Characteristic current generating circuit

A current circuit and current generation technology, applied in circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, emergency protection circuit devices, etc., can solve problems such as poor flexibility, large size, and low safety. Achieve the effect of fast switching speed, high circuit safety, and rapid power-off

Pending Publication Date: 2020-12-29
SHENZHEN FRIENDCOM TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a characteristic current generating circuit for the defects of low safety, large volume and poor flexibility of existing products

Method used

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  • Characteristic current generating circuit
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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the present invention clearer, the various exemplary embodiments to be described below will refer to the accompanying drawings, which constitute a part of the exemplary embodiments, and describe the implementation of the present invention. Various exemplary embodiments that may be employed, and unless otherwise indicated, the same numerals in different drawings indicate the same or similar elements. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. It is to be understood that these are merely examples of apparatuses and methods consistent with aspects of the present disclosure as detailed in the appended claims and that other embodiments may be used, or modifications to, the embodiments set forth herein. structural and functional modifications without departing from the scope and spirit of the present invention....

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Abstract

The invention discloses a characteristic current generating circuit, relates to the technical field of intelligent power grid terminals with a characteristic current topology identification function,solves the technical problems of low safety, large size and poor flexibility of an existing product. The characteristic current generating circuit comprises a surge suppression circuit, an AC-to-DC circuit, a characteristic current circuit and an over-current protection circuit. The characteristic current circuit comprises a first characteristic current circuit and a second characteristic currentcircuit which are connected with each other; the surge suppression circuit is connected with the AC-to-DC circuit, the second characteristic current circuit and the overcurrent protection circuit; theAC-to-DC circuit is connected with the first characteristic current circuit, the second characteristic current circuit and the overcurrent protection circuit; and the overcurrent protection circuit is connected with the first characteristic current circuit and the second characteristic current circuit. The characteristic current generating circuit is high in safety, capable of effectively avoiding power grid faults, high in circuit flexibility, small in equipment size and capable of being well embedded into an equipment terminal.

Description

technical field [0001] The invention relates to the technical field of smart grid terminals with a characteristic current topology identification function, in particular to a characteristic current generating circuit. Background technique [0002] Electric energy is an economical, practical, clean, and easy-to-control and convert energy form, and its application degree is one of the main symbols of a country's economic development level. Electrical fires and personal electric shock casualties occur frequently due to lightning, equipment connection or disconnection, improper use of electrical equipment or leakage of power distribution lines, which pose a great threat to people's lives and property safety. The characteristic current is usually used to monitor the abnormal current in the power grid, and the detected abnormal current is eliminated to ensure the safety of the power grid and ensure that the equipment is not damaged. The existing characteristic current generation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/04H02M7/217H02H9/00H02H9/04H02H3/087
CPCH02H3/085H02H3/087H02H9/005H02H9/04H02H9/045H02M7/04H02M7/217
Inventor 陈春和汪志威卢昌树崔涛
Owner SHENZHEN FRIENDCOM TECH DEV
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