Wireless Power Control for Variable Load Response
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Solution Overview
Problem
Existing wireless power systems face inefficiencies and delays in responding to changes in load states of variable loads, leading to potential faults and degraded user experiences due to delayed power adjustments.
Innovation Solution
A method for dynamic control of wireless power transmission that involves a wireless power transmission apparatus and reception apparatus, where the reception apparatus communicates configuration data and feedback information to determine and adjust operating control parameters, synchronizing power modifications with load state changes to ensure timely power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless power transmission uses fixed power levels, then system simplicity is maintained, but responsiveness to load state changes deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the reception apparatus sends load state information back to the transmission apparatus. The transmission apparatus receives this feedback and dynamically adjusts power transmission levels accordingly, enabling responsive adaptation to variable loads while maintaining system simplicity through standardized communication protocols.
Solution Approach 2:
The system transitions from fixed power levels to dynamic power adjustment based on real-time load state feedback. The transmission apparatus modifies power transmission continuously according to the reception apparatus's needs, achieving responsiveness without requiring complex manual control mechanisms.
2Speed
If wireless power transmission dynamically adjusts power levels, then responsiveness to load state changes improves, but system complexity increases
Solution Approach 1:
The feedback loop enables rapid detection of load state changes and immediate adjustment of power transmission. The reception apparatus continuously monitors its power needs and communicates changes back to the transmission apparatus, which quickly modifies transmission parameters without requiring complex intermediate processing steps.
Solution Approach 2:
The reception apparatus autonomously determines its own power requirements and communicates these needs to the transmission apparatus. This self-service approach eliminates the need for complex centralized control systems, as each apparatus independently manages its power demands and receives appropriate adjustments.
3Loss of energy
If feedback mechanism is implemented, then power transmission efficiency improves, but communication overhead increases
Solution Approach 1:
The feedback mechanism transmits only essential load state information (such as power level requirements or load state identifiers) rather than complete operational parameters. This minimized data exchange achieves effective power optimization while keeping communication overhead low through selective information transmission.
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 efficient and responsive power delivery to variable loads, avoiding delays and faults by synchronizing power adjustments with load state changes, thereby enhancing user experience and appliance performance.
Implementation Method 1
The wireless power transmission apparatus may include a primary coil that produces an electromagnetic field that may induce a voltage in a secondary coil of the wireless power reception apparatus when the secondary coil is placed in proximity to the primary coil. In this configuration, the electromagnetic field may wirelessly transfer power to the secondary coil. The power may be transferred using inductive coupling or resonant coupling between the primary coil and the secondary coil.
Data Source
AI summary
This disclosure provides systems, methods and apparatuses for wireless power transmission and reception. A wireless power transmission apparatus may include a primary coil that transmits power to a corresponding secondary coil in a wireless power reception apparatus. The wireless power reception apparatus may include a variable load. The wireless power transmission apparatus may control the transmission of wireless power based on configuration data and feedback information from the wireless power reception apparatus. The configuration data and feedback information may enable dynamic control of wireless power and may enable the wireless power transmission apparatus to determine an appropriate operating control parameter for the transmission of wireless power to support a load state of the variable load at a particular time. In some implementations, the wireless power transmission apparatus may take into account an operating coupling factor (K-factor) or other information to estimate control parameters.