Wireless Power Control for Synchronized Variable Load Changes
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Solution Overview
Problem
Existing wireless power systems face challenges in efficiently adapting to changes in load settings of cordless appliances, leading to potential delays and faults due to misalignment in power supply and demand.
Innovation Solution
A method for wireless power transmission that involves receiving information on load settings from a wireless power reception apparatus, determining operating control parameters based on this information, and modifying the wireless power transmission accordingly, synchronized with a synchronization event such as zero AC voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless power transmission systems use traditional feedback control to adapt to load setting changes, then the system can respond to power demand changes, but delays and misalignment occur between power supply and demand due to sequential communication and parameter adjustment steps
Solution Approach 1:
The transmitting apparatus performs preliminary determination of operating control parameters based on load setting information received from the receiving apparatus. By pre-calculating the required power transmission parameters before actual power delivery, the system eliminates delays associated with real-time feedback adjustments and ensures immediate synchronized power supply when load settings change.
2Productivity
If the wireless power system modifies power transmission parameters based on real-time load information, then power delivery efficiency improves, but system complexity increases due to additional communication and control mechanisms
Solution Approach 1:
The system implements a feedback mechanism where the receiving apparatus communicates load setting information to the transmitting apparatus, which then determines appropriate operating control parameters. This feedback loop enables efficient power delivery by continuously adapting transmission parameters to match actual power demand, while the structured implementation keeps control complexity manageable.
3Reliability
If the system synchronizes power modification with AC voltage zero crossings, then coordination between transmission and reception apparatuses is achieved, but the control timing becomes more complex
Solution Approach 1:
The system utilizes the periodic nature of AC voltage waveforms by synchronizing power parameter modifications with zero crossing events. This periodic synchronization point provides a reliable and predictable timing reference that ensures both transmitting and receiving apparatuses are coordinated, while leveraging the natural periodicity of the power waveform simplifies the timing control mechanism.
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 synchronous coordination between the wireless power transmission and reception apparatuses, avoiding delays and ensuring efficient power delivery to cordless appliances, thus enhancing user experience and preventing faults.
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.