Wireless power transmitter, wireless power receiver, and control methods thereof
US9722446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2014 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Apr 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control method of a wireless power transmitting unit transmitting charging power to a wireless power receiving unit is provided. The control method includes receiving first signals from one or more wireless power receiving units; classifying wireless power receiving units to be communicated with from among the one or more wireless power receiving units based on reception intensities of the received first signals; transmitting wireless transmission power with predetermined level; receiving second signals including voltage information of the classified wireless power receiving units from the classified wireless power receiving units; and communicating with one or more wireless power receiving unit among the classified wireless power receiving units based on the wireless transmission power and the voltage information of the second signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.