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Method for solving problem of multiple VR output current flow-backwards

An output current and output voltage technology, applied in the field of solving multi-channel VR output current inversion, can solve the problem of no power supply output of VR line, and achieve the effect of preventing VR current inversion, strong practicability and improving service life

Inactive Publication Date: 2015-11-11
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the output voltage of VR1 is low to the voltage critical value, I1 will become very small, causing the entire VR circuit to trigger over-current protection when it is powered on, so that the entire VR circuit has no power supply output

Method used

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  • Method for solving problem of multiple VR output current flow-backwards
  • Method for solving problem of multiple VR output current flow-backwards

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Now provide a method to solve the current backflow of multi-channel VR output, by using multiple VR power supply to realize high-current power supply output; on the power supply path of each group of VR, add an isolation diode to improve the service life of each group of VR .

[0025] as attached figure 2 As shown, the specific implementation process is: design multiple reference voltage VR links, connect the multiple VR links in parallel, each VR link is connected in series with an inductor and a diode, and the input terminal of the inductor is connected to the voltage input The output terminal and the output terminal are connected to the input terminal of the diode, and the output terminal of the diode is connected to the voltage output terminal. When one of the output voltages is too high, after isolation by the diode, the multiple ...

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Abstract

The invention discloses a method for solving the problem of multiple VR output current flow-backwards. Multiple paths of VR (voltage reference) links are designed; the multiple paths of VR links are connected in parallel; each path of VR link is connected in series with an inductance and a diode; the input end of each inductance is connected to the voltage input end, the output end of the inductance is connected to the input end of the corresponding diode and the output end of the diode is connected to the voltage output end; when an output voltage of one path is high, multiple paths of output voltages are adjusted to be the same by diode isolation, so that current flow-backwards is prevented. Compared to the prior art, by adopting a multiple VR power supply structure, the method for solving the problem of multiple VR output current flow-backwards can realize the effects of reducing the size of the output inductance of VRs and solving the problem of limitation of a power board to the size of a case under the condition of meeting the high-current power supply demand, can avoid causing the problem of current flow-backwards between different paths of VR output ends due to difference of actual output voltages of VRs and has high practicality.

Description

technical field [0001] The invention relates to the technical field of server power supply, in particular to a method with strong practicability and solving the backflow of multiple VR output currents. Background technique [0002] With the development of cloud computing and big data, many fields have begun to migrate traditional business to the cloud. With the increase of business volume, the amount of data storage and processing in the server system is also increasing. The number of hard disks in the system has also increased. Usually, the hard disk needs to provide 5V power supply to ensure its normal operation. The more the number of hard disks, the greater the current demand for the 5V power supply. However, due to the current power supply board that supplies power to the hard disk, it is limited by the chassis structure of the server, and there is not enough space to place large-size inductors (for example: the larger the current supported by the inductor, the higher ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/26G06F1/30
Inventor 罗嗣恒
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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