PSU Information Buffering to Prevent PMBUS Access Conflicts

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Solution Overview

Problem

In servers with multiple computing device assemblies, simultaneous access to a common power supply unit (PSU) through a power management bus (PMBUS) leads to resource competition, preventing some assemblies from accessing the PSU and affecting normal computing strategies.

Innovation Solution

Implementing a controller to pre-read and store PSU working information at predefined intervals, allowing timely transmission to computing device assemblies upon request, thereby avoiding resource competition and ensuring all assemblies can access the PSU.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple computing device assemblies access the PSU simultaneously through PMBUS, then the computing capability of unit volume is increased, but resource competition occurs causing some assemblies to be unable to access the PSU

Engineering Contradiction:

Improvecomputing capability of unit volumeVSAvoidaccess reliability to PSU

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The controller pre-reads the working information of the PSU at a predefined time interval and stores it locally. This preliminary action allows the controller to respond to search requests from multiple computing device assemblies without requiring them to simultaneously access the PSU, thereby eliminating resource competition while maintaining high computing capability.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If multiple computing device assemblies access the PSU at the same time, then resource utilization is improved, but access conflicts occur affecting normal computing strategies

Engineering Contradiction:

Improveresource utilizationVSAvoidaccess smoothness

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The controller acts as an intermediary between the PSU and multiple computing device assemblies. It reads PSU information in advance and stores it locally, then provides this information to requesting assemblies without requiring direct simultaneous access to the PSU. This intermediary approach maintains high resource utilization while ensuring smooth, conflict-free access for all assemblies.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12541238B2Method of reading information of power supply unit, server, and computer readable storage medium thereof

Publication Date: 2026.02.03 SHENZHEN FULIAN FUGUI PRECISION INDUSTRY CO LTD

AI summary

A method of reading information of a power supply unit (PSU) includes reading working information of the PSU at a predefined time interval. The working information is stored in a predefined storing space. When receiving a searching request sent to PSU from the computing device assembly, the working information is acquired from the predefined storing space and transmitted to the corresponding computing device assembly. The working information of the PSU is pre-read and stored, when several computing device assemblies read the working information of the PSU by the searching request at the same time, there is no issue of competition for resource, and the problem of the computing device assemblies being unable to access the PSU is avoided. Thus, a computing strategy of computing systems corresponding to the computing device assemblies is normally executed. A server and a computer readable storage medium are also disclosed.