DRIP Intelligent Power Control for Server Reboot Continuity
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Solution Overview
Problem
Current digital rack interface pods (DRIPs) face challenges in maintaining power availability during server shutdowns, leading to disrupted Ethernet sessions and inability to capture BIOS screen information, especially when relying solely on server USB power, and lack intelligent switching between power sources.
Innovation Solution
The implementation of an intelligent power control subsystem within the DRIP that prioritizes power sources, allowing seamless transition from server USB power to backup power sources, such as an external step-down transformer, to maintain DRIP functionality and capture BIOS screen data during server reboots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the DRIP is powered from the server's USB port to eliminate external transformers and reduce wiring, then device complexity and wiring are reduced, but reliability deteriorates because the DRIP loses power when the server shuts down
Solution Approach 1:
The system dynamically changes the power source parameter by detecting the availability of server USB power and automatically switching to an internal power source when server power is unavailable, maintaining continuous operation without requiring external transformers
Solution Approach 2:
An internal non-transient storage device and power management circuit act as intermediaries between the server USB power and the DRIP operational circuits, storing power in advance and providing seamless transition when server power becomes unavailable
2Ease of manufacture
If the DRIP relies solely on server USB power to maintain operation during server shutdown, then external power infrastructure is eliminated, but the ability to capture BIOS screen information is lost
Solution Approach 1:
The power management circuit performs preliminary action by detecting server shutdown conditions in advance and activating the internal power source before the server USB power is completely lost, ensuring continuous DRIP operation and BIOS screen capture capability throughout the server reboot process
3Reliability
If multiple power sources are provided for the DRIP to ensure continuous operation, then reliability is improved, but device complexity increases
Solution Approach 1:
The power management circuit implements feedback by continuously monitoring the availability of server USB power and automatically adjusting the power source selection, eliminating the need for complex manual power control while ensuring continuous DRIP operation
Solution Approach 2:
The system performs self-service through automatic power source selection and switching, where the power management circuit independently manages the transition between server USB power and internal power source without requiring external intervention or complex control mechanisms
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution ensures continuous DRIP operation and maintains Ethernet sessions by intelligently switching to backup power sources, enabling the capture of BIOS screen information during server reboots, thereby enhancing remote troubleshooting capabilities and reducing infrastructure costs.
Implementation Method 1
A first power source, such as a step-down transformer, may be used to convert high voltage AC power to a lower voltage DC power
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
An intelligent power control system and method adapted for use with a digital rack interface pod (DRIP). A switching regulator generates a set output voltage. If power is available from a USB port of an external device, such as an external server, then the system uses this power to power the DRIP. If DC power is detected as being received on a different input from an external power transformer, then the system may still continue to use the power being received from the USB port to power the DRIP. If power from the USB port of the external device is lost but power from the external transformer is present, then the system may use the power available from the external transformer to power the DRIP. If the DRIP is being powered by USB power from the external device, and no DC power is available from the external transformer, but backup power from an appliance to which the DRIP is coupled is being received on one of the DRIP's power input ports, then the DRIP may switch to backup power from the appliance if power from the USB port of the external device (e.g., server) is lost. The system thus intelligently prioritizes the use of power available from a plurality of different power sources to maintain the DRIP powered on when one or more of the power sources is lost or otherwise not available.