Terminal Charging Power Control Under High-Load Thermal Limits
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Solution Overview
Problem
High-power charging of terminal devices leads to rapid heat generation due to the superposition of charging and high-load temperature rises, causing CPU frequency limitations and system jamming, which affects user experience and battery health.
Innovation Solution
A charging control method and apparatus that determine a required charging power based on a temperature-controlled charging current value, adjusting the charging output power to maintain stable power supply and temperature control, ensuring the terminal device operates effectively without overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-power charging is applied to terminal devices, then charging speed is improved, but temperature rise and heat generation worsen
Solution Approach 1:
The patent implements dynamic charging power adjustment by continuously monitoring system temperature and power consumption, then adapting the charging power in real-time. When temperature exceeds thresholds or power consumption is high, the system reduces charging power; when conditions are favorable, it increases charging power. This dynamic control resolves the contradiction between fast charging and temperature control.
Solution Approach 2:
The system changes charging parameters (power level, current) based on detected system state. By adjusting the charging power parameter according to temperature and power consumption conditions, the system optimizes the balance between charging speed and thermal management, preventing excessive heat generation while maintaining efficient charging.
2Productivity
If high-load operation is performed during charging, then system performance is improved, but CPU frequency limitation and system jamming worsen
Solution Approach 1:
The patent implements a feedback control mechanism where the system continuously monitors power consumption, temperature, and operational state, then adjusts charging power accordingly. This closed-loop feedback ensures that high-load operations can proceed while maintaining system stability by dynamically reducing charging power when thermal or power thresholds are approached, preventing CPU frequency limitation and system jamming.
3Productivity
If charging power is increased, then charging efficiency is improved, but battery health and safety worsen
Solution Approach 1:
The system dynamically adjusts charging power based on real-time battery state, temperature, and system conditions. Rather than applying constant high power, the charging rate adapts to current conditions, increasing efficiency when safe and reducing power when battery health or temperature concerns arise, thus resolving the contradiction between charging efficiency and battery health.
Data Source
AI summary
Disclosed are a charging control method and apparatus, and an electronic device. The charging control method may include: acquiring a system power consumption value of the terminal device; determining that the terminal device is charged by a charger and is in a high-load operating state, determining a 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, wherein the temperature-controlled charging current value is a maximum current value of the battery under a condition of charging without heating; and determining a charging output power of the charger according to the charging parameter, such that the charger charges the terminal device according to the charging output power.