Wireless Power Feedback via NFC for Dynamic Adjustment
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Solution Overview
Problem
Current wireless power delivery systems lack efficient feedback mechanisms to dynamically adjust power levels based on the operating conditions of information handling systems, leading to potential overcharging or undercharging, which can affect device performance and battery life.
Innovation Solution
A wireless power delivery system that includes a wireless charging pad and information handling systems capable of communicating through near field communication (NFC) to exchange power state information, allowing the system to dynamically adjust power levels based on the device's needs, using techniques like inductive power transfer and throttle control modules to manage power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless power delivery systems transmit power without feedback mechanisms, then power can be delivered to devices, but power levels cannot be dynamically adjusted leading to overcharging or undercharging
Solution Approach 1:
The patent implements a feedback mechanism where the information handling system transmits power state information back to the wireless charging pad. This feedback loop enables the charging pad to dynamically adjust power levels based on the device's actual charging needs, preventing both overcharging and undercharging while maintaining reliable power delivery.
2Productivity
If wireless power delivery systems use dynamic power adjustment, then power management efficiency improves, but communication protocols and control mechanisms become more complex
Solution Approach 1:
The system uses feedback from the information handling system to dynamically adjust power levels, enabling efficient power management by matching supply with actual demand.
Solution Approach 2:
The information handling system autonomously communicates its power state and charging needs to the wireless charging pad, allowing the system to self-regulate power delivery without requiring complex external control mechanisms.
3Adaptability or versatility
If wireless charging pads provide power to multiple devices, then system versatility improves, but power distribution management becomes more complex
Solution Approach 1:
The system segments power management by establishing individual feedback loops with each connected information handling system. Each device communicates its specific power needs independently, allowing the charging pad to manage multiple devices through separate, simplified control channels rather than requiring a complex centralized management system.
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
Enables efficient power management by ensuring that information handling systems receive the optimal amount of power, reducing battery wear and extending device operational modes, while also prioritizing power distribution among multiple devices if needed.
Implementation Method 1
using techniques like inductive power transfer
Implementation Method 2
The device can communicate with the pad via near field communication (NFC)
Data Source
AI summary
A wireless power delivery system includes a wireless power source and a control module. The wireless power source provides power to an information handling system. The control module is in communication with the wireless power source, and is configured to detect a presence signal from the information handling system, to set an output power level for the information handling system based on the presence signal, to receive a signal from the information handling system, and to adjust the output power level based on the signal.