Charging Port Voltage Detection and Path Switching
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Solution Overview
Problem
Electronic devices often fail to receive a large charging current when not coupled to a corresponding adapter, as different adapters provide varying charging currents, leading to inefficient charging.
Innovation Solution
A transmission device with a chip that includes a power transmission path, data transmission path, detection units, and control units to detect voltage levels and adjust charging modes based on the type of charging device, enabling the electronic device to automatically switch between charging modes and optimize current intake.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If an electronic device is not coupled to the corresponding adapter, then the electronic device cannot receive a large current, but using a fixed adapter connection reduces adaptability to different charging devices
Solution Approach 1:
The patent implements dynamic switching between data transmission path and power transmission path based on detected voltage levels. The system transitions from a static connection mode to a dynamic mode where the transmission path function changes according to real-time voltage detection, enabling the device to adaptively receive optimal charging current from different adapter types
Solution Approach 2:
The system changes the operational state of the transmission path by detecting voltage level parameters. When voltage reaches a first predetermined value, the path switches to data transmission mode; when voltage matches a second predetermined condition, it switches to power transmission mode. This parameter-based state change enables compatibility with both data-capable and power-only charging devices
2Power
If the transmission path is continuously on for data transmission, then data communication is maintained, but power transmission efficiency is reduced
Solution Approach 1:
The system performs periodic voltage level detection on the transmission path and switches between data transmission and power transmission modes based on detected conditions. This periodic monitoring and switching enables the system to capture power transmission opportunities while maintaining data transmission capability when appropriate, optimizing both power efficiency and data communication
Solution Approach 2:
The system ensures continuous useful action by maintaining the ability to transmit data when voltage levels indicate data communication is needed, while switching to power transmission when voltage levels indicate charging mode. This continuous adaptive switching ensures the transmission path is always performing its most appropriate function without idle time
Data Source
AI summary
A chip is provided. A power transmission path and a data transmission path are coupled between an upstream port and a downstream port. A first detection unit generates a first trigger signal when a voltage level of the power transmission path reaches a first predetermined value. A first control unit turns on the data transmission path according to the first trigger signal. A second detection unit detects a voltage level of the data transmission path. When the voltage level of the data transmission path matches a pre-determined condition, the second detection unit generates a second trigger signal, and the first control unit turns off the data transmission path according to the second trigger signal. A setting unit sets the voltage level of the data transmission path when the first control unit turns off the data transmission path.