Wireless Power Transfer Bypassing External Device Battery State
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Solution Overview
Problem
Wireless power transfer efficiency and charging speed vary when an external device lacks a battery or has low remaining battery power, as existing systems do not dynamically adjust power transmission based on the battery states of both the electronic device and the external device.
Innovation Solution
An electronic device with a processor, memory, and wireless power transmission/reception module that communicates with an external device to adjust power transmission based on battery state information, bypassing the external device when necessary, and controlling the power transmission duty ratio to optimize power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the electronic device transmits power to an external device using a wireless power transfer method, then the external device can receive power, but the charging efficiency varies when the external device lacks a battery or has low remaining battery power
Solution Approach 1:
The patent implements dynamic adjustment of power transmission by switching between two operational modes: direct power reception mode (bypassing the external device) and power transfer mode (through the external device). The system dynamically selects the optimal mode based on real-time battery state monitoring, ensuring maximum charging efficiency and speed while minimizing energy loss regardless of the external device's battery condition
Solution Approach 2:
The system changes the power transmission parameter (transmission path) based on the battery state parameter. When the external device's battery state is below a threshold or absent, the system changes from power transfer mode to direct power reception mode, altering the physical path of power transmission to optimize charging performance
2Productivity
If the electronic device communicates with the external device to determine power transmission, then power can be optimized based on battery state, but the system complexity increases
Solution Approach 1:
The communication module serves multiple functions: it identifies the external device, exchanges battery state information, controls power transmission mode switching, and monitors charging progress. This multi-functionality reduces the need for separate dedicated components for each function, thereby managing system complexity while achieving optimized power transmission based on battery state
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
Improves wireless power transmission efficiency and charging speed by dynamically adjusting power transfer according to the battery states of both devices, ensuring efficient charging even when an external device is battery-depleted.
Implementation Method 1
receive power provided from the wireless charger device through the wireless power transmission/reception module by bypassing the external device
Data Source
AI summary
An electronic device may receive wireless power from a wireless charger device by bypassing an external device in which a coil is isolated. The electronic device may directly supply power received from the external device to an element for executing an operation, without passing through a battery, according to a battery state, or wirelessly share its own power with the external device.