Wireless Charging Power Supply Switching for Full-Charge Heat Control
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Solution Overview
Problem
Wireless charging technology has limited heat dissipation capabilities, leading to high heat generation in electronic devices, especially when the device is fully charged and still connected to the wireless charger.
Innovation Solution
A power supply method that determines the charging state and current temperature of an electronic device, and supplies power by using both the wireless charging device and the battery when the battery is fully charged and the temperature exceeds a preset threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless charging device is used to charge battery, then charging convenience is improved, but heat generation increases
Solution Approach 1:
The system dynamically switches between wireless charging mode and wired charging mode based on temperature conditions. When temperature exceeds the threshold after full charge, it transitions from wireless to wired charging, making the charging system adaptable to thermal conditions rather than static.
Solution Approach 2:
The system changes the charging parameter by switching charging modes (wireless to wired) based on temperature parameters. This parameter change allows the system to optimize between convenience and heat generation by selecting appropriate charging modes under different thermal conditions.
2Duration of action of stationary object
If wireless charging device remains connected after full charge, then power supply continuity is improved, but heat generation exceeds standard
Solution Approach 1:
The system implements feedback control by continuously monitoring temperature during charging. When the temperature exceeds the preset threshold after full charge, the system receives feedback and automatically switches from wireless to wired charging mode, maintaining power supply while controlling heat generation.
Solution Approach 2:
The system extracts the wireless charging function when temperature conditions are not met, separating it from the charging process and replacing it with wired charging. This extraction allows the system to eliminate the heat generation issue while maintaining power supply continuity.
3Temperature
If battery is used to supply power, then heat generation is reduced, but battery power is consumed
Solution Approach 1:
The system uses periodic action by switching between wireless charging and battery power supply based on temperature conditions. During low-temperature periods, wireless charging is used; during high-temperature periods after full charge, battery power is used, creating a periodic switching pattern that balances heat generation and power consumption.
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 method reduces heat generation in electronic devices by minimizing pathway impedance and conserves battery power, thereby enhancing user experience.
Implementation Method 1
wireless charging device
Implementation Method 2
battery
Data Source
AI summary
A power supply method, applied to an electronic device, that can include determining a charging state related to charging a battery of the electronic device by using a wireless charging device, determining a current temperature of the electronic device, and supplying power to the electronic device by using the wireless charging device and the battery in response to the charging state indicating the battery being fully charged and the current temperature being greater than a preset temperature threshold.