Dynamic Pin Redefinition for Hybrid Power Supply Management
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Solution Overview
Problem
Modern server farms face challenges in efficiently managing power supply systems, including power failures that can lead to data loss or system damage, and there is a need to improve reliability and cost-effectiveness of power supplies.
Innovation Solution
The system dynamically redefines input pins of a management controller in response to plugged-in devices such as power supply units (PSUs), automatic transfer switches (ATS), or battery backup units (BBUs), allowing for monitoring and control of these components to manage power supply and reduce the need for uninterruptible power supplies (UPS) or redundant PSUs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional power supply systems use separate management for PSU, ATS, and BBU components, then system reliability is maintained, but device complexity and management difficulty increase
Solution Approach 1:
The patent combines the management of PSU, ATS, and BBU components into a single integrated management controller. The controller uses a unified pin (e.g., A22) that can be dynamically assigned to different components based on their presence in the system, eliminating the need for separate management circuits for each power supply component and simplifying the overall system architecture.
Solution Approach 2:
The management controller implements a universal pin (A22) that serves multiple functions depending on the configured power supply architecture. The same pin can be assigned to monitor and control PSU status, ATS operation, or BBU charging status, making the controller adaptable to different system configurations without requiring additional dedicated pins for each component type.
2Reliability
If redundant PSUs and UPS systems are deployed to ensure continuous power supply, then power continuity is improved, but system cost and device complexity increase
Solution Approach 1:
The system enables self-service power management where the BBU automatically charges during normal operation and autonomously activates to supply power when AC input fails. The management controller monitors the system state and triggers appropriate power source switching without requiring complex external control systems or redundant UPS infrastructure, allowing the power supply system to manage itself.
Solution Approach 2:
The BBU is pre-charged during normal AC power operation so that it is ready to immediately take over when AC power fails. This preliminary charging action ensures that backup power is available without requiring complex real-time power conversion or switching infrastructure, simplifying the overall system design while maintaining power continuity.
3Reliability
If comprehensive monitoring of all power components is implemented, then system reliability is improved, but ease of operation deteriorates due to increased management complexity
Solution Approach 1:
The management controller uses a universal pin assignment mechanism where the same pin (A22) can be configured to monitor different power components based on system needs. This universal approach allows comprehensive monitoring of PSU, ATS, or BBU status through a single unified interface, simplifying operation while maintaining complete oversight of the power supply system.
Solution Approach 2:
The management controller implements feedback monitoring of power component status through the configurable pin, enabling automatic detection of AC power failures, BBU charging status, and component health. This feedback mechanism provides comprehensive monitoring capability while maintaining ease of operation through automated status tracking and alerting without requiring manual intervention.
Data Source
AI summary
The present disclosure provides a system and method for dynamically defining a specific input pin of a management controller (e.g., a baseboard management controller (BMC)) of a server system in response to a new device being plugged into the server system. The new device comprises one of a power supply unit (PSU), an automatic transfer switch (ATS), or a battery backup unit (BBU) of the server system. In some implementations, the PSU, the ATS, and the BBU are modularized into a plurality of ATS modules, a plurality of PSU modules, and a plurality of BBU modules, respectively. Each of the plurality of ATS modules, the plurality of PSU modules, and the plurality of BBU modules has substantially the same physical size.