provides a voltage, a current from which a current mirror is drawn that controls the pass transistor.
摘要（中）：

本发明包括一个通过晶体管，其限制从电路汲取的电流而不使用串联电阻器，同时从外部电源吸取最小电流。 形成输出电流的电流镜并与参考电流进行比较。 当输出电流增加时，反射镜电流成比例地增加，并且当过零阈值时，传输晶体管截止。 传输晶体管被从提供电压的电荷泵偏置，电压是控制传输晶体管的电流镜被拉出的电流。

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