Operating an inductive energy transfer system
US10193372B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2015 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Aug 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A receiver device in an inductive energy transfer system can include a touch sensing device. If the input surface of the touch sensing device is touched, a transmitter device can periodically stop transferring energy to allow the touch sensing device to sense touch samples while inductive energy transfer is inactive. Additionally or alternatively, a transmitter device can produce an averaged duty cycle by transferring energy to the receiver device for one or more periods at a first duty cycle step and for one or more periods at different second first duty cycle step. Additionally or alternatively, a transmitter device can reduce a current level received by a DC-to-AC converter if the current received by the DC-to-AC converter equals or exceeds a threshold. Additionally or alternatively, a transmitter device can ping a receiver device and transfer energy only after a response signal is received from the receiver device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.