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A kind of pdb board and working method thereof

A working method and motherboard technology, applied in the direction of data processing power supply, measuring device, measuring flow/mass flow, etc., can solve the problems of poor output voltage stability, current overshoot, etc.

Active Publication Date: 2022-02-18
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a PDB board and its working method to solve the problem that the output voltage stability of the PDB board in the prior art is poor, and it is easy to cause current overshoot during the startup process

Method used

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  • A kind of pdb board and working method thereof
  • A kind of pdb board and working method thereof
  • A kind of pdb board and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] see figure 1 , figure 1 It is a schematic structural diagram of a PDB board provided by the embodiment of the present application. Depend on figure 1 It can be seen that the PDB board in this embodiment mainly includes: a plurality of 48V-12V modules connected in parallel and a delay control module, where the plurality of 48V-12V modules connected in parallel can be recorded as N 48V-12V modules, where N is Natural number and N≥2, that is, one PDB board includes at least two 48V-12V modules. Among them, any 48V-12V module among the N 48V-12V modules is connected to the delay control module through the PMBUS interface, and the input terminal of any 48V-12V module is connected to the PSU to obtain the 48V voltage from the PSU. The output end of any 48V-12V module is connected to the main board, which is used to supply power to the CPU, memory and hard disk on the main board with the converted 12V voltage.

[0053] In this embodiment, the 48V-12V module is used to conv...

Embodiment 2

[0065] exist figure 1 and figure 2 On the basis of the illustrated embodiment see image 3 , image 3 It is a schematic flowchart of a working method of a PDB board provided by the embodiment of the present application. Depend on image 3 As can be seen, the working method of the PDB board in the present embodiment comprises the following steps:

[0066] S1: Get 48V from PSU.

[0067] That is: Multiple 48V-12V modules connected in parallel all get 48V from the PSU.

[0068] S2: Use the delay control module to sequentially configure the delay time in the designated register of any 48V-12V module.

[0069] Wherein, the difference between the delay times of two adjacent 48V-12V modules is equal, and the difference is greater than the power-on time of one 48V-12V module. In this embodiment, the delay times of multiple 48V-12V modules connected in parallel are in an arithmetic sequence relationship.

[0070] Specifically, according to the different configuration methods fo...

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Abstract

The application discloses a PDB board and its working method. The PDB board includes N 48V‑12V modules connected in parallel and a delay control module. Any 48V‑12V module is connected to the delay control module through a PMBUS interface. The input end of a 48V‑12V module is connected to the PSU, and the output end is connected to the motherboard. The delay control module is used to set the delay time in the designated register of the 48V-12V module, and start N parallel-connected 48V-12V modules in sequence according to the delay time. The working method of the PDB board includes: obtaining the 48V voltage from the PSU; using the delay control module to configure the delay time in the designated register of any one of the 48V-12V modules in turn; starting N parallel-connected 48V- 12V module, obtain 12V voltage; send 12V voltage to the main board. Through the present application, time-sharing start can be realized, the phenomenon of current overshoot can be effectively avoided, and the stability of the output voltage of the PDB board can be improved.

Description

technical field [0001] The present application relates to the technical field of power conversion, in particular to a PDB (Power Distribution Board, power distribution board) board and a working method thereof. Background technique [0002] The 48V power supply architecture is more and more widely used in the fields of communication, automotive power supply, data center and AI server. When the 48V power supply architecture is applied in these fields, it is usually necessary to convert the 48V power supply to a 12V power supply. Taking the AI ​​(Artificial Intelligence, artificial intelligence) server field as an example, 8GPU (Graphics Processing Unit, graphics processing unit) or even 16GPU is usually used to build a large-scale artificial intelligence deep learning platform, and the power consumption of GPU accounts for the total power consumption of the server. The ratio reaches 70%. In order to meet the power supply requirements, server platforms equipped with these GPU...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/26G06F1/28
CPCG06F1/26G06F1/28
Inventor 孔祥涛
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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