Power Adapter Warning System for Mobile Computing Devices
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Solution Overview
Problem
Conventional power adapter warning systems for mobile computing devices are inadequate, as users often misuse power adapters, leading to insufficient power, causing devices to fail to boot and resulting in user dissatisfaction due to unclear LED error indications, especially with increasing power requirements and varied device compatibility.
Innovation Solution
An Information Handling System (IHS) with a power adapter warning engine that detects insufficient power, prevents power delivery to peripheral devices, allows booting to display a warning message, and provides a user-friendly power adapter warning message on the display device, enabling users to recognize and address power adapter issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If LED error indication is used to alert users of power adapter issues, then the device can indicate errors, but users do not understand such LED error indications leading to service calls and user dissatisfaction
Solution Approach 1:
The patent replaces the mechanical/optical LED error indication system with an electronic display system that shows text-based power adapter error messages. The display device presents clear, readable information about power adapter issues in plain language that users can understand, eliminating confusion associated with LED blinking patterns.
2Reliability
If power adapter is disabled to prevent insufficient power operation, then device safety is maintained, but battery will not charge and device will not operate when battery power is insufficient
Solution Approach 1:
The patent implements a feedback system where the display device communicates power adapter status and power level information to the user in real-time. This allows users to understand why the power adapter is disabled and what actions to take, providing feedback that maintains system reliability while informing users of operational constraints.
Solution Approach 2:
The display device acts as an intermediary between the power adapter system and the user. It translates complex power management decisions into understandable messages, mediating between the safety requirements of disabling underpowered adapters and the user's need to understand and resolve the issue.
3Adaptability or versatility
If power adapter connector is designed to connect to wider range of mobile computing devices, then adapter compatibility increases, but opportunities for severely underpowered adapter usage increase
Solution Approach 1:
The patent performs preliminary detection and evaluation of power adapter capability before allowing full device operation. The system proactively identifies underpowered adapters through detection mechanisms and displays warning messages before the user encounters operational failures, preventing reliability issues before they occur.
Solution Approach 2:
The system enables users to self-diagnose power adapter compatibility issues through clear display messages. Users can read the error indications, understand the power sufficiency problem, and take appropriate actions such as replacing the adapter, without requiring technical support intervention.
4Ease of operation
If processing system is throttled to allow boot with underpowered adapter, then device can boot to display warning, but severely underpowered adapters still cannot boot to display warning
Solution Approach 1:
The patent applies preliminary anti-action by detecting underpowered adapters before the boot process and preventing power delivery to peripheral devices that would consume excessive power. This proactive measure ensures that even severely underpowered adapters can support the minimal power needed for booting and displaying warnings, preventing complete boot failure.
Solution Approach 2:
The system implements partial power delivery control by selectively preventing power to non-essential peripheral devices while allowing power for critical boot functions. This partial action approach ensures sufficient power reaches the processing system and display device even when the overall adapter power is insufficient, enabling warning display while protecting against complete system failure.
Data Source
AI summary
A power adapter warning system includes a computing device that has a display screen and that is coupled to a power adapter device and at least one peripheral device. The computing device initializes and, in response, detects the power adapter device. The computing device then determines that the power adapter device does not provide sufficient power to complete a boot process and, in response, prevents power from being provided to the peripheral device(s). The computing device then performs the boot process such that the display screen is available for displaying information, and provides a power adapter warning message for display on the display screen. The peripheral device(s) may be connected to the computing device via USB connectors, and power may be disabled to the USB connectors to allow the computing device to perform the boot process using power provided by the power adapter.