A wireless powered device, a brain-computer interface system and a brain-computer interface device

By inverting and resonant compensation modules, transmitting coil arrays, and dynamic power path management, the problems of flexibility, transmission efficiency, and stability of wireless brain-computer interface power supply devices have been solved, achieving efficient and stable power supply and rapid response in various experimental scenarios.

CN122456784APending Publication Date: 2026-07-24TIANJIN UNIV
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Patent Information

Application Number
CN202610883414.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-18
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing wireless brain-computer interface power supply devices are inadequate in terms of flexibility, transmission efficiency, electromagnetic radiation, stability, and target detection speed, making them difficult to adapt to changing experimental scenarios and rapidly moving experimental subjects.

Method used

The design includes an inverter and resonant compensation module, a transmitting coil array, a main control gating module, and a dynamic power path management module. By optimizing power supply through phase-shifted full-bridge control and resonant compensation network, combined with a coil polling strategy based on position prediction, flexible charging range, improved transmission efficiency, stable voltage, and fast response are achieved.

Benefits of technology

It achieves stable power supply in diverse experimental environments, improves charging efficiency, reduces electromagnetic radiation, ensures system stability and rapid target detection, and is adaptable to freely moving experimental objects.

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Abstract

The present application belongs to the field of brain-computer interface, and particularly relates to a wireless energy supply device, a brain-computer interface system and a brain-computer interface device. The present application can flexibly construct a charging area of any shape and size according to different experimental environments by constructing a reconfigurable transmitting array. A cooperative energy supply mechanism of a driving circuit based on phase-shift full-bridge control (PSFB) and an LCC-S resonant compensation network is constructed. The output power is adjusted by phase-shift full-bridge control, and the resonant parameters are optimized, so that the zero-voltage switching (ZVS) of the transmitting end power device is realized. A dynamic power management architecture is introduced, and the receiving end and the lithium battery cooperatively supply power when the wireless energy is insufficient. A coil polling strategy based on position prediction is designed, and the adjacent area is preferentially detected to shorten the target recognition delay. The present application effectively solves the problem of unstable energy transmission in the free motion state, and significantly improves the power supply reliability of the system.
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