One-to-Many Fast Charging Cable with Dynamic Power Path Control
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Solution Overview
Problem
Traditional one-to-two or one-to-three data cables with USB A male headers as input terminals and Micro USB, Lightning USB, or TYPE-C as output terminals are limited in their ability to provide fast charging and are inconvenient for charging high-power devices like laptops and mobile phones, as they often require a USB A female receptacle and fail to support simultaneous fast charging of multiple devices.
Innovation Solution
A one-to-many fast charging system with a charging input interface and multiple output interfaces, featuring a power management module that detects connected devices and adjusts data and power communication paths to provide rated charging information and power output signals, enabling fast charging of multiple devices simultaneously through a charging dock and data cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If traditional one-to-two or one-to-three data cables with USB A male headers are used, then the cable structure is simple and easy to manufacture, but the cable cannot provide fast charging and is inconvenient for charging high-power devices
Solution Approach 1:
The data cable is designed with multiple output interfaces (including TYPE-C and USB A male headers) that can support different charging protocols and power requirements. The cable can function as both a data transmission cable and a charging cable, and can charge multiple devices simultaneously with different interface types, making it universally applicable for various devices including smartphones, tablets, and laptops
Solution Approach 2:
The cable incorporates a power management module that dynamically detects the connected devices and automatically adjusts the power distribution and communication paths. The system can switch between different charging modes (fast charging, normal charging) based on device requirements, and dynamically allocate power resources to meet varying power demands of multiple devices
2Adaptability or versatility
If traditional data cables with USB A female receptacle are used, then the cable structure is simple, but the cable can only be used in scenarios where USB A female receptacle is available and cannot support fast charging
Solution Approach 1:
The cable is equipped with multiple output interfaces including TYPE-C and USB A male headers, enabling it to connect to various charging ports on different devices. The cable can be used with USB A female receptacles, TYPE-C ports, and other interface types, providing adaptability across different charging scenarios while supporting both fast charging and normal charging modes
3Adaptability or versatility
If a data cable with two output interfaces is designed to charge multiple devices, then the charging versatility is improved, but the cable fails to provide fast charging and normal charging simultaneously
Solution Approach 1:
The cable divides its power management functionality into separate modules, with each output interface having its own power management circuitry. This segmentation allows each interface to independently manage power delivery to connected devices, enabling one interface to provide fast charging while another provides normal charging simultaneously without interference between the channels
Solution Approach 2:
The power management module dynamically detects which devices are connected to which interfaces and automatically configures the power distribution. When two devices are connected, the system can assign fast charging to one device and normal charging to another, or allocate power dynamically based on the charging needs of each device, ensuring optimal charging performance for all connected devices
4Power
If the cable is designed to support fast charging of multiple devices, then the charging power is improved, but the data communication path management becomes complex
Solution Approach 1:
The data communication paths are segmented and dedicated to specific output interfaces. Each interface has its own communication channel that is independently managed by the power management module. This segmentation simplifies the management complexity by allowing the system to handle each communication path separately rather than managing a shared complex bus, making it easier to detect devices and negotiate charging parameters for each connected device
Data Source
AI summary
A fast charging system, a one to many fast charging data cable, and a charging management device. The charging data cable comprises a charging input terminal, a plurality of charging output terminals and a charging management device, wherein the charging management device is used for controlling, when a device to be charged is connected at at least one charging output terminal, the turning-on of a data communication channel corresponding to the charging output terminal, which is connected to the device to be charged, so as to acquire rated charging information of the device to be charged; for converting, according to the rated charging information, a power source signal received by the charging input terminal into a power source output signal which matches the rated charging information; and for charging, by means of the power source output signal, the device to be charged, which is connected to the charging output terminal.