Wireless Power Control for Variable Load Synchronization
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Solution Overview
Problem
Existing wireless power systems face challenges in efficiently transmitting power to variable load devices, leading to delays and potential faults due to misalignment and varying power requirements.
Innovation Solution
A method for wireless power transmission that involves receiving load setting information, determining operating control parameters, and modifying the amount of wireless power transmitted based on these parameters, synchronized with events such as zero AC voltage crossings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless power transmission uses fixed power levels, then system simplicity is maintained, but power delivery efficiency deteriorates due to mismatch with variable load requirements
Solution Approach 1:
The system dynamically adjusts power transmission levels based on real-time load settings. The transmitter receives load setting information from the receiver and modifies transmission parameters (frequency, duty cycle, voltage) accordingly, enabling the power delivery system to adapt its characteristics to match varying appliance requirements rather than operating at fixed power levels
Solution Approach 2:
The system changes multiple transmission parameters simultaneously including frequency, duty cycle, and voltage based on load settings. This multi-parameter adjustment allows precise matching of power delivery characteristics to different appliance types and operating conditions, resolving the contradiction between maintaining simplicity and improving efficiency
2Reliability
If wireless power transmission modifies power levels in real-time, then power requirements are met accurately, but transmission delays occur due to parameter adjustment time
Solution Approach 1:
The system performs preliminary determination of operating control parameters based on received load setting information before actual power transmission begins. By pre-calculating the appropriate frequency, duty cycle, and voltage settings based on the appliance type and desired operating condition, the system eliminates delays that would occur if parameters needed to be adjusted during active transmission
Solution Approach 2:
The system uses feedback from the receiver about load settings and operating conditions to continuously optimize transmission parameters. The receiver communicates appliance state information back to the transmitter, which then adjusts its output accordingly, ensuring accurate power delivery while minimizing response time through intelligent parameter selection based on real-time system state
3Adaptability or versatility
If wireless power transmission uses multiple control parameters, then adaptability to different appliances is improved, but system complexity increases
Solution Approach 1:
The system employs a universal control framework that manages multiple parameters (frequency, duty cycle, voltage) through a single integrated controller. This controller receives appliance identification and load setting information, then automatically selects and coordinates the appropriate parameter combinations for different appliance types, providing universal adaptability without requiring separate control mechanisms for each parameter
Solution Approach 2:
The system pre-establishes parameter relationships and control strategies for different appliance types during system initialization or handshaking phase. By determining the appropriate parameter sets in advance based on appliance identification, the system reduces the complexity of real-time parameter management while maintaining high adaptability to different device requirements
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
This approach enables efficient and synchronized power transmission, reducing delays and preventing faults by ensuring that power requirements are met promptly and accurately, enhancing user experience and appliance reliability.
Implementation Method 1
a 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
Implementation Method 2
The power may be transferred using inductive coupling or resonant coupling between the primary coil and the secondary coil
Implementation Method 3
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 transmission apparatus may configure characteristics of the wireless power transmission based on a load setting of a wireless power reception apparatus. The wireless power transmission apparatus may take into account a coupling factor and power transfer characteristics of the wireless power reception apparatus in determining a configuration of the wireless power transmission from the wireless power transmission apparatus to the wireless power reception apparatus. In some implementations, a change in wireless power transmission may occur based on a corresponding change in the load. For example, the change in wireless power transmission and the corresponding change in the load may occur in relation to a synchronization event.