Multi-Port USB Power Delivery With Dynamic Voltage Allocation
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Solution Overview
Problem
Existing USB charging systems lack the ability to dynamically adjust output voltages based on the specific needs of multiple connected devices, often resulting in inefficient power distribution and varying charging speeds.
Innovation Solution
A universal serial bus (USB) charging system that includes a power supply with multiple power converters, charging ports, and a controller to communicate and adjust output voltages based on parameters such as current draw, charge levels, and priority of connected devices, using USB Type-C ports and power delivery integrated circuits to optimize power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a USB charging system provides fixed output voltage to multiple ports, then the system structure is simple, but power distribution efficiency is poor and charging speeds vary
Solution Approach 1:
The patent implements dynamic voltage adjustment for each USB charging port based on the charge levels and power needs of connected devices. The controller continuously monitors device parameters and adjusts output voltages in real-time, transforming the static fixed-voltage system into a dynamic adaptive system that optimizes charging speed while managing overall power distribution efficiently
Solution Approach 2:
The system changes the electrical parameter (output voltage) for each charging port independently based on device requirements. By varying voltage levels dynamically according to device charge levels and power demands, the system achieves optimized charging performance without requiring a complete redesign of the power supply architecture
2Loss of energy
If the system dynamically adjusts output voltages for each device, then power distribution efficiency improves, but device complexity increases
Solution Approach 1:
The patent applies local quality by providing customized voltage levels to each individual charging port based on the specific needs of connected devices. Each port receives a tailored power configuration rather than a uniform approach, allowing efficient power distribution to multiple devices with different charging requirements while maintaining a single centralized controller
Solution Approach 2:
The system implements feedback mechanisms where the controller continuously monitors device charge levels, current draw, and power consumption. Based on this real-time feedback, the controller dynamically adjusts output voltages to optimize power distribution efficiency, ensuring energy is allocated effectively to devices that need it most while preventing energy waste
3Productivity
If multiple devices are charged simultaneously with fixed voltage, then ease of operation is high, but charging balance varies among devices
Solution Approach 1:
The system dynamically adjusts voltage levels for each charging port based on real-time device charge levels and power demands. This dynamic adjustment ensures balanced charging across multiple devices simultaneously, with the controller automatically prioritizing devices that need more power while maintaining simple user interaction through automatic detection and allocation
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
The system efficiently allocates power by adjusting output voltages for each device, prioritizing those with lower charge levels and optimizing total power usage, ensuring faster and more balanced charging across multiple devices.
Implementation Method 1
each of the plurality of power converters configured to convert an input voltage to a plurality of different output voltages
Data Source
AI summary
A universal serial bus (USB) charging system includes a power supply including a plurality of power converters and a plurality of power supply outputs electrically coupled to the plurality of power converters, respectively. Each of the plurality of power converters is configured to convert an input voltage to a plurality of output voltages. A plurality of charging ports are electrically connected with the plurality of power supply outputs, respectively. Each of the plurality of charging ports is configured to provide an output voltage selected from the plurality of output voltages to an electronic device. A logic circuit is in electrical communication with the power supply and the plurality of charging ports. The logic circuit is configured to provide direct feedback to the power supply to output a particular output voltage of the plurality of output voltages to the plurality of charging ports.