Multi-coil wireless power system
US11552505B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2020 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Dec 9, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/23
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wireless power system for an implantable device is described. The system includes multiple inductive charging coils to increase an effective area for receiving an electromagnetic charging field from a wireless charging device. The multiple inductive charging coils produce different alternating current signals in response to receiving the electromagnetic charging field. The system includes a rectifying circuit for rectifying the alternating current signals into direct current signals. The system also includes a current combination circuit for combining the multiple direct current signals into a single direct current for powering an operation of the implantable device. Methods and devices for implementing the power system in an implantable device are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.