Multi-mode Power Receiving Unit for Wireless Standards
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Solution Overview
Problem
Current wireless communication devices face challenges in efficiently harvesting power from various wireless signals due to the lack of multi-mode power receiving units that can operate across different wireless power standards, leading to suboptimal power transfer and management.
Innovation Solution
A multi-mode power receiving unit is developed, equipped with multiple wireless power receivers and a controllable rectifier circuit that can operate according to various standards such as A4WP, WPC, and PMA, allowing for efficient power transfer and management by selecting the appropriate rectifier configuration based on the received signal and load conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single-mode power receiving unit is used, then the device complexity is reduced, but the adaptability to different wireless power standards deteriorates
Solution Approach 1:
The power receiving unit is designed to support multiple wireless power transfer standards (magnetic resonance at 6.78 MHz, electromagnetic radiation at 2.4 GHz, and near-field communication) within a single device architecture. The unit includes multiple receivers that can be selectively activated based on the detected power standard, enabling universal compatibility without requiring separate dedicated receivers for each standard.
2Adaptability or versatility
If multiple wireless power receivers are included, then the adaptability to different standards is improved, but the device complexity increases
Solution Approach 1:
The rectifier circuit is designed with dynamic reconfigurability, allowing it to change its operational mode based on the detected power standard. The circuit can switch between different rectification configurations (such as half-wave, full-wave, or bridge rectification) and impedance matching networks to optimize power transfer efficiency for each specific standard. This dynamic adaptation is controlled by a processor that detects the power standard and configures the rectifier circuit accordingly, reducing the need for multiple fixed configurations.
3Productivity
If a multi-mode power receiving unit is implemented, then the power transfer efficiency across different standards is improved, but the ease of operation deteriorates
Solution Approach 1:
The power receiving unit incorporates an automatic detection and selection mechanism that identifies the incoming power standard and configures the appropriate receiver and rectifier circuit without user intervention. The processor continuously monitors the characteristics of the incoming power signal and automatically switches between different operational modes, allowing the device to self-optimize for the current power standard. This eliminates the need for manual configuration while maintaining high power transfer efficiency across different standards.
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 enables efficient power harvesting across different wireless power standards, improving power transfer efficiency and management, allowing devices to operate effectively in multiple power scenarios.
Implementation Method 1
a first wireless power receiver and a second wireless power receiver that operate to receive wireless power signals in accordance with several different wireless power standards
Implementation Method 2
A controllable rectifier circuit is configured to rectify the wireless power signal received via the first wireless power receiver or the second wireless power receiver to generate a rectified voltage
Data Source
AI summary
Aspects of the subject disclosure may include, for example, a power receiving unit that includes a first wireless power receiver configured to receive a first wireless power signal in accordance with a first wireless power standard and a second wireless power receiver configured to receive a second wireless power signal in accordance with a second wireless power standard. A controllable rectifier circuit is configured to rectify either the first wireless power signal or the second wireless power signal. The controllable rectifier circuit includes a rectifier circuit configured to generate a rectified voltage from the wireless power signal, based on switch control signals. A rectifier control circuit is configured to determine whether the first wireless power signal or the second wireless power signal is received and to generate the switch control signals, based on whether the first wireless power signal or the second wireless power signal is received.