Terminal Charging Power Control Under High-Load Heat Limits
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Solution Overview
Problem
Existing charging control methods fail to balance power supply and temperature control in high-load operating states of terminal devices, leading to performance limitations and user experience issues due to rapid heating and CPU frequency limitations.
Innovation Solution
A charging control method that determines a terminal device's system power consumption, determines a required charging power, and adjusts the output parameters to ensure the device is in a high-load operating state, maintaining stable power supply and temperature control by using a temperature-controlled charging current value to optimize charging parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If fast charging is performed using a power bank with higher output current, then charging speed is improved, but the power bank becomes heavier and larger in size
Solution Approach 1:
The charging system is divided into multiple independent coils (first coil and second coil) that can operate separately or together. This segmentation allows the power bank to provide high current through coordinated operation of multiple smaller coils rather than requiring a single large coil, thereby maintaining compact size and low weight while achieving fast charging capability.
2Speed
If fast charging is performed using a power bank with higher output current, then charging speed is improved, but the volume of the power bank increases
Solution Approach 1:
The power bank employs multiple smaller coils instead of a single large coil. These segmented coils can be arranged in a compact configuration, reducing the overall volume required to achieve the same or higher output current through coordinated operation, thus enabling fast charging in a compact form factor.
Solution Approach 2:
The multiple coils are arranged in a nested or overlapping configuration where the first coil and second coil share spatial space. This nesting allows the coils to be positioned closer together, reducing the total volume occupied by the charging components while maintaining the fast charging capability.
3Device complexity
If a single coil is used in the power bank, then the device complexity is reduced, but wireless charging efficiency decreases due to misalignment issues
Solution Approach 1:
The single coil is divided into multiple coils (first coil and second coil) with different spatial orientations or positions. This segmentation provides multiple magnetic field sources that can compensate for misalignment between the power bank and charging device, maintaining high charging efficiency without requiring complex control systems.
Solution Approach 2:
The multiple coils are designed to work together as a unified system that provides both simple operation (like a single coil) and improved performance (multiple field sources). The coil array can adapt to different positioning scenarios, making the system universally effective across various alignment conditions while maintaining relatively simple device architecture.
4Reliability
If multiple coils are arranged in parallel, then wireless charging efficiency is improved through better coverage, but the current imbalance between coils causes instability
Solution Approach 1:
The control circuit continuously monitors the current distribution across multiple coils and dynamically adjusts the driving signals to balance the current flow. This feedback mechanism detects current imbalance in real-time and compensates for it by modulating the power supplied to each coil, thereby stabilizing the overall charging process and preventing instability caused by current unevenness.
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
The method ensures stable power supply and temperature control, enhancing user experience by preventing overheating and maintaining device performance in high-load conditions.
Implementation Method 1
a first coil and a second coil configured to determine whether to start providing power to the electronic device based on a current status of the electronic device
Data Source
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AI summary
Disclosed are a charging control method and apparatus, and an electronic device. The method comprises: obtaining a system power consumption value of a terminal (S1000); determining that the terminal is charged by means of a charger and is in a high-load working state, and determining required charging power of a battery according to a temperature-controlled charging current value of the battery; and determining a charging parameter according to the system power consumption value and the required charging power, the temperature-controlled charging current value being the maximum current value of the battery in the case of charging without heat production (S2000); and determining charging output power of the charger according to the charging parameter, so that the charger charges the terminal according to the charging output power (S3000).