Electronic circuit breaker and processing method thereof

A circuit breaker, electronic technology, applied in circuit devices, emergency protection circuit devices, electrical components, etc., to avoid instability and delay

Inactive Publication Date: 2011-08-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides an electronic circuit breaker and its processing method, which realizes reliable delay and overcurrent control and protection through hardware circuits, and solves the problems caused by processing with a microprocessor

Method used

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  • Electronic circuit breaker and processing method thereof
  • Electronic circuit breaker and processing method thereof
  • Electronic circuit breaker and processing method thereof

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Embodiment Construction

[0029] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0030] figure 1 It is a schematic structural diagram of an electronic circuit breaker according to an embodiment of the present invention. The electronic circuit breaker can be connected in series with the load on the circuit to protect the load from overcurrent. See figure 1 This embodiment includes a current sampling unit 11, a curr...

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Abstract

The invention provides an electronic circuit breaker and a processing method thereof. The electronic circuit breaker and the processing method thereof realize delayed start and overcurrent protection functions by hardware circuits like a current sampling unit, a current limiting control unit, a slow start unit, a current comparing unit, a voltage sampling unit, a driving unit, an electronic switch and the like, so that various instability and delay problems caused by using a microprocessor for overcurrent protection can be avoided.

Description

Technical field [0001] The invention relates to electronic switch technology, in particular to an electronic circuit breaker and a processing method thereof. Background technique [0002] When the existing mechanical switch or fuse is connected to the circuit of the power supply and the load, since there is no current limiting effect, the inrush current caused by the equipment is relatively large when it is started, and it takes a long time to start the overload protection when it is overloaded. , Resulting in the busbar voltage may be pulled down, affecting the normal operation of other equipment. [0003] In order to solve the problems caused by the above solution due to the lack of current limiting, the industry has introduced a commonly used current limiting device. The electronic switch technical solution of the current-limiting device includes at least one input and one output, a switch, a current-limiting device and a microprocessor. The microprocessor is connected to the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/08H02H3/10
Inventor 林锦黄显良李万润曾涛余华
Owner HUAWEI TECH CO LTD
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