Circuit, system and method for far-field radiative powering of an implantable medical device
US9675809B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 2013 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Mar 1, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An isolated circuit including a RF input configured to receive a far field radiative powering signal and a rectified voltage output configured to provide a rectified voltage based on the received far field radiative powering signal. The isolated circuit also includes a first power assembly comprising a first impedance coupled to the RF input where the first impedance is provided, at least in part, by activating a first switch in response to the rectified voltage satisfying a first voltage threshold. The isolated circuit also includes a second power assembly comprising a second impedance coupled to the RF input where the second impedance is provided, at least in part, by activating the first switch and a second switch in response to the rectified voltage satisfying the first voltage threshold and a second voltage threshold, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.