Dual-Mode Wireless Charging Circuit Switching in Mobile Terminals
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Solution Overview
Problem
Existing wireless charging technologies limit devices to either charging or being charged wirelessly, but not both, creating inconvenience for users.
Innovation Solution
Integration of wireless charging transmitting and receiving circuits in a single terminal device, controlled by a detection module that switches between charging and being charged based on the presence of a wired charging source, allowing the device to both charge and be charged wirelessly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless charging is enabled without authentication, then charging convenience is improved, but device security and data protection deteriorate
Solution Approach 1:
The patent implements authentication and device identification procedures before initiating wireless charging. The system performs preliminary checks to verify device legitimacy, user authorization, and compatibility requirements before power transfer begins, ensuring security measures are in place prior to charging operation.
Solution Approach 2:
The patent establishes bidirectional communication between charging devices and power supply devices during the charging process. This feedback mechanism allows real-time monitoring of charging status, device identification verification, and dynamic adjustment of power parameters, ensuring continuous security validation while maintaining charging operation.
2Reliability
If device identification and authentication are performed before charging, then device security is improved, but charging time and system complexity increase
Solution Approach 1:
The patent performs device identification and authentication as preliminary actions before charging initiation. By completing these security verification steps in advance, the system ensures that once charging begins, it proceeds without interruption, minimizing the impact of authentication on overall charging time.
Solution Approach 2:
The patent implements periodic authentication and status verification during the charging process. Rather than continuous verification that would extend charging time, the system performs authentication at specific intervals and critical checkpoints, maintaining security while minimizing time overhead.
3Object-affected harmful factors
If foreign objects are detected during wireless charging, then safety is improved, but charging efficiency and user convenience deteriorate
Solution Approach 1:
The patent utilizes the presence of foreign objects, which would normally be harmful, as a detection opportunity. By implementing foreign object detection (FOD) mechanisms that identify the presence and characteristics of objects on the charging surface, the system can differentiate between legitimate devices requiring charging and foreign objects that should not be charged, converting a safety hazard into a useful detection function.
Solution Approach 2:
The patent introduces communication protocols as an intermediary mechanism between the charging device and the object on the charging surface. Through bidirectional communication, the system can verify device identity, authentication status, and charging parameters, allowing intelligent decisions about whether to proceed with charging based on verified information rather than merely detecting physical presence.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables convenient and efficient wireless charging and discharging between devices, reducing the number of necessary devices and ensuring power availability for both the charging device and the device being charged.
Implementation Method 1
wireless charging technology has emerged as a convenient solution, allowing devices to be charged without physical contact
Data Source
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AI summary
A terminal (700) includes: a coil (101); a wireless charging module (102) including a wireless charging transmitting circuit (1021) and a wireless charging receiving circuit (1022); and a detection module (104) electrically connected to the wireless charging module (102) and a wired charging port (103) of the terminal (700). When detecting that electric energy is input to the wired charging port (103), the detection module (104) sends a first electrical signal to the wireless charging module (102), and the wireless charging module (102) initiates the wireless charging transmitting circuit (1021) based on the first electrical signal; when detecting that no electric energy is input to the wired charging port (103), the detection module (104) sends a second electrical signal to the wireless charging module (102), and the wireless charging module (102) initiates the wireless charging receiving circuit (1022) based on the second electrical signal.