Wirelessly chargeable portable power bank
US10727686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2018 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jun 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power bank includes, in part, a rechargeable battery, a wireless power recovery unit adapted to receive power wirelessly, a battery charging circuit adapted to deliver the power recovered by the power recovery unit to the rechargeable battery, an output interface, and a voltage reconditioning circuit adapted to supply power from the rechargeable battery to the output interface for delivery to an external device. The wireless power recovery unit may include one or more of a multitude of photodiodes adapted to convert a coherent optical signal to electrical power, an acoustic transducer adapted to convert acoustic waves to an electrical power, an inductive coupling circuit adapted to convert time varying magnetic flux to electrical power, and an RF power recovery unit adapted to convert an RF signal to electrical power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.