MPPT Receiver Boost Converter Segmentation
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Solution Overview
Problem
Wireless power transmission from RF waves is challenged by variability in power extraction due to environmental and interference factors, leading to inefficiencies in charging electronic devices.
Innovation Solution
An MPPT management method is implemented in a receiver system with an intelligent input boost converter and micro-controllers to monitor and adjust voltage levels, maximizing power extraction from RF waves by tracking local and global power maxima.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a receiver extracts power from RF waves in variable environmental conditions, then power extraction is affected by interference and medium characteristics, but implementing MPPT tracking increases device complexity
Solution Approach 1:
The MPPT management system is segmented into a built-in micro-controller within the input boost converter that operates autonomously to detect local power maxima, and a main system micro-controller that handles global optimization. This segmentation allows the power conversion subsystem to independently track local maxima while the main system coordinates overall MPPT strategy, reducing the complexity burden on any single component.
Solution Approach 2:
The built-in micro-controller continuously monitors voltage levels and proactively detects local power maxima before they become critical issues. By performing preliminary detection and adjustment of operating points, the system prevents power extraction instability rather than reacting to it, ensuring reliable power extraction in variable conditions.
2Productivity
If the receiver operates close to maximum power points despite external conditions, then power extraction efficiency is improved, but the system requires continuous monitoring and adjustment increasing operational complexity
Solution Approach 1:
The input boost converter incorporates a built-in micro-controller that autonomously monitors voltage levels and detects local power maxima without requiring continuous manual intervention or complex external control. The system self-adjusts its operating point to maintain maximum power extraction, making the high-efficiency operation transparent to the user while eliminating the need for complex external MPPT management.
3Power
If the built-in micro-controller monitors voltage levels and detects local power maxima, then power extraction is optimized, but the system requires additional components increasing device complexity
Solution Approach 1:
The built-in micro-controller is integrated directly within the input boost converter, merging the power conversion function with the local MPPT detection capability. This consolidation allows the converter to autonomously track local power maxima and adjust its operation, achieving optimized power extraction while minimizing the need for separate external control components and reducing overall system complexity.
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 method ensures continuous and stable power delivery to electronic devices by optimizing power extraction from RF waves, even in variable conditions, enhancing charging efficiency.
Implementation Method 1
power or energy extracted from RF waves
Data Source
AI summary
The present disclosure provides methods and systems for maximum power point transfer (MPPT) in receivers. An example system includes: a plurality of antenna elements configured to receive a wireless signal comprising energy; a plurality of rectifiers corresponding to the antenna elements and configured to rectify the energy; an input boost converter configured to step up the energy, wherein the input boost converter is further configured to determine at least one of a global power maximum and a local power maximum produced in the rectifiers; and a controller configured to determine an available energy at the rectifiers, wherein the controller is further configured to determine a maximum power point value from the rectifiers via the input boost converter, and wherein the controller is further configured to transmit an operational instruction to the input boost converter to further step up the energy rectified by the rectifiers.