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Design method for inhabiting hard disk surge current by chip soft starting

A technology of inrush current and design method, applied in computing, data processing power supply, electrical digital data processing and other directions, can solve the problems of reduced service life of hard disk, hard disk damage, etc., and achieve the effect of reducing instantaneous high current

Inactive Publication Date: 2015-05-06
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the node is turned on, because the signal PSON controlling the load switch directly drives the load switch tube without processing, the switch tube is quickly opened, so that the P12V_HDD and P5V_HDD powered by the hard disk will generate a large surge current at the moment of power-on, and the instantaneous large current will cause The service life of the hard disk is reduced, and even the hard disk is damaged

Method used

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  • Design method for inhabiting hard disk surge current by chip soft starting
  • Design method for inhabiting hard disk surge current by chip soft starting
  • Design method for inhabiting hard disk surge current by chip soft starting

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Embodiment Construction

[0018] Below according to accompanying drawing of description, in conjunction with specific embodiment, the present invention is further described:

[0019] A design method that uses chip soft start to suppress the inrush current of the hard disk. First, the circuit of the hot-swappable chip is controlled to work through the power-on signal, and then the soft-start function of the hot-swap chip is used to make the chip generate a driving signal to slowly open the power supply link. On the load switch tube, thereby reducing the surge current generated during the opening process of the load switch tube, and protecting the hard disk device.

[0020] When the hot-swap line is powered on, the hot-swap chip is enabled by the ENABLE signal, the hot-swap chip starts to work, and performs a soft start action; at the same time, the hot-swap chip outputs a driving signal, which slowly climbs from a low level To a high level, control the load switch to open slowly.

[0021] Such as Fig...

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Abstract

The invention discloses a design method for inhabiting hard disk surge current by chip soft starting. According to the method, firstly, a circuit of a hot plug chip is controlled to work through booting signals, and then, the soft starting function of the hot plug chip is used so that the chip generates signals for slowly switching on a load switching tube arranged on a power supply link. The design method has the advantages that a hot plug circuit after the soft starting regulation can output driving signals, and the load switching tube can be controlled to be slowly switched on, so that the instantaneous heavy current during the conduction of the load switching tube is reduced.

Description

technical field [0001] The invention relates to the field of cloud server power supply, in particular to a design method for suppressing hard disk surge current by using chip soft start. Background technique [0002] With the rapid development of the Internet and the continuous rise of cloud computing technology, the online business volume continues to increase. Higher requirements are put forward for the data processing capability and storage capacity of the server in the computer room. The general large-scale data center computer room costs every inch of land. Whether it is a rented computer room or a self-built computer room, the rent and cost are very expensive. In order to save floor space and make full use of space, RACK cabinet products for high-density deployment came into being. Such products generally have three characteristics: centralized power supply, centralized heat dissipation, and centralized management. In order to improve the data processing capability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/26
CPCG06F1/266
Inventor 罗嗣恒
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD