Multi-Channel Wireless Charging With Independent Antenna Tuning
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Solution Overview
Problem
Conventional wireless charging systems charge multiple devices simultaneously without considering the individual characteristics or status of each device, leading to inefficiencies and potential overcharging.
Innovation Solution
A system with multiple antenna interface channels, each independently tunable for dynamic power delivery, allowing simultaneous charging of multiple devices with varying power levels based on their specific needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single antenna charges multiple devices simultaneously, then device quantity charged is improved, but charging efficiency and adaptability deteriorate due to inability to account for individual device characteristics
Solution Approach 1:
The patent divides the single antenna system into multiple independent antenna interface channels (first channel, second channel, etc.), each capable of independently charging a different device. This segmentation allows simultaneous charging of multiple devices while maintaining individual control over charging parameters for each device, resolving the contradiction between quantity and adaptability.
Solution Approach 2:
The patent implements dynamic impedance tuning for each antenna interface channel independently. The poller transmitter can adjust the impedance of each channel in real-time based on the specific characteristics and charging status of each connected device, enabling adaptive charging that maintains high efficiency while charging multiple devices simultaneously.
2Device complexity
If a single antenna delivers uniform power to all devices, then system simplicity is maintained, but power delivery efficiency deteriorates due to inability to optimize for individual device needs
Solution Approach 1:
The system segments the power delivery path into multiple independent antenna interface channels, each with its own impedance control mechanism. This allows the system to maintain a relatively simple overall structure while enabling efficient, customized power delivery to each device through independent channel optimization.
Solution Approach 2:
The patent applies local quality by allowing each antenna interface channel to have different impedance settings optimized for its specific connected device. Instead of uniform power delivery, each channel can be tuned to match the electrical characteristics of its target device, maximizing charging efficiency for each individual connection.
3Productivity
If impedance is tuned for one device, then charging efficiency for that device is improved, but ability to charge multiple devices simultaneously deteriorates
Solution Approach 1:
The patent resolves this contradiction by segmenting the impedance control into separate, independent channels. Each antenna interface channel has its own impedance tuning capability, allowing the system to optimize charging efficiency for each connected device simultaneously without interference between channels.
Solution Approach 2:
The poller transmitter is designed with multi-functionality to handle multiple devices simultaneously. It can establish separate NFC links, generate distinct charging signals, and independently tune impedance for each antenna interface channel, enabling universal charging capability across multiple devices with different characteristics.
4Ease of operation
If power levels are uniform across all channels, then system control simplicity is maintained, but energy optimization deteriorates due to inability to match individual device power requirements
Solution Approach 1:
The patent implements dynamic power control where the poller transmitter can independently adjust power levels for each antenna interface channel based on the specific needs of each connected device. This dynamic adjustment optimizes energy efficiency by delivering appropriate power levels rather than uniform high power to all devices.
Solution Approach 2:
The system changes power delivery parameters independently for each channel by adjusting impedance settings. This allows the poller transmitter to optimize power transfer efficiency for each device by matching impedance and controlling power levels according to individual device requirements, reducing overall energy waste.
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 efficient, adaptive charging of multiple devices by adjusting impedance and power levels for each device, optimizing battery life and reducing power consumption in the charging system.
Implementation Method 1
a poller transmitter electrically connected to a plurality of antenna interface channels... generate a plurality of charging signals... for wirelessly charging a distinct listener device
Implementation Method 2
each antenna interface channel is configured to be dynamically tuned independently of each other antenna interface channel by adjusting an impedance of the respective antenna interface channel
Data Source
AI summary
Systems, apparatuses, and methods for multiple channel wireless charging power delivery are provided. For example, a poller device may charge multiple listener devices. A poller device may have a separate antenna interface channel and separately poller antenna for each listener device. The poller device may include a poller transmitter that may generate distinct charge signals for each antenna interface channels that may be used to generate an electromagnetic field poller antennas. Each separate poller antenna may generate a distinct electromagnetic field to power the associated listener device. Each antenna interface channel may include one or more automatic antenna tuners that may be used to dynamically and separately tune each antenna interface channel. The poller device and listener devices may use NFC links to determine which listener devices may be charged as well as the level of charging to provide.