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Power supply system and its control method

A power supply system and electric control technology, which is applied to battery circuit devices, current collectors, electric vehicles, etc., to achieve the effect of low cost and simple structure

Active Publication Date: 2007-10-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a power supply system and its power-off control method to solve the problem in the prior art that the communication equipment cannot immediately and completely cut off the power supply in an emergency due to the backup power supply

Method used

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  • Power supply system and its control method
  • Power supply system and its control method
  • Power supply system and its control method

Examples

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Embodiment Construction

[0022] Referring to Fig. 2, the power supply system of the present invention adds a first control switch at the AC power input end of the power supply system, adds a second control switch in the backup power circuit, and increases the lower control switch for controlling the first control switch and the second control switch. Electrical switch. When the power-off switch is activated to power off the power supply system in a short time, the power-off switch acts to control the first control switch to cut off the external input power, and control the second control switch to cut off the backup power supply.

[0023] Referring to Fig. 3, the power system includes a power module AC / DC, a power system monitoring board connected to the power module, and a backup power connected to the output terminal of the power module. The first control switch SW1 is a distribution circuit breaker with a shunt release, and the second control switch SW3 is a DC contactor. The power-down switch SW2...

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PUM

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Abstract

This invention discloses a power supply system which contains power source module, backup power source connected with power source module, first control switch for controlling on / off of input power source, second control switch for controlling on / off of backup power source and off switch for controlling first and second control switch. Said invention also discloses off control method for power supply system.

Description

technical field [0001] The invention relates to power supply technology in the field of electronics and electricity, and specifically refers to a power supply system and a power-off control method thereof. Background technique [0002] In order to ensure the stability and continuity of the communication equipment, the power supply equipment is generally equipped with a backup power supply. Referring to Figure 1, the power supply system is normally supplied to the load by the AC / DC output power of the power module. When the power module is powered off, it is powered by the battery. [0003] Although equipped with a battery in the power supply system can achieve the purpose of making the equipment work normally for a period of time when the external power is cut off, when a major failure or emergency occurs in the communication equipment, especially when it involves important data storage, due to the backup power supply However, the power supply system cannot be cut off imme...

Claims

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Application Information

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IPC IPC(8): H02J9/06H02J7/02
Inventor 吴琦潘雪峰蒋天利秦真
Owner HUAWEI TECH CO LTD