USB Charging Apparatus With Dynamic Port Specification Switching
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Solution Overview
Problem
Multi-port chargers in the market are limited to fixed USB interface specifications, unable to adjust output for different power protocols, leading to inconvenience when user demands change or when charging devices with varying power requirements.
Innovation Solution
The design incorporates power processing modules with two USB charging ports of different specifications (e.g., Type-A and Type-C) arranged closely together, with a physical mechanism and circuit protection to allow selection based on user needs, using a single charging circuit to adapt power output accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multi-port charger is equipped with fixed specification interfaces (e.g., all Type-A or limited Type-A and Type-C), then the device complexity is reduced and manufacturing cost is lowered, but the adaptability to different user demands and device specifications is limited
Solution Approach 1:
The patent combines two different USB interface types (Type-A and Type-C) into a single charging port location, allowing the same physical port to support multiple specifications through a switching mechanism. This merging approach enables the charger to adapt to different device requirements without requiring separate dedicated ports for each interface type, thus improving versatility while controlling complexity.
Solution Approach 2:
The patent implements a dynamic switching mechanism that allows the charging port specification to change based on the connected device. The charger can dynamically switch between Type-A and Type-C output specifications, and between different power protocols (PD and non-PD), enabling adaptability to varying user demands without requiring a fixed, over-engineered structure.
2Reliability
If separate power protocol chips are used for each USB interface type, then the reliability of each interface is ensured, but the device complexity and cost increase significantly
Solution Approach 1:
The patent employs a universal power protocol chip that can handle multiple USB specifications (Type-A and Type-C) and multiple power protocols (PD and non-PD) through a single device. This multi-functional chip eliminates the need for separate dedicated chips for each interface type, reducing overall system complexity while maintaining charging safety through centralized control and monitoring.
Solution Approach 2:
The patent introduces a switching mechanism as an intermediary between the power protocol chip and the USB interfaces. This switch acts as a mediator that directs power flow appropriately based on the connected device type, allowing a single power protocol chip to safely serve multiple interface types without requiring duplicate safety mechanisms for each.
3Ease of operation
If the charger is designed with fixed specification ports, then the ease of manufacture is improved, but the ease of operation for users with varying device needs deteriorates
Solution Approach 1:
The patent implements a dynamic switching mechanism that allows the charging port specification to change based on the connected device. The charger can dynamically switch between Type-A and Type-C output specifications, and between different power protocols (PD and non-PD), enabling adaptability to varying user demands without requiring a fixed, over-engineered structure.
4Adaptability or versatility
If two charging ports of different specifications are arranged closely together, then the adaptability to different devices is improved, but the risk of simultaneous insertion causing overload increases
Solution Approach 1:
The patent introduces a switching mechanism as an intermediary between the power protocol chip and the USB interfaces. This switch acts as a mediator that directs power flow appropriately based on the connected device type, allowing a single power protocol chip to safely serve multiple interface types without requiring duplicate safety mechanisms for each.
Solution Approach 2:
The patent implements a detection and control mechanism that monitors which USB interface is currently in use and provides feedback to the switching mechanism. This feedback system ensures that power is directed only to the active interface, preventing simultaneous power delivery to multiple ports and eliminating the overload risk associated with closely arranged different-specification ports.
Data Source
AI summary
An improved USB charging apparatus includes a main body and a plurality of power processing modules arranged in the main body; each one of the power processing modules having two USB charging ports connected thereto, and the two USB charging ports configured to be a first charging port and a second charging port having specifications different from each other; the first charging port and the second charging port arranged adjacent to each other; each one of the power processing modules further comprising a detection control circuit and a switch circuit, allowing each charging circuit to be provided with the charging ports of two types of specifications, such that user can choose one of the charging ports for use depending upon the actual needs. Accordingly, the improved USB charging apparatus is not limited to certain specifications of charging ports only, thereby increasing the use significantly.