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：US10469132B2

公开(公告)日：2019-11-05

申请号：US16105364

申请日：2018-08-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyung-Woo Lee ,  Jae-Hyuck Shin ,  Sang-Wook Lee ,  Chong-Min Lee ,  Hyo-Seok Han

IPC: H04B5/00 ,  H04B7/04 ,  H04W4/02 ,  H04W52/52 ,  H04W52/28 ,  H04W52/42 ,  H04B17/10 ,  H04B7/06 ,  H04W4/70

Abstract: According to an embodiment a wireless power transmitting device, includes a power transmission antenna including patch antennas to wirelessly transmit power, and communication antennas configured to receive a communication signal from an electronic device. The wireless power transmitting device also includes a processor configured to detect a direction in which the electronic device is positioned based on the communication signal received through the communication antennas and control the power transmission antenna to transmit the power in the detected direction.

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：US10340747B2

公开(公告)日：2019-07-02

申请号：US16184506

申请日：2018-11-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kang-Ho Byun ,  Kyung-Woo Lee ,  Young-Min Lee ,  Se-Ho Park ,  Yu-Su Kim ,  Sung-Ku Yeo

IPC: H02J50/12 ,  H02J5/00 ,  H04B5/00 ,  H02J7/02 ,  H02J50/80 ,  H02J50/40 ,  H02J50/60 ,  H02J17/00 ,  B60L53/12 ,  B60L11/18

Abstract: A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.

公开(公告)号：US10312696B2

公开(公告)日：2019-06-04

申请号：US15707434

申请日：2017-09-18

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H02J7/00 ,  H02J50/00 ,  H02J5/00 ,  H02J50/80 ,  H02J50/12 ,  H02J50/90 ,  H02J50/60 ,  H02J50/40 ,  H02J50/10 ,  H02J7/02 ,  H02J17/00 ,  H04B5/00 ,  H04W52/02

Abstract: A method and apparatus are provided for controlling wireless power in a wireless power network managed by a wireless power transmitter. The control method includes registering a wireless power receiver to a wireless power network corresponding to the wireless power transmitter; applying a charging power for charging the wireless power receiver to a resonator of the wireless power transmitter; detecting a change of magnitude of power applied to the resonator; detecting that a communication unit of the wireless power transmitter fails to receive a communication signal from the wireless power receiver a predetermined time; and in response to detecting the change of the magnitude of power applied to the resonator and that the communication unit fails to receive the communication signal from the wireless power receiver in the predetermined time, removing the wireless power receiver from the wireless power network.

公开(公告)号：US20190097451A1

公开(公告)日：2019-03-28

申请号：US16204363

申请日：2018-11-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Hee-Won Jung

IPC: H02J7/02 ,  H04B5/00 ,  H02J50/40 ,  H02J7/04 ,  H02J50/80 ,  H02J50/12

Abstract: A method for transmitting wireless power in a wireless charging system and a wireless power transmitting unit (PTU) and provided. The method for transmitting wireless power in a wireless charging system includes receiving information related to a voltage from each of a plurality of power receiving units (PRUs); identifying a voltage ratio of each of the plurality of PRUs based on the received information, wherein the voltage ratio is a current voltage relative to a first voltage; determining a PRU among the plurality of PRUs based on the identified voltage ratio; and adjusting transmission power according to a voltage setting value of the determined PRU.

公开(公告)号：US10164479B2

公开(公告)日：2018-12-25

申请号：US15120693

申请日：2015-02-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keum-Su Song ,  Kyung-Woo Lee ,  Hee-Won Jung

IPC: H02J50/40 ,  H02J50/80 ,  H02J50/12 ,  H02J7/02 ,  H04B5/00

Abstract: Provided is a method for controlling a wireless power transmitter transmitting wireless power to at least one wireless power receiver. The method for controlling a wireless power transmitter, according to the present invention, can comprise the steps of: receiving information related to a wireless power receiver from at least one of each of the wireless power receiver; and controlling each of a plurality of power transmitting units included in the wireless power transmitter on the basis of the information related to the wireless power receiver.

公开(公告)号：US10148320B2

公开(公告)日：2018-12-04

申请号：US15475267

申请日：2017-03-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae-Hyuck Shin ,  Kyung-Woo Lee ,  Sang-Wook Lee ,  Chang-Hyun Kim

IPC: H04B5/00 ,  H04B17/27 ,  H04W16/28 ,  H04W4/02 ,  H04M15/00 ,  H04B17/327 ,  H04W36/08 ,  H04W52/28 ,  H04W52/42 ,  H04B17/10 ,  H04B7/04 ,  H04W4/70

Abstract: Methods and apparatuses are provided for controlling a wireless power transmitting device. Information is received about a position of an electronic device from another wireless power transmitting device. Power is transmitted to the electronic device using the information about the position of the electronic device received from the other wireless power transmitting device.

公开(公告)号：US20170346301A1

公开(公告)日：2017-11-30

申请号：US15682204

申请日：2017-08-21

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 ,  H02J50/60 ,  H02J7/02 ,  H04B5/00

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：US09806537B2

公开(公告)日：2017-10-31

申请号：US14657670

申请日：2015-03-13

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H02J7/00 ,  H04W52/02 ,  H02J5/00 ,  H02J17/00 ,  H02J7/02

CPC classification number: H02J5/005 ,  H02J7/0042 ,  H02J7/0052 ,  H02J7/025 ,  H02J17/00 ,  H02J50/10 ,  H02J50/40 ,  H02J50/80 ,  H04W52/0225 ,  H04W52/0229 ,  H04W52/0245

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.