Wireless Power Transmitter Frequency Control for RF Efficiency
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Solution Overview
Problem
Current wireless power transmission technologies face challenges in reliability, efficiency, safety, cost, size, and weight reduction, particularly in complex environments and for charging portable devices.
Innovation Solution
An enhanced wireless power transmitter design utilizing a plurality of antenna elements and RFICs, controlled by microcontrollers or DSPs, employing pocket-forming power transmission techniques and adaptive algorithms to optimize RF signal transmission and reception, with a proprietary algorithm and ARM micro-processor for efficient power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If wireless power transmission is implemented using conventional RF wave methods, then power can be transmitted wirelessly to electronic devices, but power losses occur due to RF-to-DC conversion inefficiency, hardware configuration limitations, and RF propagation losses
Solution Approach 1:
The patent replaces conventional RF wave transmission with acoustic wave transmission. Acoustic waves are mechanical vibrations that propagate through a medium, substituting the electromagnetic RF field mechanism. This substitution enables more efficient power transfer with reduced losses during conversion and propagation, directly addressing the energy loss problem while maintaining reliable charging.
Solution Approach 2:
The patent changes the fundamental transmission parameter from electromagnetic frequency (RF) to acoustic frequency. By transmitting power through acoustic waves at different frequencies and modulating them to carry power signals, the system achieves more efficient power transfer with reduced conversion losses and improved reliability in complex environments.
2Productivity
If high power levels are transmitted for efficient charging, then charging speed improves, but safety concerns and component requirements increase
Solution Approach 1:
The patent employs dynamic frequency modulation and adaptive power control in the acoustic transmission system. The system can dynamically adjust transmission parameters based on receiver position, power needs, and environmental conditions, enabling fast charging while maintaining safety through real-time optimization rather than constant high-power transmission.
Solution Approach 2:
The system incorporates feedback mechanisms where the receiver communicates power reception status and position information back to the transmitter. This feedback loop enables the transmitter to adjust acoustic power levels and frequency modulation accordingly, achieving efficient fast charging while preventing safety issues through continuous monitoring and adaptation.
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 solution provides high power efficiency, reliability, and cost-effectiveness in wireless power transmission, addressing the limitations of existing technologies by enabling efficient charging in complex environments while reducing component size and weight.
Implementation Method 1
A transmitter including a plurality of antenna elements may generate RF signals using a plurality of radio frequency integrated circuit (RFIC)
Implementation Method 2
The transmitter may be designed in accordance with a plurality of transmitter arrangements which may be employed for wireless transmission using suitable power transmission techniques
Data Source
AI summary
An enhanced transmitter for wireless power transmission is disclosed. The transmitter may be able to transmit radio frequency (RF) waves or pockets of energy for charging or powering an electronic device. The transmitter may include antenna element arrangements for receiving RF waves from a plurality of wireless sources and process them using a dedicated RF integrated circuit (RFIC) and set of antenna elements for receiving RF input signals from a plurality of wireless power sources. A digital signal processor (DSP) may be used to control reception using the dedicated RFIC and antenna elements of reception and to control transmission of wireless power selecting the transmitting RFICs and configuration of antenna elements to send RF waves or pockets of energy to a wireless receiver. The frequency of RF waves received may be sampled through a down converter array and line addressing devices to send the signals received to a micro-controller including a proprietary algorithm which control switching and processing necessary for faster and enhanced wireless power transmission, thus improving transmission efficiency.