USB Connector Mode Switching via Power Interruption
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Solution Overview
Problem
Conventional computer devices require manual disconnection and reconnection of USB transmission wires to switch between general and quick charging modes, which is inconvenient for users.
Innovation Solution
A computer device with a power management system that automatically switches between quick and general charging modes by controlling the power off time of the USB connector, allowing operation mode changes without manual plugging in and out, and includes a BIOS updating feature with a security access mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual disconnection and reconnection of USB transmission wire is used to switch charging modes, then charging mode switching is achieved, but user convenience deteriorates due to annoying manual operations
Solution Approach 1:
The system performs automatic mode switching without requiring user intervention. The controller automatically detects the connected USB device and switches between general charging mode and quick charging mode based on device identification, eliminating the need for manual plug-unplug operations.
Solution Approach 2:
The patent replaces the mechanical plug-unplug action with an electronic control system. Instead of physically disconnecting and reconnecting the USB cable to switch modes, the system uses electronic detection and control signals to automatically switch between charging modes while the cable remains connected.
2Extent of automation
If USB connector remains connected for mode switching, then charging continuity is maintained, but mode switching capability deteriorates without automatic detection
Solution Approach 1:
The controller continuously monitors the USB connection status and device characteristics through feedback signals. Based on this feedback, the system automatically determines the appropriate charging mode and switches accordingly, maintaining both connectivity and mode switching capability.
Solution Approach 2:
The system dynamically adjusts the charging mode based on real-time detection of the connected USB device. The controller can switch between general charging mode and quick charging mode depending on the identified device type, making the system adaptable to different USB devices without requiring physical reconnection.
3Extent of automation
If power off unit is used for mode switching, then automation is improved, but system complexity increases due to additional control mechanisms
Solution Approach 1:
The existing power off unit is made multi-functional by enabling it to trigger both power-off operations and mode switching operations. This eliminates the need for separate control mechanisms for mode switching, reducing overall system complexity while maintaining automation.
Solution Approach 2:
The patent combines the mode switching function with the existing power off unit. By merging these functions into a single control unit, the system avoids adding separate complex control mechanisms, thereby reducing overall system complexity while achieving automatic mode switching.
Data Source
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AI summary
A computer device and a method for converting a working mode of a universal serial bus (USB) connector of the computer device. The computer device comprises a USB connector, a power interruption unit, a first switch unit, a south bridge chip, a reading unit, a control unit, and a charging control unit. The USB connector is linked to an external USB device. When a fast charging instruction is received, the power interruption unit interrupts the power supply of the USB connector; the first switch unit performs switching, so that the USB connector works in a fast charging mode. When the control unit receives a common charging instruction, the power interruption unit interrupts the power supply of the USB connector; the first switch unit performs switching, so that the USB connector works in a common charging mode, and data transmission can be performed.