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High-voltage protection circuit, high-voltage protection method and power supply

  • US 20150146459A1
  • Filed: 07/29/2013
  • Published: 05/28/2015
  • Est. Priority Date: 10/31/2012
  • Status: Active Grant
First Claim
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1. A high-voltage protection circuit, comprising a primary relay, a secondary relay, a first resistor, a second resistor, a first capacitor, and a second capacitor, whereinone end of the primary relay is connected to an input port of a live line, the other end of the primary relay is connected to an output port of the live line;

  • one end of the secondary relay is connected to the input port of the live line, the other end of the secondary relay is connected between the first resistor and the second resistor;

    one end of the first capacitor is connected to the output port of the live line, the other end of the first capacitor is connected to a neutral line connected in parallel with the live line;

    the second capacitor is connected in parallel with the primary relay; and

    the second resistor and the first resistor are connected in series between the input port of the live line and the output port of the live line.

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