公开(公告)号：USRE49839E1

公开(公告)日：2024-02-13

申请号：US16854232

申请日：2020-04-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Kang-Ho Byun ,  Chong-Min Lee ,  Hee-Won Jung ,  Min-Cheol Ha ,  Seung-Woo Han

IPC: H02J50/00 ,  H02J50/12 ,  H02J50/80 ,  H02J50/60 ,  H02J7/00

CPC classification number: H02J50/12 ,  H02J50/60 ,  H02J50/80 ,  H02J7/0048

Abstract: A method of controlling a wireless power receiver. The method includes receiving, by a power receiver, power from a wireless power transmitter; receiving, from the wireless power transmitter, a time set value that is set for checking cross connection; in response to receiving the time set value, generating a power variation in the wireless power receiver by converting a load status from a first load status to a second load status; and maintaining the second load status for a time corresponding to the received time set value.

公开(公告)号：US11552508B2

公开(公告)日：2023-01-10

申请号：US17027079

申请日：2020-09-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyung-Woo Lee ,  Hee-Won Jung

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

Abstract: A method for transmitting wireless power in a wireless charging system and a wireless power transmitting unit (PTU) are 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 where 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：US11206059B2

公开(公告)日：2021-12-21

申请号：US15625410

申请日：2017-06-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Sang-Wook Kwon ,  Sung-Kweon Park

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

Abstract: A wireless power transmitter, a wireless power receiver, and control methods thereof are provided. The wireless power transmitter includes a Near-Field Communication (NFC) antenna for NFC, a power supply, a NFC module, a resonator that wirelessly transmits power to a wireless power receiver, and a controller that controls the power supply to apply a beacon power for detecting an impedance change that is caused by placement of the wireless power receiver on the wireless power transmitter, to the resonator during a first time period, and controls the NFC module to apply NFC tag detection power to the NFC antenna during a second time period.

公开(公告)号：US10886784B2

公开(公告)日：2021-01-05

申请号：US16436411

申请日：2019-06-10

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H01M10/44 ,  H01M10/46 ,  H02J50/12 ,  H02J50/60 ,  H02J50/80 ,  H04B5/00 ,  H02J7/02 ,  H02J5/00 ,  H01M10/42 ,  H02J7/00

Abstract: Methods and apparatuses for performing wireless charging are disclosed. A method of controlling a wireless power receiver includes receiving, through a power receiving circuit, a first power from a wireless power transmitter when the wireless power receiver is powered off; driving a communication controller using the received first power; establishing, by the communication controller, a communication connection with the wireless power transmitter, using a first communication stack stored in a first memory, while receiving the first power; and performing, by the communication controller, communication with the wireless power transmitter.

公开(公告)号：US10804746B2

公开(公告)日：2020-10-13

申请号：US16836375

申请日：2020-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H01M10/44 ,  H01M10/46 ,  H02J50/12 ,  H02J50/60 ,  H02J50/80 ,  H04B5/00 ,  H02J7/02 ,  H02J5/00 ,  H01M10/42 ,  H02J7/00

Abstract: Methods and apparatuses for performing wireless charging are disclosed. A method of controlling a wireless power receiver includes receiving, through a power receiving circuit, a first power from a wireless power transmitter when the wireless power receiver is powered off; driving a communication controller using the received first power; establishing, by the communication controller, a communication connection with the wireless power transmitter, using a first communication stack stored in a first memory, while receiving the first power; and performing, by the communication controller, communication with the wireless power transmitter.

公开(公告)号：US10797538B2

公开(公告)日：2020-10-06

申请号：US16587692

申请日：2019-09-30

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H02J50/80 ,  H02J7/04 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90 ,  H02J7/00 ,  H02J7/02

Abstract: A method for controlling a wireless power receiver including a charging unit and a wireless power receiver are provided. The method includes receiving wireless power; rectifying the received wireless power and outputting Direct Current (DC) wireless power; and determining whether a voltage of the rectified wireless power is equal to or higher than an allowable voltage of the charging unit.

公开(公告)号：US10797530B2

公开(公告)日：2020-10-06

申请号：US16883660

申请日：2020-05-26

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 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  B60L53/12 ,  H04B5/00

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：US10790701B2

公开(公告)日：2020-09-29

申请号：US14155922

申请日：2014-01-15

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H02J50/10 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H04B5/00 ,  H02J7/00

Abstract: A wireless power transmitter and a method for operating the wireless power transmitter are provided, which transmit charging power to a wireless power receiver. A control signal is provided that includes time information and load change information, and a load change of the wireless power receiver is detected during a period of time corresponding to the first time information. If the detected load change of the wireless power receiver corresponds to the load change information included in the control signal, a determination is made that the wireless power receiver is admitted for charging.

公开(公告)号：US10771115B2

公开(公告)日：2020-09-08

申请号：US16656728

申请日：2019-10-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04B5/00 ,  H04W4/02 ,  H04W52/52 ,  H04W52/28 ,  H04W52/42 ,  H04B17/10 ,  H04B7/06 ,  H04B7/04 ,  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：US10574080B2

公开(公告)日：2020-02-25

申请号：US14825365

申请日：2015-08-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Woo Lee ,  Hee-Won Jung

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

Abstract: A method and an apparatus are provided for determining a cross connection during wireless charging. The method includes receiving changed voltage setting information from a wireless power receiver, transmitting power adjusted according to the received voltage setting information, receiving measured voltage information from the wireless power receiver, and determining whether a cross connection occurs based on the voltage setting information and the measured voltage information.