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Method and apparatus for clearing fuses in a single output multiple load configuration

一种保险丝、电力负载的技术，应用在断开此类单输出多负载配置中的故障负载领域

Active Publication Date: 2015-08-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high load currents generated when a load fails can cause the controllable power divider to exceed its preset limits, and the controllable power divider responds by diverting power Turn off all loads connected to the controllable power divider before the fuse clears

Method used

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  • Method and apparatus for clearing fuses in a single output multiple load configuration
  • Method and apparatus for clearing fuses in a single output multiple load configuration
  • Method and apparatus for clearing fuses in a single output multiple load configuration

Examples

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Embodiment Construction

[0045] In the following description of the preferred embodiment of the present invention, like elements will be denoted by like reference numerals.

[0046] figure 1 Shown is control circuit 1 connected to loads numbered 2 to 4. Each load is connected in series with a corresponding fuse 5 to 7 . Loads 2 to 4 are connected to the control circuit 1 in parallel.

[0047] figure 2 Shown is a more detailed control circuit with load according to an embodiment of the present invention, wherein the control circuit according to the first embodiment of the present invention includes a controllable power divider and a fuse clear circuit. figure 2 Loads and their respective fuses are shown as separate units. The control circuit comprises a controllable power divider 8 arranged to provide current to the loads 2 to 4 in normal operation. The controllable power divider 8 is also arranged to provide a first electrical pulse to clear a fuse of a faulty load 2 to 4 connected to the contr...

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PUM

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Abstract

A control circuit and a method for controlling a control circuit are described herein. The control circuit is connected to at least two electrical loads connected in parallel. Electrically fused metal fuses are connected in series with each electrical load. The method includes the steps of: monitoring the total current supplied to the electrical load; and if the total current in the control circuit exceeds a nominal preset current limit in normal operation, providing one of: A first electrical pulse supplied to the electrical load at a current above said nominal preset current limit for a first time period, and a second electrical pulse supplied to the electrical load during a preset second time period, wherein said The current in the second electrical pulse is higher than the current in the first electrical pulse, and wherein the second time period is shorter than the first time period.

Description

technical field [0001] The present invention relates to power distribution architectures in which a semiconductor controllable power divider with a plurality of output channels provides power through one of its plurality of dedicated outputs to a load which itself consists of several individual loads , where each individual load has its own blown fuse. More precisely, the present invention relates to methods and devices for disconnecting a faulted load in such a single output multiple load configuration. Background technique [0002] The background of the invention relates to power distribution architectures in which a semiconductor controllable power divider with multiple output channels can provide power through one of its multiple dedicated outputs to a load which itself is controlled by several Individual loads are constituted, and for protection and safety all said loads are equipped with their own integral electrical fuses, such as the universal closed-blow metal fuse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/02H02H3/087H02H7/12H02H7/30H02H9/02
CPCH02H3/025H02H3/087H02H7/1203H02H7/30H02H9/025H02J4/00
Inventor 科林·瑞森谢尔·伦德奎斯特
Owner HUAWEI TECH CO LTD