Power Switch for Server PSU Standby Failure Transition
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Solution Overview
Problem
Server systems face interruptions and potential data losses due to failures in standby power supply units (PSUs), which can lead to sudden shutdowns and damage, as existing technologies do not effectively manage the transition to main power in case of PSU failures.
Innovation Solution
A system comprising active components, one or more PSUs, and a power switch connected to both standby and main power outputs, which receives status information to determine if the main power is within a predetermined range and switches the input power from standby to main power in case of PSU failure, ensuring continuous operation by providing basic power to the server system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standby power is used to provide basic power before boot up, then the server system can operate during standby, but when standby power fails the system shuts down suddenly causing data loss
Solution Approach 1:
The power switch is pre-configured with the capability to switch between standby power and main power sources. Status information monitoring is established in advance to detect PSU failures before they cause system shutdown. This preliminary preparation ensures that when a standby power failure occurs, the system can immediately transition to main power without sudden shutdown and data loss.
Solution Approach 2:
The main power source acts as an intermediary backup power source that the power switch can transition to when standby power fails. The power switch itself serves as an intermediary device that manages the transition between power sources, ensuring continuous power supply to critical components and preventing sudden shutdowns that would cause data loss.
2Reliability
If a power switch is added to switch between standby and main power, then system reliability improves during PSU failure, but device complexity increases
Solution Approach 1:
The power switch is designed with multi-functionality to manage both normal power operation and failure contingency. It can operate in standard mode using standby power and automatically switch to backup mode using main power when PSU failure is detected. This universal design consolidates multiple power management functions into a single component, improving reliability without proportionally increasing overall system complexity.
Solution Approach 2:
The power switch incorporates automatic detection of PSU failure through status information monitoring and autonomously decides when to switch between power sources without requiring manual intervention. The system self-manages the power transition process, reducing the need for complex external control mechanisms and minimizing the increase in device complexity while maintaining high reliability.
Data Source
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Figure 2A
AI summary
The present disclosure provides a system and method for providing a basic power to a system in an event that a standby power of power supply units (PSUs) of the system fails. The system comprises a plurality of active components, one or more PSUs, and a power switch. The power switch is connected to a standby power output and a main power output of the PSUs. The power switch can receive status information of the PSUs and determine whether the main power of the PSUs is within a predetermined range. In an event that the standby power of the PSUs fails and the main power of the PSUs is within the predetermined range, the power switch can switch an input power from the standby power to the main power of the PSUs and output a basic power for system use.