Adapter Boost Power Control Using Temperature Feedback
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Solution Overview
Problem
Contemporary consumer electronic devices often face power supply deficiencies during high-load tasks, such as gaming or rapid charging, due to adapters only providing rated power without additional support.
Innovation Solution
An electronic device comprising a host and an adapter, where the host includes a charger circuit, a first controller chip, and a controller. The controller communicates with the adapter's second controller chip to obtain identification codes and power supply information, determining if the adapter meets specific specifications. If it does, the controller establishes a power supply plan based on real-time internal temperature and power supply capability, enabling a boost mode with higher power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the adapter only provides DC power with rated power, then the adapter structure remains simple and reliable, but insufficient power supply occurs during high-load tasks reducing operating performance
Solution Approach 1:
The adapter transitions from a static fixed-power design to a dynamic adjustable-power design. The controller chip dynamically adjusts the DC power output based on real-time temperature monitoring and communication with the host device, allowing the power supply capability to vary according to actual operational needs rather than remaining fixed at rated power.
Solution Approach 2:
A feedback mechanism is implemented where the adapter's controller chip continuously monitors its internal temperature and communicates with the host's controller chip. The host determines whether the adapter meets specific specifications and adjusts the power supply plan accordingly, creating a closed-loop system where power output is continuously optimized based on real-time conditions.
2Power
If the adapter provides additional power beyond rated power, then power supply deficiency during high-load tasks is resolved, but the risk of overheating and safety issues increases
Solution Approach 1:
The system performs preliminary identification and capability assessment before entering boost mode. The host controller chip determines whether the adapter meets specific specifications through communication with the adapter's controller chip, and establishes a power supply plan in advance based on the adapter's power supply capability information and real-time temperature, preventing unsafe operation before it occurs.
Solution Approach 2:
Real-time temperature monitoring creates a continuous feedback loop that prevents overheating. The adapter's controller chip periodically provides internal temperature data to the host, which adjusts the power supply plan accordingly. When the adapter is shifted to boost mode, the system can provide higher instantaneous power while continuously monitoring temperature to prevent unsafe conditions.
Data Source
AI summary
An electronic device and a power supply method thereof are provided. The electronic device includes a host and an adapter. The host includes a charger circuit, a first controller chip and a controller. In a power connection state, the charger circuit receives DC power from the adapter to supply power to a system load within the host. The first controller chip communicates with a second controller chip included in the adapter to obtain an identification code and power supply capability information of the adapter. The controller determines whether the adapter meets a specific specification based on the identification code. When the adapter meets the specific specification, the controller periodically obtains a real-time internal temperature of the adapter from the second controller chip, analyzes it together with the power supply capability information, and establishes a power supply plan suitable for a boost mode.