Wireless Charging Mode Selection for Mounted External Devices
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Solution Overview
Problem
Existing wireless power transmission systems lack the ability to dynamically adapt charging modes based on the mounting of external devices, leading to inefficiencies and potential compatibility issues.
Innovation Solution
An electronic device equipped with a housing, wireless charging circuit, memory, and processor that identifies the mounting of an external device, selects a preferred charging mode, and communicates with a wireless power transmission device to receive power based on supported modes, enabling dynamic charging mode adaptation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed charging mode is used in wireless power transmission, then the system is simpler to implement, but charging efficiency and compatibility are reduced
Solution Approach 1:
The patent implements dynamic charging mode selection by enabling the electronic device to identify external device mountings and automatically select from multiple charging modes (first charging mode, second charging mode, etc.) based on the detected configuration. This transforms the static, fixed charging mode system into a dynamic one that adapts to different external device scenarios, resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The system changes operational parameters by selecting different charging modes with distinct power transmission characteristics. The processor identifies the external device mounting state and adjusts charging parameters accordingly, allowing the system to optimize power transmission for each specific configuration while maintaining a unified hardware platform.
2Productivity
If multiple charging modes are supported, then charging efficiency and compatibility improve, but communication overhead with power transmission device increases
Solution Approach 1:
The electronic device performs preliminary identification of external device mountings before initiating power reception. By pre-determining the appropriate charging mode based on detected external devices, the system communicates only the selected mode to the power transmission device, reducing communication overhead while maintaining support for multiple charging modes.
Solution Approach 2:
The system implements a feedback mechanism where the electronic device communicates its identified external device mounting state and selected charging mode back to the wireless power transmission device. This feedback loop enables the power transmission device to adjust its output accordingly, achieving high charging efficiency with minimized communication requirements.
3Reliability
If external device mounting is detected, then optimal charging mode can be selected, but additional detection mechanisms are required
Solution Approach 1:
The patent employs the existing wireless charging communication circuit to serve dual functions: both power transmission and external device detection. The same wireless interface used for power negotiation also detects external device mountings and communicates charging mode preferences, eliminating the need for separate detection mechanisms while ensuring reliable charging compatibility.
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
Enhances charging efficiency and compatibility by allowing the electronic device to identify and communicate the supported charging mode, ensuring optimal power reception.
Implementation Method 1
The wireless power transmission technology is a scheme for transmitting power using an electromagnetic field induced in a coil. A wireless power transmission device applies a current to a transmission coil to generate an electromagnetic field, and an induced electromotive force is formed in a reception coil of a wireless power reception device by the generated electromagnetic field, so that power can be transmitted wirelessly.
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing, a wireless charging circuit, memory, comprising one or more storage media, storing instructions, and at least one processor communicatively coupled to the wireless charging circuit and the memory, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to identify a mounting of an external device on the housing, identify a first charging mode, based on the mounting of the external device, identify the first charging mode as a preferred charging mode from among a plurality of charging modes including the first charging mode, receive a first ping signal from a wireless power transmission device via the wireless charging circuit, transmit, to the wireless power transmission device via the wireless charging circuit, information indicating that the first charging mode is supported, based on receiving the first ping signal, and receive first charging power from the wireless power transmission device via the wireless charging circuit based on the first charging mode and based on the wireless power transmission device supporting the first charging mode.