公开(公告)号：US11192460B2

公开(公告)日：2021-12-07

申请号：US16859383

申请日：2020-04-27

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: B60L53/12 ,  H02J5/00 ,  H04B5/00 ,  H02J7/02 ,  H02J50/80 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60

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：US11043856B2

公开(公告)日：2021-06-22

申请号：US17028533

申请日：2020-09-22

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

Abstract: A method for controlling an electronic device including a charging circuit is provided. The method includes receiving power wirelessly from a power transmitting device; rectifying the received power; based on a voltage of the rectified power being greater than or equal to an allowable voltage of the charging circuit, controlling to convert the rectified power through a converting circuit of the electronic device and to output the converted power to the charging circuit for charging a battery of the electronic device, wherein the allowable voltage relates to a maximum voltage or a preferable voltage to be applied to the charging circuit; and based on the voltage of the rectified power being less than the allowable voltage of the charging circuit, controlling to stop converting the rectified power and to output the rectified power to the charging circuit by connecting the rectifying circuit to the charging circuit.

公开(公告)号：US10958080B2

公开(公告)日：2021-03-23

申请号：US16911014

申请日：2020-06-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

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.

公开(公告)号：US10931144B2

公开(公告)日：2021-02-23

申请号：US16748297

申请日：2020-01-21

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H02J50/10 ,  H02J7/00 ,  H02J50/40 ,  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：US10658874B2

公开(公告)日：2020-05-19

申请号：US16381459

申请日：2019-04-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Woo-Ram Lee ,  Yu-Su Kim ,  Se-Ho Park ,  Seung-Woo Han

IPC: H02J7/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H02J50/10 ,  H02J7/02

Abstract: An apparatus and a method for are provided for a wireless power receiver. The method includes receiving power from a wireless power transmitter; converting the power in an alternating current (AC) form into a direct current (DC) form and providing the converted power to a battery of the electronic device; measuring a temperature of a point in the wireless power receiver during reception of the wireless power; maintaining an amount of the converted power at a first level if the temperature is lower than a first temperature; decreasing the amount of the converted power to a second level which is lower than the first level if the amount of the converted power is at the first level and the temperature is higher than or equal to the first temperature; stopping providing the converted power to the battery if the temperature is higher than a second temperature; and transmitting, to the wireless power transmitter, a signal including status information of the wireless power receiver device and control information to control the wireless power transmitter.

公开(公告)号：US10601263B2

公开(公告)日：2020-03-24

申请号：US15832618

申请日：2017-12-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung-Bum Park ,  Se-Ho Park ,  Young-Min Lee

IPC: H02J7/00 ,  H02J50/80 ,  H02J50/10

Abstract: Methods and apparatus for wireless charging are provided. Transmission power transmitted from a wireless power transmitter is received at a power receiver of a wireless power receiver. A battery of the wireless power receiver is charged with the received transmission power. It is determined whether the battery is fully charged. A packet from a communication unit of the wireless power receiver is transmitted to the wireless power transmitter when the battery is fully charged. An auxiliary charge of the battery is performed by receiving strength-reduced transmission power from the wireless power transmitter.

公开(公告)号：US10305311B2

公开(公告)日：2019-05-28

申请号：US15242777

申请日：2016-08-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joon-Il Kim ,  Won-Ki Lee ,  Sang-Moo Hwangbo ,  Se-Ho Park

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

Abstract: According to various embodiments of the present disclosure, an electronic device comprising: a housing; a conductive pattern that is provided in the housing; and a controller that is electrically connected with the conductive pattern, configured to apply a current to the conductive pattern, monitor the current, and if the monitored current value exceeds a first threshold value for more than a selected time, changes the current value to a first selected value that is equal to or less than the first threshold value; wherein the conductive pattern is configured to generate induced electric power responsive to application of current by the controller. Various embodiments may be provided.

公开(公告)号：US10141773B2

公开(公告)日：2018-11-27

申请号：US15650158

申请日：2017-07-14

Applicant: Samsung Electronics Co., Ltd.

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

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

Abstract: Methods and apparatuses are provided for method is provided for controlling power transmission in a power transmitter. Voltage information required by a plurality of power receivers is received from the plurality of power receivers. The voltage information includes a minimum voltage, a reference voltage that is greater than the minimum voltage, and a demanded voltage. Power is transmitted to the plurality of power receivers. A report about a power reception condition while transmitting the power is received from the plurality of power receivers. The report includes a measured voltage at the plurality of power receivers. One of the plurality of power receivers is selected. An amount of the power is adjusted by minimizing a difference between the demanded voltage and the measured voltage of the selected power receiver.

公开(公告)号：US09948126B2

公开(公告)日：2018-04-17

申请号：US14234912

申请日：2012-09-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki-Hyun Kim ,  Jin-Hyoung Park ,  Ki-Ho Kim ,  Se-Ho Park ,  Young-Min Lee

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/70 ,  H02J50/12 ,  H02J17/00 ,  H02J5/00

CPC classification number: H02J50/12 ,  H01Q1/243 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/70 ,  H04B1/3883

Abstract: A portable terminal is provided, including a cover member which is detachably provided at a rear surface of a main body of a terminal, a resonant antenna for a reception unit provided inside of the cover member, a reception circuit unit provided inside of the main body, and a connection unit for connecting the resonant antenna for a reception unit with the reception circuit unit. The portable terminal efficiently receives the signal power provided from a charger by arranging the resonant antenna inside of the cover member, and minimizes the thickness of the portable terminal by providing the reception circuit unit inside of the main body of the terminal.

公开(公告)号：US09876378B2

公开(公告)日：2018-01-23

申请号：US13896931

申请日：2013-05-17

Applicant: Samsung Electronics Co., Ltd.

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

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

CPC classification number: H02J7/025 ,  H02J5/005 ,  H02J50/10 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  Y02B70/30 ,  Y02D70/00

Abstract: Methods and apparatus are provided for controlling power transmission. A minimum voltage and a maximum voltage receivable at the at least one power receiver, a reference voltage used to divide a range between the minimum voltage and the maximum voltage, and a demanded voltage required by the at least one power receiver, are received from at least one power receiver. A report about a power reception condition is received from the at least one power receiver. The report includes a measured voltage at the at least one power receiver during power transmission from the power transmitter. It is determined whether the measured voltage is between the minimum voltage and the reference voltage. Power is adjusted and supplied when the measured voltage is not between the minimum voltage and the reference voltage.