Adaptive USB Charging Current Control Without Power Negotiation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional chargeable electronic devices, lacking the ability to negotiate charging parameters, are often charged at lower than capable levels, leading to inefficient charging times and potential battery damage due to insufficient power supply.
Innovation Solution
A method and system that allows chargeable electronic devices to autonomously adjust charging current and voltage levels without power negotiation by using sensors and controllers to detect and stabilize within safe operating ranges, enabling efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional chargeable electronic devices use fixed hardware signals to determine charging parameters, then compatibility with a wide range of power sources is improved, but charging efficiency deteriorates due to lower than capable charging parameters
Solution Approach 1:
The patent implements dynamic charging parameter adjustment by allowing the chargeable electronic device to autonomously modify charging current and voltage levels during the charging process. The device transitions from static fixed-parameter charging to dynamic adaptive charging, where parameters are continuously adjusted based on real-time detection of device state and power source capabilities, thereby improving charging efficiency while maintaining compatibility.
Solution Approach 2:
The patent changes the physical parameters of charging (current and voltage levels) based on detected device needs and power source characteristics. By modifying these electrical parameters dynamically rather than relying on fixed hardware signals, the system achieves both compatibility across different power sources and optimized charging efficiency for each specific device-state combination.
2Productivity
If chargeable electronic devices autonomously adjust charging parameters without power negotiation, then charging speed is improved, but risk of exceeding safe operating parameters increases
Solution Approach 1:
The patent implements a feedback mechanism where the chargeable electronic device continuously detects its own charging state, battery status, and power source characteristics, then uses this information to autonomously adjust charging parameters. This closed-loop feedback system enables rapid charging speed adjustments while maintaining safety by comparing actual parameters against pre-established safe operating ranges and correcting deviations in real-time.
Solution Approach 2:
The patent enables the chargeable electronic device to self-regulate its charging process without requiring external negotiation or control. The device independently detects its needs, determines appropriate charging parameters, and executes the charging adjustment, thereby achieving both high charging speed and operational safety through self-managed parameter control within safe limits.
3Reliability
If conventional devices charge at lower parameters to ensure safety, then battery damage risk is reduced, but charge time increases significantly
Solution Approach 1:
The patent applies preliminary action by pre-establishing safe operating parameter ranges and safety thresholds before the charging process begins. The device detects and stores acceptable charging parameters, voltage ranges, and current limits in advance, then uses these pre-determined safe parameters as the basis for autonomous charging adjustments, enabling both rapid charging and battery protection without real-time safety calculations.
Solution Approach 2:
The patent transforms static low-parameter charging into dynamic adaptive charging where the charging parameters are continuously adjusted during the process. The system starts with conservative parameters for safety, then dynamically increases charging speed as the device confirms safe operation and battery state, thereby reducing overall charge time while maintaining battery safety through continuous parameter optimization.
Data Source
AI summary
Systems and methods are provided for charging a chargeable electronic device with a USB interface. An example method includes comparing a charging voltage level of a charging device to a charge voltage rage. The method may further include charging a battery with a charging current based on the charging voltage level being within the charging voltage range. The method may further include comparing the charging current to a charge current range, and increasing the charging current based on a determination that it is within the charge current range. The method may involve again comparing the charging voltage level to the charge voltage range and the charging current to the charge current range, and continuing to charge the chargeable electronic device with the charging current based on a determination that the charging voltage level is within the charge voltage range and the charging current is within the charge current range.