公开(公告)号：US11303135B2

公开(公告)日：2022-04-12

申请号：US16791631

申请日：2020-02-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyuk-Choon Kwon ,  Nam-Yun Kim ,  Ho-Dong Kim ,  Kang-Ho Byun ,  Kyung-Woo Lee ,  Hee-Won Jung

IPC: H02J5/00 ,  H04B5/00 ,  H02J50/60 ,  H02J7/02

Abstract: A method and apparatus for controlling a wireless power transmitter configured to transmit power to a wireless power receiver is provided. The method includes receiving a first signal from the wireless power receiver, wherein the first signal comprises load detection indication bits, detecting a change in load of the wireless power transmitter caused by placement of the wireless power receiver in a charging area of the wireless power transmitter, based on the load detection indication bits, and determining whether to transmit a second signal to the wireless power receiver based on detecting the change in load of the wireless power transmitter.

公开(公告)号：US11128182B2

公开(公告)日：2021-09-21

申请号：US16694478

申请日：2019-11-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kang-Ho Byun ,  Kyung-Woo Lee ,  Ho-Seong Lee ,  Hyuk-Choon Kwon ,  Soo-Yeon Jung ,  Hee-Won Jung

IPC: H02J50/80 ,  H02J7/02 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H04W76/14 ,  H04B5/00 ,  H02J5/00 ,  H02J7/00

Abstract: Disclosed is a control method for transmitting charging power to a wireless power receiver in a wireless power transmitter, including receiving an advertisement signal from a wireless power receiver, the advertisement signal including a handle value and a preset universally unique identifier (UUID), identifying a value assigned to a characteristic by adding a predetermined number to the handle value, transmitting a connection request signal to the wireless power receiver for establishing a communication connection with the wireless power receiver, in response to the advertisement signal, receiving, from the wireless power receiver, static information of the wireless power receiver over the communication connection, and transmitting, based on the static information, a control signal including permission information to the wireless power receiver.

公开(公告)号：US10763707B2

公开(公告)日：2020-09-01

申请号：US15945378

申请日：2018-04-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Kang-Ho Byun ,  Hee-Won Jung

IPC: H02J7/00 ,  H02J50/10 ,  H02J50/40 ,  H02J50/12 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90

Abstract: A control method of a wireless power transmitter and a wireless power transmitter. The method includes transmitting a first power with a first cycle; transmitting a second power with a second cycle, wherein the second cycle is greater than the first cycle; when a wireless power receiver is placed within a charging area and is detected by the first power, upon detecting the wireless power receiver by the first power, transmitting a third power to drive the wireless power receiver to transmit a search signal to the wireless power transmitter; and when the wireless power receiver is placed within the charging area and is not detected by the first power, using the second power to detect the wireless power receiver and drive the wireless power receiver to transmit the search signal to the wireless power transmitter.

公开(公告)号：US10749382B2

公开(公告)日：2020-08-18

申请号：US15991357

申请日：2018-05-29

Applicant: Samsung Electronics Co., Ltd. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Ki-Young Kim ,  Eui-Hoon Chung ,  Jung-Ik Ha ,  Kang-Ho Byun ,  Ji-Hoon Jung

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/80 ,  H02J50/90 ,  H02J50/10 ,  H04B5/00 ,  H02J5/00 ,  B60L53/12 ,  B60L53/38

Abstract: A wireless power transmitter is provided. The wireless power transmitter includes a power source configured to provide direct current (DC) power, an inverter configured to receive the DC power from the power source, invert the DC power into alternating current (AC) power, and output the AC power, a coil configured to generate a magnetic field based on an input of the AC power, a sensor configured to measure a voltage of the AC power output from the inverter and a current of the AC power output from the inverter, and at least one processor configured to identify an external voltage applied to a load of an electronic device based on the voltage of the AC power and the current of the AC power, wherein the electronic device is configured to be wirelessly charged using the magnetic field.

公开(公告)号：US20200235609A1

公开(公告)日：2020-07-23

申请号：US16840765

申请日：2020-04-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kang-Ho Byun ,  Se-Ho Park ,  Hae-Young Jun ,  Hee-Won Jung

IPC: H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H02J50/10

Abstract: Methods and apparatuses are provided for controlling power transmission in a power transmitter. Voltage information including a minimum voltage, a maximum voltage, and a first voltage, is received from each of a plurality of power receivers. Power is transmitted to the plurality of power receivers based on the voltage information. A respective report about a power reception condition is received from each of the plurality of power receivers while transmitting the power. Each respective report includes a measured voltage at a corresponding power receiver of the plurality of power receivers. A power receiver is selected from among the plurality of power receivers based on the received reports. An amount of the power is adjusted by reducing a difference between a first voltage of the selected power receiver and a measured voltage of the selected power receiver.

公开(公告)号：US10700531B2

公开(公告)日：2020-06-30

申请号：US16388148

申请日：2019-04-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Kang-Ho Byun ,  Se-Ho Park

IPC: H02J5/00 ,  H02J7/00 ,  H02J50/10 ,  H02J50/40 ,  H02J50/60 ,  H02J50/90 ,  H02J50/12 ,  H02J50/80 ,  H04B5/00 ,  H02J7/02 ,  H04W52/02

Abstract: A method and apparatus are provided for operating a wireless power transmitter. The method includes controlling the wireless power transmitter to wirelessly transmit power for charging a first power receiver, and while transmitting the power, receiving a search signal from a second power receiver, transmitting a search response signal corresponding to the search signal, and receiving, from the second power receiver, a request join signal including at least one piece of information associated with a power requirement of the second power receiver. Based on identifying that the wireless power transmitter is capable of providing the power having an amount greater than the power requirement of the second power receiver, the method further includes transmitting a charge start command to the second power receiver.

公开(公告)号：US10554053B2

公开(公告)日：2020-02-04

申请号：US16537003

申请日：2019-08-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Kang-Ho Byun ,  Se-Ho Park

IPC: H02J7/00 ,  H02J50/10 ,  H02J5/00 ,  H02J50/40 ,  H02J7/02 ,  H02J50/80 ,  H04W52/02

Abstract: A method and apparatus are provided for determining, by a wireless power transmitter, whether a wireless power receiver is removed from a wireless power network managed by the wireless power transmitter. The method includes transmitting a command signal to report power information of the wireless power receiver at stated periods; determining whether a report signal corresponding to the command signal is received from the wireless power receiver; and determining that the wireless power receiver is removed from the wireless power network, if the report signal is not received after transmitting the command signal a predetermined number of times at the stated periods.

公开(公告)号：US20190363545A1

公开(公告)日：2019-11-28

申请号：US16537003

申请日：2019-08-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo LEE ,  Kang-Ho Byun ,  Se-Ho PARK

IPC: H02J5/00 ,  H02J50/40 ,  H02J7/00 ,  H02J7/02 ,  H02J50/80 ,  H02J50/10

Abstract: A method and apparatus are provided for determining, by a wireless power transmitter, whether a wireless power receiver is removed from a wireless power network managed by the wireless power transmitter. The method includes transmitting a command signal to report power information of the wireless power receiver at stated periods; determining whether a report signal corresponding to the command signal is received from the wireless power receiver; and determining that the wireless power receiver is removed from the wireless power network, if the report signal is not received after transmitting the command signal a predetermined number of times at the stated periods.

公开(公告)号：US10425130B2

公开(公告)日：2019-09-24

申请号：US15984928

申请日：2018-05-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyuk-Choon Kwon ,  Kyung-Woo Lee ,  Kang-Ho Byun ,  Hee-Won Jung

IPC: H01F38/00 ,  H04B5/00 ,  H02J50/40 ,  H02J50/12 ,  H02J50/80 ,  H02J50/60 ,  H02J7/02 ,  H02J50/10 ,  H02J5/00 ,  H02J7/04

Abstract: Control method of wireless power receiver that includes transmitting advertisement signal to search for wireless power transmitter; receiving, from wireless power transmitter, connection request signal to form connection between wireless power receiver and wireless power transmitter, wherein connection request signal corresponds to advertisement signal; receiving charging power from wireless power transmitter; detecting error state in wireless power receiver while receiving charging power; generating alert signal indicating error state; and transmitting alert signal to wireless power transmitter, wherein error state includes at least one of over-voltage state in which rectifier voltage of wireless power receiver is greater than reference voltage, over-current state in which rectifier current of the wireless power receiver is greater than reference current, over-temperature state in which temperature of wireless power receiver is greater than reference temperature, and system error of wireless power receiver, and wherein a switch to protect wireless power receiver is turned off if the error state is over-voltage state.

公开(公告)号：US20190245354A1

公开(公告)日：2019-08-08

申请号：US16388148

申请日：2019-04-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo LEE ,  Kang-Ho Byun ,  Se-Ho Park

IPC: H02J5/00 ,  H02J50/40 ,  H02J50/90 ,  H02J50/60 ,  H02J50/10 ,  H02J50/12 ,  H02J7/00 ,  H02J7/02 ,  H02J50/80 ,  H04B5/00

Abstract: A method and apparatus are provided for operating a wireless power transmitter. The method includes controlling the wireless power transmitter to wirelessly transmit power for charging a first power receiver, and while transmitting the power, receiving a search signal from a second power receiver, transmitting a search response signal corresponding to the search signal, and receiving, from the second power receiver, a request join signal including at least one piece of information associated with a power requirement of the second power receiver. Based on identifying that the wireless power transmitter is capable of providing the power having an amount greater than the power requirement of the second power receiver, the method further includes transmitting a charge start command to the second power receiver.