Wireless Power Handover via Phase-Synchronized Transmitter Switching
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Solution Overview
Problem
Current battery technology often fails to meet the charge capacity and discharge rate demands of mobile electronic devices, and wired charging mechanisms limit device usability and create 'cord clutter' as devices must be connected to a fixed power source for recharging.
Innovation Solution
A wireless power transmission system that facilitates a seamless handover of power from one transmitter to another, minimizing disruptive interference by determining optimal phases for power transfer, ensuring continuous power delivery to the receiver with minimal disruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired charging mechanisms are used to recharge batteries, then power delivery reliability is improved, but device mobility and ease of operation deteriorate due to physical connection requirements and cord clutter
Solution Approach 1:
The patent replaces the mechanical wired charging system with a wireless power transmission system using electromagnetic fields. The wireless power transmission device transmits power wirelessly to the receiver, eliminating the need for physical connectors and cords, thereby maintaining power delivery reliability while significantly improving device mobility and reducing cord clutter
2Stability of the object's composition
If a single transmitter provides continuous power to a receiver, then power delivery stability is improved, but system adaptability deteriorates when the receiver moves or when multiple devices need service
Solution Approach 1:
The patent segments the power transmission function across multiple transmitters that can independently serve a receiver. When the receiver moves or when multiple devices need service, different transmitters can be activated to maintain power delivery stability, thereby improving system adaptability while keeping power delivery stable
Solution Approach 2:
The patent implements dynamic transmitter selection and switching based on receiver position, power needs, and system conditions. The controller dynamically determines which transmitter(s) should provide power, enabling the system to adapt to changing conditions while maintaining stable power delivery to the receiver
3Power
If multiple transmitters operate simultaneously at the same phase to provide power to a receiver, then power delivery capacity is improved, but harmful interference increases due to destructive interference between signals
Solution Approach 1:
The patent employs periodic or alternating operation of multiple transmitters with coordinated phase control. By carefully managing the timing and phase of power transmission from multiple transmitters, the system achieves high power delivery capacity while minimizing destructive interference through controlled periodic action
Solution Approach 2:
The patent changes operational parameters such as phase, frequency, and amplitude of power transmission from multiple transmitters. By adjusting these parameters dynamically, the system optimizes power delivery capacity while minimizing harmful interference effects through constructive and destructive interference management
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 uninterrupted power supply to mobile devices by transitioning power from one transmitter to another without interruption, enhancing device usability and reducing clutter associated with wired charging.
Implementation Method 1
causing a first transmitter to provide electrical power to a receiver via a first wireless resonant coupling link using a first oscillation frequency
Implementation Method 2
provide electrical power to a receiver via a first wireless resonant coupling link
Implementation Method 3
engage in a phase-determination process to determine a first phase at which the first transmitter should provide electrical power to the receiver and a second phase at which the second transmitter should provide electrical power to the receiver
Data Source
AI summary
Described herein are methods and systems for facilitating a wireless power handover. In particular, a controller may cause a first transmitter to provide electrical power to a receiver. The controller may then determine that a handover condition is met and may responsively facilitate a handover to a second transmitter. During this handover, the controller may engage in a phase-determination process to determine first and second phases at which the first and second transmitters should respectively provide electrical power to the receiver. Once determined, the controller may then cause the first and second transmitters to respectively provide electrical power to the receiver at the first and second phases and at substantially the same time. Subsequently, the controller may cause the first transmitter to no longer provide electrical power to the receiver and the second transmitter to continue to provide electrical power to the receiver, thereby completing the handover.