Distributed Transmitters for Wireless Power Phase Alignment

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Solution Overview

Problem

Existing wireless power transfer technologies face challenges in safety and efficacy, including overheating issues with beamforming systems and high energy density everywhere in magnetic resonant systems, which affect the efficiency and safety of energy delivery.

Innovation Solution

A wireless power transfer system utilizing multiple transmitters surrounding a target device to achieve precise, omnidirectional energy delivery through collaborative alignment of beam phases, creating a high energy density location while maintaining low energy density elsewhere, using electromagnetic or mechanical waves, and incorporating a controller to adjust transmission parameters for phase alignment and power optimization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If beamforming systems are used for wireless power transfer, then power delivery efficiency is improved, but overheating occurs

Engineering Contradiction:

Improvepower delivery efficiencyVSAvoidoverheating

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system divides the wireless power transfer into multiple distributed transmitters rather than using a single beamforming system. Each transmitter operates at lower power levels and transmits waves from different locations, segmenting the energy delivery process to avoid concentration of energy that causes overheating while maintaining overall power delivery efficiency through coordinated transmission.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system creates localized high energy density only at the target device location through phase alignment, while maintaining low energy density in surrounding areas. This spatial differentiation of energy density ensures efficient power transfer to the target without causing overheating in adjacent regions, achieving local quality optimization.

Inventive Principle:

Principle #3Local quality

2Power

If magnetic resonant systems are used for wireless power transfer, then power transfer capability is improved, but high energy density is created everywhere in the system

Engineering Contradiction:

Improvepower transfer capabilityVSAvoidhigh energy density distribution

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

The system replaces the monolithic magnetic resonant approach with multiple distributed transmitters, each contributing a portion of the total power. This segmentation allows the system to achieve high power transfer capability through aggregation of multiple lower-power transmitters while avoiding the creation of high energy density throughout the entire system space.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system concentrates energy density locally only at the target device through phase alignment of waves from distributed transmitters, while maintaining low energy density elsewhere. This creates a localized high energy density region precisely where needed, rather than distributing high energy density throughout the entire system volume.

Inventive Principle:

Principle #3Local quality

3Object-affected harmful factors

If distributed transmitters with phase alignment are used, then safe power transfer is achieved, but system complexity increases

Engineering Contradiction:

ImprovesafetyVSAvoidsystem complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The system employs feedback mechanisms where the target device communicates received power levels back to the distributed transmitters. This feedback enables automatic phase alignment and power optimization, reducing the need for complex manual configuration and control systems while maintaining safety through adaptive adjustment of transmission parameters.

Inventive Principle:

Principle #23Feedback

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 achieves a peak to average energy density ratio of 100:1 or more, ensuring safe and efficient power transfer to the target device while avoiding overheating and maintaining low energy density elsewhere, even with obstacles or moving devices.

Implementation Method 1

collaborative alignment or coherent combining of the beam phases at the target device provides precisely focused energy

Methodology Applied

Scientific EffectPhase alignment:

Implementation Method 2

collaborative alignment or coherent combining of the beam phases at the target device provides precisely focused energy just at the target device

Methodology Applied

Scientific EffectConstructive interference: Interference

Data Source

PatentUS11575459B2Secure communications through distributed phase alignment

Publication Date: 2023.02.07 RUTGERS THE STATE UNIV

AI summary

Various embodiments comprise systems, methods, architectures, mechanisms or apparatus for wireless secret communication with a device.