Wireless Charging Device Modular Power Management
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Solution Overview
Problem
Current wireless charging technology is limited to low power levels and lacks efficient power management, posing compatibility and safety risks when charging higher power portable electronic devices.
Innovation Solution
A wireless charging device with multiple power supply modules, a control unit, and a charge module that adjusts the maximum charge current based on the number of operational power supply modules, ensuring efficient power usage and safety by generating and managing output signals effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If wireless charging technology is used for higher power levels, then charging power is improved, but compatibility and safety risks worsen
Solution Approach 1:
The wireless charging device is divided into multiple independent power supply modules, each capable of operating at safe power levels. By segmenting the total power into modular units, the system can scale power output while maintaining individual module safety and compatibility standards.
Solution Approach 2:
The system dynamically adjusts the number of active power supply modules based on charging requirements. The control unit activates or deactivates modules in real-time, enabling flexible power scaling from low to high power levels while maintaining safety through controlled operation of individual modules.
2Power
If multiple power supply modules are used, then charging power is improved, but device complexity worsens
Solution Approach 1:
Multiple power supply modules share common control and management infrastructure. The control unit centrally manages all modules, and they connect to common circuitry for power distribution and signaling, reducing the complexity that would otherwise result from having completely separate systems for each module.
Solution Approach 2:
Each power supply module is designed with universal functionality and identical interface standards. This allows modules to be interchangeably activated based on power needs without requiring different control logic or connection protocols, simplifying the overall system architecture despite having multiple modules.
3Productivity
If charge current is increased for higher power, then charging speed is improved, but risk of component damage worsens
Solution Approach 1:
The control unit dynamically adjusts the charge current by activating or deactivating power supply modules based on real-time conditions. This enables the system to provide high charging speeds when needed while automatically reducing power when safety thresholds are approached, preventing component damage through adaptive control.
Solution Approach 2:
The system incorporates feedback mechanisms where the control unit monitors the operation of power supply modules and adjusts charge current accordingly. By detecting the number of active modules and their output levels, the system provides feedback-controlled current management that prevents excessive power delivery and potential component damage.
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
Enables efficient power management and safe operation by adjusting charge current according to the number of active power supply modules, preventing damage from sudden power changes and ensuring compatibility with varying power requirements.
Implementation Method 1
Each of the power supply modules includes a transmitter and a receiver. The transmitter generates a working current, and the receiver outputs an induction current
Data Source
AI summary
A wireless charging device includes a plurality of power supply modules, a control unit and a charge module. Each of the power supply modules includes a receiver and a conduction circuit. The receiver outputs an induction current. The conduction circuit is coupled to the receiver and generates an output signal according to the induction current. The control unit is coupled to the power supply modules and generates a control signal according to the induction current outputted by the receivers. The charge module is coupled to the power supply modules and generates a charge current according to the output signal generated from the power supply modules. The control unit adjusts the maximum value of the charge current according to the number of the power supply modules which generate the induction current.