A kind of surge protection circuit and surge protection method

A kind of surge protection circuit and surge protection method

  • CN 106,961,098 A
  • Filed: 01/08/2016
  • Published: 07/18/2017
  • Est. Priority Date: 01/08/2016
  • Status: Active Application
First Claim
Patent Images

1. a kind of surge protection circuit, including:

  • First series circuit and at least one second series circuit,Wherein,First series circuit is made up of at least two Transient Voltage Suppressor TVS being serially connected, instituteState a termination positive terminal of the first series circuit, another termination negative terminal;

    Second series circuit is made up of at least one thyristor surge suppressor TSS, second stringOne end on line road is connected between at least two TVS in first series circuit, other end ground connection;

    First series circuit and equipment are in parallel by protection circuit;

    Using first series circuit, there is differential mode surge voltage at the two ends of first series circuitWhen, differential mode surge voltage is absorbed, and by the voltage clamping of rear end associated electronic circuitry to first voltage value;

    Using first series circuit and second series circuit, the two of first series circuitWhen end common mode surge voltage occurs to the earth terminal of second series circuit respectively, common mode surge electricity is absorbedPressure, and the voltage-to-ground of the positive terminal and the negative terminal is reduced to second voltage value.

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