Wireless Power Adapter Dynamic Voltage Adjustment
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Solution Overview
Problem
Conventional power source adapters for charging mobile terminals output a constant charging voltage, leading to prolonged charging times due to limited charging current, which is typically below 1.5 A, necessitating frequent recharging of batteries with limited capacity as mobile devices consume more power with increasing functions.
Innovation Solution
A power source adapter with a wireless communication module that dynamically adjusts the charging voltage based on the battery's current voltage, allowing for higher charging currents up to approximately 4 A by exchanging data with the mobile terminal, thereby enabling rapid charging through a direct charging mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional power source adapters output constant charging voltage, then charging interface compatibility is maintained, but charging current is limited to below 1.5 A resulting in prolonged charging time
Solution Approach 1:
The power source adapter dynamically adjusts the charging voltage based on the battery's current voltage state through wireless communication. The controller modifies the AC-to-DC conversion output in real-time, transitioning from constant voltage to variable voltage charging, enabling charging currents up to 4 A and significantly reducing charging time
Solution Approach 2:
The patent changes the charging voltage parameter from a fixed constant value to a dynamically variable value that adapts to the battery's state of charge. By adjusting the voltage parameter in real-time based on battery voltage feedback, the system achieves higher charging currents and faster charging without compromising battery safety
2Productivity
If power source adapter dynamically adjusts charging voltage to increase charging current, then charging speed is improved, but device complexity increases due to wireless communication module and controlling unit
Solution Approach 1:
The patent replaces traditional wired communication protocols (such as USB data lines) with wireless communication technology. The wireless communication module enables data exchange between the power source adapter and mobile terminal without physical contact, simplifying the connection interface while maintaining the ability to negotiate charging parameters dynamically
Solution Approach 2:
The power source adapter is designed with multi-functionality, serving both as a power supply device and a communication device. The wireless communication module enables the adapter to not only provide power but also to exchange data with the mobile terminal, negotiate charging parameters, and adapt to different device requirements, making the system universally applicable
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
Significantly speeds up the charging process by maintaining higher charging currents, reducing the time required to fully charge the battery and improving charging efficiency while maintaining compatibility with existing charging interfaces and hosts.
Implementation Method 1
the AC to DC converting unit is configured to convert an AC input power source into charging voltage required for the mobile terminal
Data Source
AI summary
The application discloses a power source adaptor for charging directly, where the power source adaptor for charging directly is timed to communicate wirelessly with a mobile terminal which is a charging object, to obtain a change in voltage of a battery in the mobile terminal, adjusts dynamically a volt value of charging voltage output by the power source adaptor for charging directly according to the varying voltage of the battery, and charges directly the battery in the mobile terminal using the charging voltage.