Wireless Charging Power Adjustment for Human Tissue Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless charging systems lack the ability to dynamically adjust power levels in response to environmental conditions, such as the presence of human tissue, which can lead to inefficient charging and potential exposure to unsafe electromagnetic levels.
Innovation Solution
A wireless charging apparatus equipped with a control module that adjusts the power level of the electromagnetic field based on environmental conditions detected by multiple sensors, including proximity sensors, cameras, and IR sensors, to ensure safe and efficient charging by reducing power when human tissue is present and increasing it when safe to do so.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless charging operates at high power levels to achieve fast charging, then charging speed is improved, but electromagnetic exposure to human tissue increases beyond safe limits
Solution Approach 1:
The system dynamically adjusts the power level of the electromagnetic field based on real-time detection of environmental conditions, particularly the presence and proximity of human tissue. The control module transitions the charging system from static high-power operation to dynamic power adjustment, enabling fast charging when safe and reducing power when human tissue is detected nearby.
Solution Approach 2:
The system implements a feedback mechanism where sensors continuously monitor environmental conditions and feed this information back to the control module. Based on this feedback, the control module adjusts the power level of the electromagnetic field in real-time, creating a closed-loop control system that balances charging speed with safety requirements.
2Device complexity
If wireless charging uses fixed power levels to simplify control, then device complexity is reduced, but charging efficiency decreases due to inability to adapt to environmental conditions
Solution Approach 1:
The wireless charging system performs self-adjustment by automatically detecting environmental conditions and modifying its own power output accordingly. The control module autonomously decides when to increase or decrease power levels based on sensor input, eliminating the need for complex manual control mechanisms while optimizing charging efficiency.
Solution Approach 2:
The control module serves multiple functions: it manages power level adjustment, processes sensor data from multiple sources, determines environmental conditions, and controls the electromagnetic field generation. This multi-functional approach consolidates complexity into a single intelligent controller rather than requiring separate systems for each function.
3Measurement precision
If multiple sensors are used to detect environmental conditions, then detection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple sensors (proximity sensors, cameras, IR sensors) into a unified environmental monitoring system. Rather than treating each sensor as a separate subsystem, the control module integrates their outputs to collectively determine environmental conditions, achieving high detection accuracy while managing system complexity through unified control.
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 enables safe and efficient charging by reducing electromagnetic exposure when human tissue is detected and allowing for turbo charging when it is not present, thereby meeting regulatory standards and optimizing charging performance.
Implementation Method 1
a charging module to radiate an electromagnetic field to wirelessly charge an electronic device in proximity to the wireless charging apparatus
Implementation Method 2
induction chargers, which use an induction coil (sender (Tx) coil) to create an alternating electromagnetic field
Data Source
AI summary
Embodiments of the present disclosure provide techniques and configurations for controlled power level adjustment of a wireless charging apparatus. In one instance, the apparatus may comprise a charging module to radiate an electromagnetic field to wirelessly charge an electronic device in proximity to the wireless charging apparatus; and a control module communicatively coupled with the charging module to adjust a power level of the electromagnetic field, radiated by the charging module, in response to a determination of an environmental condition in relation to the wireless charging apparatus. The control module may be configured to receive information indicative of the environmental condition from multiple sources distributed between the apparatus and the electronic device, and make the determination based at least in part on the received information. The environmental condition may comprise a presence of human tissue in proximity to the wireless charging apparatus. Other embodiments may be described and/or claimed.