Wireless Charging System Modulating Current for Data Transmission
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Solution Overview
Problem
Existing wireless charging systems face inefficiencies in data transmission due to physical limitations of electromagnetic waves, leading to slower data transfer compared to cable transmission, which often results in users abandoning wireless charging for data transfer.
Innovation Solution
A wireless charging system that includes a charging device with a first current source and a controller to adjust the current value of a source signal based on transmitted data, using an interacting magnetic field to transmit both charging current and data via a radio frequency method, with a receiving device that converts the signal into an AC current and retrieves the data through a rectifying, stabilizing, and transforming module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electromagnetic waves are used for wireless data transmission during charging, then wireless charging convenience is improved, but data transmission speed deteriorates due to physical limitations
Solution Approach 1:
The patent merges power transmission and data transmission into a single electromagnetic wave channel. The charging device transmits both power signals and data signals through the same magnetic field coupling path, eliminating the need for separate communication hardware and achieving high-speed data transfer alongside wireless charging.
Solution Approach 2:
The electromagnetic wave transmission system is designed to perform multiple functions simultaneously: it transmits both electrical energy for charging and digital data for communication. This multi-functional approach allows the wireless charging system to replace both power adapters and data cables, providing universal convenience without sacrificing data transfer capability.
2Reliability
If traditional wireless charging is used, then charging function is achieved, but data transmission efficiency deteriorates due to time consumption
Solution Approach 1:
The system enables continuous simultaneous transmission of power and data through the magnetic field coupling channel. While power is being transferred wirelessly, data transmission occurs in parallel without interrupting or delaying either function, eliminating the time loss associated with sequential operations.
Solution Approach 2:
The charging device and receiving device establish magnetic field coupling and begin dual-mode transmission (power + data) from the outset of the charging process. No separate data transmission phase is needed, as data exchange is prepared and executed concurrently with power transfer initiation.
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
This system enables efficient wireless data transmission alongside charging, allowing for faster and more reliable data exchange between devices, enhancing the usability of wireless charging technology.
Implementation Method 1
a first coil for receiving the source signal according to electromagnetism and accordingly generating an AC current signal
Data Source
AI summary
The invention discloses a wireless charging system for transmitting data. The wireless charging system includes a charging device for wirelessly transmitting a source signal and adjusting a current corresponding to the source signal according to a transmitted datum, and a receiving device which includes a first coil for receiving the source signal according to the electromagnetic effect and generating a corresponding AC current signal, and an output module for obtaining the transmitted datum according to the AC current signal.