US 11,108,279 B2Granted

Method for determining cross connection in wireless charging

AssigneeSamsung Electronics Co., Ltd.

InventorsKyung-Woo Lee, Hee-Won Jung

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Abstract

A method and an apparatus are provided for determining a cross connection during wireless charging. The method includes transmitting a first power to a plurality of wireless power receivers, based on first voltage setting information of a first wireless power receiver from among the plurality of wireless power receivers; determining to identify whether the wireless power transmitter is cross-connected with a second wireless power receiver from among the plurality of wireless power receivers; receiving second voltage setting information from the second wireless power receiver, while transmitting the first power to the plurality of wireless power receivers; transmitting a second power the plurality of wireless power receivers based on the second voltage setting information of the second wireless power receiver; and receiving measured voltage information from the second wireless power receiver, while transmitting the second power to the plurality of wireless power receivers.

Claims18

Dependent claims

A method of a wireless power transmitter, the method comprising:

transmitting, by a power transmitter, a first power with a first amount to a plurality of wireless power receivers, based on first voltage setting information of a first wireless power receiver from among the plurality of wireless power receivers;
determining to identify whether the wireless power transmitter is cross-connected with a second wireless power receiver from among the plurality of wireless power receivers;
receiving, by a communication circuit, second voltage setting information from the second wireless power receiver, while transmitting, by the power transmitter, the first power to the plurality of wireless power receivers;
transmitting, by the power transmitter, a second power with a second amount to the plurality of wireless power receivers based on the second voltage setting information of the second wireless power receiver;
receiving, by the communication circuit, measured voltage information from the second wireless power receiver, while transmitting the second power to the plurality of wireless power receivers;
and
determining whether a cross connection occurs based at least in part on whether the second voltage setting information corresponds to the measured voltage information.

4 more elements

A wireless power transmitter for wirelessly charging a plurality of wireless power receivers, the wireless power transmitter comprising:

a power transmitter configured to transmit a first power with a first amount to the plurality of wireless power receivers, based on first voltage setting information of a first wireless power receiver from among the plurality of wireless power receivers;
a communication circuit;
and
a controller configured to:
determine to identify whether the wireless power transmitter is cross-connected with a second wireless power receiver from among the plurality of wireless power receivers,
receive, through the communication circuit, second voltage setting information from the second wireless power receiver, while the power transmitter is transmitting the first power to the plurality of wireless power receivers,
control the power transmitter to transmit a second power with a second amount to the plurality of wireless power receivers based on the second voltage setting information of the second wireless power receiver,
receive, through the communication circuit, measured voltage information from the second wireless power receiver, while the power transmitter is transmitting the second power to the plurality of wireless power receivers;
and
determine whether a cross connection occurs based at least in part on whether the second voltage setting information corresponds to the measured voltage information.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/799,355Filed 24 Feb 2020 · continuation
Priority: KR 10-2014-010524913 Aug 2014
Published: US 2020/0195054 A118 Jun 2020
Granted: 31 Aug 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H02J 7/42
Characterised by the exchange of charge or discharge related data: with electronic devices having internal batteries, e.g. mobile phones
H02J 50/12
Using inductive coupling: of the resonant type
H02J 50/40
Circuit arrangements or systems for wireless supply or distribution of electric power: using two or more transmitting or receiving devices
H02J 50/80
Circuit arrangements or systems for wireless supply or distribution of electric power: involving the exchange of data, concerning supply or…

Family

Application14/825,365Parent of this continuation · filed 13 Aug 2015
US 2020/0195054 A1Pre-grant publication · published 18 Jun 2020
US 10,574,080 B2Parent of this continuation
US 2016/0049826 A1Published application
US 11,108,279 B2This patent

From the US filing history. Foreign family members aren’t listed.