Wireless Charging Switch Coordination for Multi-Device Stability
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Solution Overview
Problem
In wireless charging systems, devices with different power specifications interfere with each other, leading to reduced operating and charging stability.
Innovation Solution
A wireless charging system that includes a wireless power supply platform and devices with power receiving circuits and control circuits, where the control circuits communicate to determine a coordinated switching state for the power switches, ensuring output voltage values meet the power specifications of each device, thereby reducing mutual interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wireless power supply platform supplies power to multiple devices with different power specifications simultaneously, then the charging convenience is improved, but the mutual interference between devices increases and operating stability deteriorates
Solution Approach 1:
The patent implements dynamic time-division multiplexing where the power switch transitions between different switching states based on real-time device requirements. The first power switch operates in a first switching state for the first device, then switches to a second switching state for the second device with different power specifications, enabling adaptive power delivery that maintains stability while serving multiple devices
Solution Approach 2:
The system employs periodic switching between different power delivery configurations. The controller alternates between charging the first device and the second device in time-divided periods, with each device receiving dedicated charging intervals. This periodic action prevents mutual interference while maintaining continuous charging operation across multiple devices
2Quantity of substance
If devices with different power specifications are charged simultaneously, then the quantity of devices charged is increased, but the charging stability is reduced
Solution Approach 1:
The patent segments the charging process into distinct time intervals, with each interval dedicated to a specific device. The power switch is divided into multiple switching states, where the first switching state is optimized for the first device's power specifications and the second switching state is optimized for the second device's power specifications. This segmentation eliminates mutual interference while maintaining high charging stability for each device
Solution Approach 2:
The controller pre-determines the optimal switching states and time allocation for each device based on their power specifications before charging begins. By planning the switching sequence in advance and preparing the appropriate switching states, the system ensures stable charging for multiple devices without real-time interference, as each device's charging parameters are established beforehand
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
The system improves the stability of wireless charging by allowing devices to obtain output voltage values that meet their specific power specifications, reducing interference and enhancing charging efficiency.
Implementation Method 1
a wireless power supply platform, which provides a wireless suppling power
Data Source
AI summary
A wireless charging system is provided. The wireless charging system includes a wireless power supply platform, a first device, and a second device. The wireless power supply platform provides a wireless suppling power. The first device includes a first power receiving circuit, a first power switch, and a first control circuit. The second device includes a second power receiving circuit, a second power switch, and a second control circuit. The second control circuit communicates with the first control circuit to determine a coordinated switching state of the first power switch and the second power switch. The coordinated switching state determines a first output voltage value generated by the first power receiving circuit according to the wireless suppling power and a second output voltage value generated by the second power receiving circuit according to the wireless suppling power.