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Method and device for suppressing high-energy surge

A surge suppression, high-energy technology, applied in circuit devices, emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc. It is used to absorb high-energy surges, difficult installation and implementation, etc., to avoid grounding operations

Inactive Publication Date: 2013-03-27
黄岩 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a high-energy surge suppression method and device to solve the problem that the installation of gas discharge tubes in the prior art has high requirements for grounding, difficulty in installation and implementation, and the inability of a single varistor to be used for The Problem with Absorbing High Energy Surges

Method used

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  • Method and device for suppressing high-energy surge
  • Method and device for suppressing high-energy surge

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The high-energy surge suppression device provided by Embodiment 1 adopts multiple parallel varistors to absorb surge energy at the same time, so it can be used to suppress high-energy surges; in addition, the varistors are used to absorb surge energy , Exempting the grounding operation, thus avoiding the problem of inconvenient grounding installation of traditional anti-surge equipment used to discharge high-energy surges.

[0029] Such as figure 2 As shown, the difference between the high-energy surge suppression device provided by Embodiment 2 and the high-energy surge suppression device provided by Embodiment 1 is that the first-level protection circuit also includes a first capacitor C connected in parallel with each piezoresistor 1 , the first capacitance C 1 Used to filter out high frequency surge noise.

[0030] Such as image 3 As shown, the difference between the high-energy surge suppression device provided by Embodiment 3 and the high-energy surge suppres...

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Abstract

The invention discloses a method and a device for suppressing high-energy surge. The method is used for absorbing surge energy and includes steps of parallelly connecting multiple piezoresistors between a power source and electronic equipment, wherein the piezoresistors have the same parameters, and the quantity of the piezoresistors is determined according to the ratio of the surge energy to the energy absorbed by the single piezoresistor. The device is connected between the power source and the electronic equipment and comprises a primary protecting circuit, the primary protecting circuit comprises multiple piezoresistors connected in parallel and having the same parameters, and the quantity of the piezoresistors is determined according to the ratio of the surge energy to the energy absorbed by the single piezoresistor. The multiple piezoresistors connected in parallel are used for absorbing high-energy surge, so that the electronic equipment can be protected effectively when high-energy surge invades, and complicated earthing operation required in the mode of utilizing gas discharge tubes is avoided.

Description

technical field [0001] The invention relates to the field of anti-surge technology, in particular to a high-energy surge suppression method and device that do not require complex grounding operations. Background technique [0002] A surge is a brief current or voltage fluctuation that occurs in a circuit and usually lasts about one millionth of a second in a circuit. When a high-energy surge occurs, it is very harmful to electronic equipment. [0003] The protective equipment for high-energy surges in the prior art mainly uses switching elements, such as gas discharge tubes. When the electronic equipment is working normally, the gas discharge tube is in a high-impedance state and is disconnected; when a high-energy surge comes, the gas discharge tube is turned on and discharges the surge current to the ground, thus protecting the electronic equipment from Power surge damage. At present, gas discharge tubes are widely used in outdoor and industrial surge protection, and are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/02H02H9/04H02H9/06
Inventor 黄岩杨超石召
Owner 黄岩
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