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System for for enabling external power supply of server to accord with limited power supply

A limited, server-based technology, applied in the field of server power supplies, can solve problems such as inability to guarantee protection, and achieve the effect of avoiding power cut-off

Active Publication Date: 2020-12-11
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the external interface cannot guarantee the protection of voltage fluctuation alarm or voltage abnormality

Method used

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  • System for for enabling external power supply of server to accord with limited power supply
  • System for for enabling external power supply of server to accord with limited power supply

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Embodiment 1

[0026]Embodiment 1 of the present invention proposes a system in which the external power supply of the server conforms to the limited power supply, including a detection current module and a steady current output module; the detection current module is used to detect the first output of the first current detection resistor The current is compared with the preset current threshold through a comparator, and when the first output current is greater than the preset current threshold, the overcurrent protection chip is activated through the level output of the first overcurrent protection pin of the CPLD; thus, the external output circuit Switch to the overcurrent protection chip and the corresponding power output part of the back end. The steady current output module is used to provide a constant current output with an overcurrent protection chip, and when the current is stable, the second current detection resistor is used to detect the second output current in real time. When th...

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Abstract

The invention provides a system for enabling external power supply of a server to accord with a limited power supply. The system comprises a current detection module and a current stabilization outputmodule, the detection current module is used for comparing the first output current detected by the first current detection resistor with a preset current threshold value through a comparator, and when the first output current is greater than the preset current threshold value, the overcurrent protection chip is started through the level output of the first overcurrent protection pin of the CPLD;therefore, the external output line is switched to the overcurrent protection chip and the power supply output part corresponding to the rear end. And the current stabilization output module is usedfor providing constant current output by adopting the over-current protection chip, detecting second output current in real time by adopting a second current detection resistor when the current is stably output, and controlling the over-current protection chip to be disconnected through a CPLD enable signal when the second output current is smaller than a preset current threshold. By detecting thecurrent and stabilizing the current output, the limited power supply for supplying power to the outside can be ensured to continuously supply power.

Description

technical field [0001] The invention belongs to the technical field of server power supplies, and in particular relates to a system in which external power supply of a server conforms to a limited power supply. Background technique [0002] The fire performance of the equipment depends to a certain extent on the power supply. Whether under normal operating conditions or under single fault conditions, if the output power and output current of the power supply are limited, the fire performance of the equipment is guaranteed to a certain extent. Therefore, Article 4.7.2.1 of GB4943.1-2011 "Information Technology Equipment Safety Part 1: General Requirements" stipulates that in the secondary circuit of the equipment, the components powered by the limit power supply specified in Article 2.5 (restricted power supply) require fire protection Protective shell. The limited power supply is an important reference factor in determining the flammability rating of the enclosure of the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/30
CPCG06F1/30Y02D10/00
Inventor 崔杰鲍乐梅
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD