USB Receptacle Connector Plug Detection Power Saving
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Solution Overview
Problem
Conventional USB 3.0 receptacle connectors fail to timely detect the insertion of a USB plug connector and provide power under a computer's power-saving mode, which is essential for maintaining power supply to external devices.
Innovation Solution
A standard and sink-type receptacle connector with a plug detecting terminal that activates a controlling circuit on the PCB to provide power to an inserted USB plug connector, ensuring power supply even during power-saving modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the USB receptacle connector is designed to detect plug insertion and provide power under power-saving mode, then the power supply functionality is improved, but the device complexity increases due to the additional plug detecting terminal and controlling circuit integration
Solution Approach 1:
The plug detecting terminal serves multiple functions: it detects plug insertion, activates the controlling circuit, and enables power provision under power-saving mode. This multi-functionality resolves the contradiction by improving power supply reliability without proportionally increasing device complexity.
Solution Approach 2:
The patent combines the plug detecting terminal with the power provision circuitry and controlling circuit integration, merging multiple functions into a unified structure. This integration approach improves power supply functionality while minimizing the increase in device complexity.
2Device complexity
If the conventional USB receptacle connector is used without plug detecting function, then the device complexity is reduced, but the power provision under power-saving mode is lost
Solution Approach 1:
The plug detecting terminal is pre-configured and positioned to immediately detect plug insertion and activate the controlling circuit when a plug is inserted, even during power-saving mode. This preliminary action ensures power provision reliability without requiring complex additional systems.
3Speed
If the plug detecting terminal is integrated with the controlling circuit, then the power activation speed is improved, but the manufacturing complexity increases
Solution Approach 1:
The plug detecting terminal is nested within or integrated with the controlling circuit structure, allowing the detecting function to be embedded within the existing circuit architecture. This nesting approach enables fast power activation while maintaining ease of manufacture by utilizing the existing circuit framework.
Data Source
AI summary
A standard receptacle connector has an insulating housing, multiple first terminals, multiple second terminals, a plug detecting terminal and a shell. The first and second terminals and the plug detecting terminal are mounted on the insulating housing. The shell covers the insulating housing and all of the terminals. The plug detecting terminal is capable of being connected to a controlling circuit incorporated in a PCB on which the standard receptacle connector is mounted and selectively activates the controlling circuit to provide power to an external plug connector that is inserted in and connected to the standard receptacle connector.