公开(公告)号：US10432245B2

公开(公告)日：2019-10-01

申请号：US14365927

申请日：2012-12-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kang-Ho Byun ,  Hong-Kweun Kim ,  Se-Ho Park ,  Kyung-Woo Lee ,  Young-Min Lee

IPC: H04B1/3883 ,  H02J50/10 ,  H02J50/80 ,  H02J17/00 ,  H02J7/02 ,  H04B5/00 ,  H02J7/00

Abstract: The present invention relates to a method for adjusting a power information transmission period from a mobile terminal to be charged in a wireless charging apparatus. To this end, a wireless charging apparatus according to the present invention comprises: a communication unit for receiving power information from at least one mobile terminal; and a control unit for determining a transmission period of power information for each of the at least one mobile terminal based on the power information and adjusting the transmission period according to whether the power information is received from the at least one mobile terminal. As described above, the waste of resources, which may occur due to unnecessary packet transmission, can be reduced by adaptively adjusting the transmission period, thereby increasing the efficiency of power transmission.

公开(公告)号：US10432037B2

公开(公告)日：2019-10-01

申请号：US15592731

申请日：2017-05-11

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 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：US20190245372A1

公开(公告)日：2019-08-08

申请号：US16384419

申请日：2019-04-15

Applicant: Samsung Electronics Co., Ltd.

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

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

Abstract: An apparatus and method are provided for permitting a wireless power receiver to be charged by a wireless power transmitter. The method includes generating a Power Receiving Unit (PRU) control signal including permission information indicating charging permission for the wireless power receiver; and transmitting the PRU control signal to the wireless power receiver.

公开(公告)号：US10374465B2

公开(公告)日：2019-08-06

申请号：US15593832

申请日：2017-05-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung-Ku Yeo ,  Chong-Min Lee ,  Jae-Seok Park ,  Jae-Hyun Park ,  Kyung-Woo Lee ,  Hyo-Seok Han

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/20 ,  H02J50/40 ,  H01Q3/36 ,  H01Q9/04 ,  H01Q21/06 ,  H01Q3/28 ,  H02J50/90 ,  H02J50/23

Abstract: A wireless power transmitting device is provided. The wireless power transmitting device includes a patch antenna, and a transmission/reception processing circuit configured to output a first signal to the patch antenna during a first period, and process a second signal output from the patch antenna during a second period, wherein the patch antenna is configured to transmit a transmission wave using the first signal, and output the second signal to the transmission/reception processing circuit using a reception wave.

公开(公告)号：US10355494B2

公开(公告)日：2019-07-16

申请号：US15640806

申请日：2017-07-03

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H02J7/00 ,  H02J50/10 ,  H02J50/80 ,  H02J50/40 ,  H02J5/00 ,  H04W52/02 ,  H02J17/00 ,  H02J7/02

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：US10333359B2

公开(公告)日：2019-06-25

申请号：US15821290

申请日：2017-11-22

Applicant: Samsung Electronics Co., Ltd.

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

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

Abstract: A method and apparatus are provided for controlling power in a wireless power transmission/reception system. The method includes receiving power information from a receiver within a charging area; determining whether power is available for the receiver based on the power information; if the power is available for the receiver, transmitting, to the receiver, a first response requesting the receiver to perform charging; and if the power is not available for the receiver, transmitting, to the receiver, a second response requesting the receiver to maintain a standby state

公开(公告)号：US20180351410A1

公开(公告)日：2018-12-06

申请号：US16042603

申请日：2018-07-23

Applicant: Samsung Electronics Co., Ltd.

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

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

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025 ,  H02J50/60 ,  H02J50/80 ,  H02J2007/0096 ,  H02J2007/0098 ,  H04B5/0037 ,  H04B5/0075

Abstract: Methods and apparatuses for performing wireless charging are disclosed. One of the disclosed apparatuses is a wireless power receiver which can receive charging power from a wireless power transmitter. When the wireless power receiver receives, through a power receiving circuit, from a wireless power transmitter, a first power for initiating a communication unit; establishes a communication connection with the wireless power transmitter while receiving the first power; performs, by the communication unit, communication with the wireless power transmitter; receives, through the power receiving circuit, from the wireless power transmitter, a second power for charging; transmits, by the communication unit, to the wireless power transmitter, a message indicating a mode transition of the communication unit; terminates the communication with the wireless power transmitter; performs the mode transition for a time period while receiving the second power; and resumes the communication with the wireless power transmitter, after performing the mode transition.

公开(公告)号：US20180226844A1

公开(公告)日：2018-08-09

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: H02J50/90 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J7/02 ,  G01R31/00 ,  H02J50/80

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：US20180006486A1

公开(公告)日：2018-01-04

申请号：US15704885

申请日：2017-09-14

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: H02J7/02 ,  H02J5/00 ,  H02J7/00

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/0047 ,  H02J7/025 ,  H02J50/40 ,  H02J50/80 ,  H02J2007/005

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：US09787365B2

公开(公告)日：2017-10-10

申请号：US14627710

申请日：2015-02-20

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H02J7/00 ,  H04B5/00 ,  H02J7/02

CPC classification number: H04B5/0037 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80

Abstract: A method of preventing an abnormality during wireless charging is provided. The method includes transmitting wireless charging power to a plurality of wireless power receivers based on a first power value determined according to a first mode by a wireless power transmitter, determining whether the wireless power transmitter or at least one of the plurality of wireless power receivers satisfies an abnormality occurrence condition, and if the abnormality occurrence condition is satisfied, transmitting wireless charging power to the plurality of wireless power receivers based on a second power value determined according to a second mode by the wireless power transmitter.