Wireless Charging Transmitter Using Sensor-Driven Antenna Array
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Solution Overview
Problem
Conventional wireless charging methods require specific device orientation and placement, limiting portability and efficiency in charging electronic devices.
Innovation Solution
A wireless charging proximity transmitter that generates and transmits various types of waveforms, such as radio-frequency and ultrasound waves, to create pockets of energy for efficient charging without the need for precise device alignment, using an array of antennas and a controller to adjust wave convergence based on device proximity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional inductive charging pad is used, then wireless charging is enabled, but device must be placed in specific orientation and location for proper charging
Solution Approach 1:
The patent employs multiple antennas that can dynamically adjust their transmission characteristics based on device position and orientation. The system continuously monitors receiver location and adjusts the phase and amplitude of each antenna element to maintain optimal charging conditions regardless of device placement, transforming a static charging field into a dynamic, adaptive system.
Solution Approach 2:
The patent creates a universal charging solution that works with various device orientations and positions by using an array of antennas that can be selectively activated. The system can charge devices whether they are placed flat, at angles, or at different locations on the charging surface, making the charging pad universally compatible with diverse placement scenarios.
2Productivity
If sensor data is used to adjust power wave transmission, then charging efficiency is improved, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where sensors detect device position, orientation, and charging status, then this information is fed back to the controller which adjusts the antenna transmission parameters accordingly. This closed-loop system continuously optimizes charging efficiency by adapting to real-time conditions while managing complexity through automated control algorithms.
Solution Approach 2:
The patent replaces manual adjustment mechanisms with automated sensor-based control systems. Instead of requiring users to physically position devices correctly, the system uses electronic sensors and software algorithms to automatically detect and adapt to device placement, substituting mechanical positioning requirements with intelligent electronic control.
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 wireless charging of electronic devices without the need for specific orientation, providing efficient energy transfer and increased portability by forming pockets of energy at the device location, allowing for charging in a broader area around the transmitter.
Implementation Method 1
The wireless charging transmitter may be used for providing energy to a receiver that is proximately located to the transmitter... an array of one or more antennas... configured to transmit one or more power waves
Implementation Method 2
The wireless charging proximity transmitter comprises an array of one or more antennas and configured to transmit one or more power waves... such as radio-frequency waves and ultrasound waves
Data Source
AI summary
Disclosed herein are examples of wireless charging transmitters and methods. As one example, a wireless charging transmitter includes a sensor to detect the presence of a receiver device and/or a living being and the sensor generates data according to the presence detected. The wireless charging transmitter also includes an array of antennas configured to transmit power waves to the receiver device and a surface layer that is adjacent to the array of antennas. The transmitted power waves converge to form a constructive interference pattern at a non-zero distance from the surface layer. The non-zero distance being based on the sensor data. Further, the phases and amplitudes of the transmitted power waves are determined based, at least in part, on the sensor data.