Remote Wireless Charging with Composite Power-Control Signals

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Solution Overview

Problem

Existing remote wireless charging systems have complex hardware structures and high costs due to separate signal transmission paths for power and control signals.

Innovation Solution

A remote wireless charging system that combines power and control signals into a single composite signal, eliminating the need for separate power and communications modules, and using a fundamental frequency-radio frequency conversion unit to transmit this composite signal through a single antenna.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate power and communications modules are used to transmit power signal and control signal independently, then wireless charging and control functions are achieved, but hardware structure becomes complex and costs increase

Engineering Contradiction:
Improvewireless charging and control functionVSAvoidhardware structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the power signal and control signal into a single composite signal that is transmitted through a single antenna. The transmit end integrates the power module and communications module functions into one transmission path, while the receive end separates these functions from the received composite signal. This merging eliminates the need for separate transmit antennas and reduces hardware complexity while maintaining both wireless charging and control capabilities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single composite signal transmission path serves multiple functions: it simultaneously carries both power transfer and control information. The transmit antenna is used universally for both power signal transmission and control signal transmission, reducing the number of components needed while achieving multiple objectives of wireless energy transfer and device control.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If separate power module and communications module are used, then power signal and control signal can be transmitted independently, but transmission path becomes complex and costs increase

Engineering Contradiction:
Improvesignal transmissionVSAvoidsignal transmission path
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the separate transmission paths for power signals and control signals into a single composite signal transmission path. The transmit end combines both signals into one waveform for transmission through a single antenna, and the receive end separates them upon reception. This reduces the transmission path complexity from two independent paths to one integrated path while maintaining signal integrity.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If two independent signal transmission paths are used for power and control, then functions are fully implemented, but hardware structure is complex

Engineering Contradiction:
Improvecharging and control capabilityVSAvoidhardware structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines two independent transmission paths into one by merging power and control signals into a composite signal. The transmit end uses a single antenna and integrated modulation approach, while the receive end uses a single receiving path with separation functionality. This maintains full adaptability for both charging and control while reducing hardware structure complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single transmission path is designed to be universal, handling both power transfer and control communication functions. The composite signal structure allows the same transmission infrastructure to serve multiple purposes, eliminating the need for dedicated separate paths and reducing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Simplifies the internal hardware structure and reduces costs by consolidating signal transmission paths, while maintaining efficient wireless charging and control capabilities.

Implementation Method 1

the fundamental frequency-radio frequency conversion unit is configured to: convert the composite signal into a radio frequency signal

Methodology Applied
Scientific EffectFrequency conversion:

Implementation Method 2

the transmit end antenna is configured to transmit the radio frequency signal corresponding to the composite signal

Methodology Applied
Scientific EffectElectromagnetic radiation:

Implementation Method 3

The receive end receives the radio frequency signal and converts the radio frequency signal into a direct current source, to transfer electric energy

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS12476493B2Remote wireless charging transmit end, receive end, and system
Publication Date: 2025.11.18 HUAWEI DIGITAL POWER TECH CO LTD
  • US12476493B2 patent drawing
  • US12476493B2 patent drawing
  • US12476493B2 patent drawing

AI summary

A remote wireless charging transmit end is configured to wirelessly charge a receive end. The transmit end includes a transmit end processor, a fundamental frequency-radio frequency conversion unit, and a transmit end antenna. The transmit end processor is configured to generate a composite signal based on a control signal and a power signal, and send the composite signal to the fundamental frequency-radio frequency conversion unit. The control signal is used to control a working status of the receive end, and the power signal is used to charge the receive end. The fundamental frequency-radio frequency conversion unit is configured to convert the composite signal into a radio frequency signal, and send the radio frequency signal to the transmit end antenna. The transmit end antenna is configured to transmit the radio frequency signal corresponding to the composite signal.