Wireless Power Reception Circuit Thermal Control
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Solution Overview
Problem
Wireless charging of electronic devices can generate excessive heat, potentially damaging components if not managed properly.
Innovation Solution
An electronic device equipped with a wireless power reception circuit, temperature sensor, and processor that detects temperature and state information to deactivate or activate the charging circuit based on predetermined conditions, thereby controlling heat generation during charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless charging is performed continuously, then charging efficiency is improved, but heat generation increases causing component damage
Solution Approach 1:
The patent implements dynamic control of the wireless power reception circuit by switching between active and inactive states based on real-time temperature monitoring. The processor dynamically adjusts charging operation to maintain temperature within safe ranges, resolving the contradiction between continuous charging efficiency and heat-induced component damage.
Solution Approach 2:
The patent employs a feedback mechanism where the temperature sensor continuously monitors device temperature and provides information to the processor. The processor uses this feedback to determine whether to activate or deactivate the wireless power reception circuit, creating a closed-loop control system that balances charging efficiency with thermal safety.
2Object-affected harmful factors
If wireless power reception circuit is deactivated to reduce heat, then heat generation decreases, but charging efficiency is reduced
Solution Approach 1:
The patent implements periodic charging cycles where the wireless power reception circuit is activated for a first period to charge the battery, then deactivated for a second period to allow cooling. This periodic on-off operation reduces cumulative heat generation while maintaining overall charging functionality, resolving the contradiction between heat reduction and charging efficiency.
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 approach restricts wireless charging when excessive heat is detected, reducing the risk of component damage and optimizing charging efficiency.
Implementation Method 1
wireless charging technology that uses an electromagnetic induction scheme or a magnetic resonance scheme
Implementation Method 2
wireless charging technology that uses an electromagnetic induction scheme or a magnetic resonance scheme
Implementation Method 3
sense the temperature of at least a part of the electronic device using the temperature sensor
Data Source
AI summary
An electronic device according to various embodiments of the present invention comprises a wireless power reception circuit and a processor, wherein the processor can be set so as to receive power transmitted from an external electronic device by using the wireless power reception circuit, detect a state related with the reception during the reception of the power, and disable at least a part of the wireless power reception circuit such that the external electronic device stops the transmission when the state satisfies a designated condition. Other examples are also possible.