Switch control method and apparatus for reserve power supply

A backup power supply and control device technology, applied in the field of circuits, can solve the problems of current fluctuations in the load system, affecting the stability of the load system and the reliability of data, etc.

Active Publication Date: 2015-09-23
HUAWEI TECH CO LTD
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Problems solved by technology

[0004] However, when the backup power supply is powered, if the main power supply is restored, the current of the load system will fluctuate greatly during t

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  • Switch control method and apparatus for reserve power supply
  • Switch control method and apparatus for reserve power supply
  • Switch control method and apparatus for reserve power supply

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[0060] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0061] In electronic equipment such as base stations, considering the problems of scalability and saving maintenance time, a multi-board design is generally adopted, and different boards are responsible for implementing different functions. The electronic equipment is equipped with a unified switching power supply. The switching pow...

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Abstract

An embodiment of the invention provides a switch control method and apparatus for a reserve power supply. The switch control apparatus for the reserve power supply comprises a main power supply loop and a reserve power supply loop; a main power supply and loads are connected respectively through the main power supply loop and the reserve power supply loop; the reserve power supply loop comprises a reserve power supply, a reserve power supply charge-discharge loop, a comparison control circuit and a reserve power supply loop switch; the main power supply charges the reserve power supply through the reserve power supply charge-discharge loop; the comparison control circuit is connected with the reserve power supply; the reserve power supply charge-discharge loop is connected with the loads through the reserve power supply loop switch; the comparison control circuit detects voltage of the reserve power supply; when the voltage of the reserve power supply is higher than a first voltage threshold value, the comparison control circuit controls the reserve power supply loop switch to be switched on; and when the voltage of the reserve power supply is lower than a first voltage threshold value, the comparison control circuit controls the reserve power supply loop switch to be switched off. The switch control method and apparatus for the reserve power supply provided by the embodiment of the invention are used for improving the stability when the reserve power supply is used for supplying power to the loads.

Description

technical field [0001] The embodiments of the present invention relate to the field of circuit technology, and in particular to a backup power switching control method and device. Background technique [0002] In electronic equipment, the main power supply may suddenly lose power, which will cause the loss of data being processed during system operation. Therefore, it is necessary to delay the backup power of the main power supply, so that the backup power supply can continue to supply power to the core system after the main power supply is powered off, so as to ensure that the key information of the system can be stored. [0003] The backup power delay is to set the backup power supply. When the main power supply fails, the backup power supply will supply power to the core system. The power supply time of the backup power supply is the backup power delay time. At present, the single-board backup power supply is generally designed based on supercapacitors. During the operat...

Claims

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Application Information

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IPC IPC(8): H02J9/06
CPCY02B70/30Y04S20/20
Inventor 乔庆肖高涛罗臻
Owner HUAWEI TECH CO LTD
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