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Power supply overcurrent protection method of high-power server

An overcurrent protection and server technology, which is applied in the server field, can solve problems such as electromagnetic interference, reduce equipment life, and high current impact of equipment, and achieve the effect of enhancing the protection mechanism and fault tolerance

Inactive Publication Date: 2010-06-09
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But in a high-power server, using one of the protection modes alone will cause many problems
If the self-recovery type is adopted, the power supply keeps trying to start, which will cause frequent high-current impacts on the equipment, which will easily reduce the life of the equipment, and will also cause serious electromagnetic interference

Method used

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  • Power supply overcurrent protection method of high-power server
  • Power supply overcurrent protection method of high-power server

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Embodiment Construction

[0009] Below with reference to accompanying drawing, content of the present invention is described its principle with specific example.

[0010] The system structure of the present invention mainly includes: a power supply unit, a current sampling unit, a signal amplification unit, an overcurrent reference comparison unit, an analysis and judgment unit, a self-restoring overcurrent protection unit, and a self-locking overcurrent protection unit, wherein:

[0011] The power supply unit is the high-power server power supply, which provides power for the system;

[0012] The current sampling unit uses current detection elements such as current sensors or current transformers to sample the output current of the power supply unit and perform current-voltage conversion;

[0013] The signal amplification unit amplifies the signal provided by the current sampling unit for easy comparison;

[0014] The overcurrent reference comparison unit compares the signal provided by the signal am...

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PUM

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Abstract

The invention provides a power supply overcurrent protection method of a high-power server. In the high-power server, the output current of the power supply is sampled, a current signal is converted into a voltage signal and amplified, the amplified signal A is compared with a well set overcurrent protection reference signal B, and the comparison result is analyzed and judged. When the lasting time of the signal A is slightly larger than that of the signal B or the part of signal A slightly exceeds that of the signal B, an overcurrent fault is judged to be caused by malfunctions, and an overcurrent protection self-renewing mode is started at the moment; when the lasting time of the signal A is greatly larger than that of the signal B or the part of signal A greatly exceeds that of the signal B, a overcurrent fault is judged to be real, and an overcurrent protection self-locking mode is started at the moment. The invention has the advantages of well realizing the power supply overcurrent protection of the high-power server and enhancing the protection mechanism and the fault-tolerant capability of the system.

Description

technical field [0001] The invention relates to the server field, in particular to the overcurrent protection of a high-power server power supply. Background technique [0002] In a server, the power supply is the core of equipment power supply, and various protection functions need to be designed. Especially in high-power servers, the requirements for power protection functions are more stringent. Overcurrent protection is one of the most important protection circuits of the power supply, which can prevent safety accidents caused by equipment overcurrent faults. [0003] There are two modes of power supply overcurrent protection: one is self-recovery, when an overcurrent fault occurs, the protection circuit operates to turn off the power supply, at this time the power supply detects the current state and keeps trying to restart. After the overcurrent fault is eliminated, the power supply can automatically restart; the other is the self-locking dead type. When the overcurr...

Claims

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Application Information

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IPC IPC(8): H02H3/06H02H3/08
Inventor 吴安
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD