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System and method for high voltage protection of powered devices

  • US 20070263332A1
  • Filed: 05/11/2006
  • Published: 11/15/2007
  • Est. Priority Date: 05/11/2006
  • Status: Abandoned Application
First Claim
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1. An integrated circuit comprising:

  • a rectifier circuit having two inputs to receive an input power supply and having two outputs to provide a rectified power supply related to the input power supply;

    at least one low-power circuit element coupled between the two outputs; and

    a power protection element coupled between the two output terminals, wherein, in a first mode of operation, the power protection element presents a high impedance to the two output terminals, in a second mode of operation, the power protection element has a first power protection characteristic, and in a third mode of operation, the power protection element has a second power protection characteristic, the power protection element to shut down the at least one low-power circuit element when in the third mode of operation.

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