The technology employs a resonance-based wireless power transfer system designed for implantable devices operating in freely moving subjects. The transmitter side features a hexagonally arranged array of primary coils tuned via capacitive elements to achieve a specific resonant frequency and Q‑factor. A seven-loop driver coil array, linked to an RF power amplifier, activates targeted coils based on tracking signals from digital cameras. On the receiver end, a compact composite coil—integrating two planar spiral sub-coils with one helical sub-coil—captures the magnetic fields, rectifies, and filters the energy to power the implanted device.
Description
This approach is differentiated by its precise targeting and efficient energy delivery. By selectively activating specific transmitter coils based on real-time tracking of implant location, the system ensures optimal energy transfer even when the device moves. The innovative combination of a specialized coil arrangement and advanced tracking sets it apart, enabling reliable and consistent power supply to mobile implants with enhanced safety and performance.
Applications
- Implantable device wireless charging
- Animal implant wireless charging
- Mobile robot wireless charging
- Wireless EV charging
Advantages
- Ensures reliable and efficient power transfer to implantable devices even when they move freely.
- Employs targeted activation through advanced tracking, optimizing energy usage and minimizing waste.
- Features an innovative, compact receiver design that doubles as biocompatible implant packaging.
- Utilizes a hexagonal transmitter coil array for uniform magnetic field distribution and enhanced performance.
- Offers versatile applications beyond medical implants, including mobile robots and electric vehicle charging.
IP Status
https://patents.google.com/patent/US9368274B2
