Distributive Fast Charging Power Control Across Multiple USB Ports
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Solution Overview
Problem
Conventional fast charging devices have fixed charging power for each port, lacking flexibility in power distribution, which restricts their adaptability to varying charging needs.
Innovation Solution
A distributive fast charging device with a power input port, communication module, microcontroller, and power conversion module that adjusts output power based on setting instructions from an external device, allowing dynamic power allocation and priority settings through a communication module, such as Bluetooth Low Energy, to each USB port.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If charging power for each port is fixed, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The charging device dynamically adjusts the charging power of each port based on real-time detection of connected devices and user settings. The microcontroller continuously monitors device parameters and modifies power distribution accordingly, transforming a static fixed-power system into a dynamic adaptive system that optimizes charging for each port independently.
Solution Approach 2:
The system changes the power parameters (voltage, current, power) of each charging port based on detected device characteristics and user preferences. The microcontroller adjusts these parameters in real-time to match the specific charging requirements of connected devices, enabling flexible power distribution across multiple ports with different charging standards.
2Productivity
If charging power is increased for fast charging, then charging speed is improved, but safety risks increase
Solution Approach 1:
The charging device incorporates real-time feedback mechanisms that continuously monitor charging parameters, device temperature, and power delivery status. The microcontroller uses this feedback to dynamically adjust power levels, ensuring fast charging operation within safe limits and preventing overheating or excessive power stress on connected devices.
Solution Approach 2:
The system applies partial power increase only to the extent needed for fast charging while maintaining safety margins. Rather than consistently operating at maximum power, the microcontroller delivers elevated power only when device conditions permit, balancing charging speed with thermal and electrical safety constraints.
3Adaptability or versatility
If multiple charging ports are provided, then versatility is improved, but power distribution control becomes more difficult
Solution Approach 1:
The charging device automatically detects connected devices at each port and self-configures power distribution without user intervention. The microcontroller independently identifies device types, charging standards, and power requirements, then autonomously allocates appropriate power levels to each port, eliminating the need for manual power distribution control.
Solution Approach 2:
The system performs preliminary detection and configuration for each connected device before initiating full charging. The microcontroller pre-assesses device compatibility, available power capacity, and optimal charging parameters, then establishes appropriate power distribution across multiple ports in advance of full charging operation.
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 flexible and adaptive power distribution to multiple devices, supporting various charging standards like PD and QC, and provides real-time monitoring and control, enhancing user convenience and device compatibility.
Implementation Method 1
The power conversion module is connected to the power input port and the power output ports, and is configured to be controlled to convert initial power received by the power input port into converted power according to conversion ratios, and transfer the converted power to the power output ports, respectively
Data Source
AI summary
A distributive fast charging device, comprises a power input port, power output ports, a communication module, a power conversion module and a microcontroller. The communication module is configured to receive a setting instruction. The power conversion module is connected to the power input port and the power output ports, and is configured to convert initial power received from the power input module into converted power according to conversion ratios, and transfer the converted power to the power output ports. The microcontroller is connected to the communication module and the power conversion module, and is configured to adjust the conversion ratios according to the setting instruction.