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Invention Application
US20120002800A1 Subscriber Line Interface Circuit with DC-DC Converter Current Protection 审中-公开
具有DC-DC转换器电流保护的用户线路接口电路

  • Patent Title: Subscriber Line Interface Circuit with DC-DC Converter Current Protection
  • Patent Title (中): 具有DC-DC转换器电流保护的用户线路接口电路
  • Application No.: US12828226
    Application Date: 2010-06-30
  • Publication No.: US20120002800A1
    Publication Date: 2012-01-05
  • Inventor: Sean A. Lofthouse
  • Applicant: Sean A. Lofthouse
  • Main IPC: H04M1/78
  • IPC: H04M1/78
Subscriber Line Interface Circuit with DC-DC Converter Current Protection
Abstract:
A method of controlling a switching regulator includes setting a current limit (ILIM) to a first value, ILIM1. An error voltage (VERR) is computed as a difference between an output voltage VOUT of the switching regulator and a reference voltage VREF of the switching regulator. The switching regulator current limit is set to a second value ILIM2, if the error voltage is greater than a first threshold voltage, VTH1. The switching regulator current limit is set to the first value, if the error voltage does not exceed a second threshold value, VTH2.
Abstract(Chinese):

控制开关调节器的方法包括将电流限制（ILIM）设置为第一值ILIM1。 误差电压（VERR）被计算为开关调节器的输出电压VOUT与开关调节器的参考电压VREF之间的差。 如果误差电压大于第一阈值电压VTH1，则开关调节器电流限制被设置为第二值ILIM2。 如果误差电压不超过第二阈值VTH2，则开关稳压器电流限制被设置为第一值。

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