Wireless power supply device that compensates for misalignment
By aligning phases of multiple power supply coils and adding a resonant coil or capacitor to the receiving coil, the method enhances magnetic flux linkage, addressing power loss due to misalignment in wireless power transmission.
JP2026113731APending Publication Date: 2026-07-07KYOKO SEISAKUSHOKK
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Patent Information
- Application Number
- JP2026069053
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-03-31
- Publication Date
- 2026-07-07
AI Technical Summary
Technical Problem
The reduction in magnetic flux linking between power supply and power receiving coils due to physical misalignment during wireless power transmission using electromagnetic induction leads to decreased power transmission efficiency.
Method used
The method involves arranging multiple power supply coils with aligned phases and adding a new coil near the power receiving coil or configuring the receiving coil to form a resonant circuit with a capacitor at or near the high-frequency applied to the supply coil, enhancing magnetic flux linkage.
Benefits of technology
This approach effectively suppresses power loss during misalignment by increasing the magnetic flux linking between the coils, ensuring efficient power transfer even with rough alignment.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026113731000001_ABST
Abstract
In a wireless power supply device that utilizes electromagnetic induction, a physical misalignment between the power supply coil and the power receiving coil will result in significant power loss during power supply. [Solution] The power supply unit is characterized by arranging multiple power supply coils, roughly aligning the phase of the high frequency applied to each coil, and adding a coil that forms a resonant circuit with an additional capacitor near the power receiving unit coil at or near the frequency of the high frequency, or by configuring the power receiving unit coil to form a resonant circuit with an additional capacitor, thereby increasing the magnetic flux linked between the power supply unit and the power receiving unit coils, and reducing power loss due to the physical misalignment of the two coils.
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