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公开(公告)号：US11641221B2
公开(公告)日：2023-05-02
申请号：US16548345
申请日：2019-08-22
发明人： Kyung-Woo Lee , Sang-Wook Kwon , Sung-Kweon Park
摘要： A wireless power receiver, and control methods thereof are provided. The wireless power receiver includes a communication module; and a controller. The controller is configured to identify whether a near-field communication (NFC) tag is detected, wherein the NFC tag is external to a wireless power transmitter and the wireless power receiver, and transmit, by using the communication module, a signal indicating whether the NFC tag is detected to the wireless power transmitter.
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公开(公告)号：US11228206B2
公开(公告)日：2022-01-18
申请号：US17031951
申请日：2020-09-25
发明人： Kyung-Woo Lee , Kang-Ho Byun , Seho Park
摘要： A wireless power transmitter and method are provided for transmitting charging power to a wireless power receiver. The method includes transmitting, to the wireless power receiver, a control signal including first time information and load change information; detecting a load change of the wireless power receiver during a period of time corresponding to the first time information; and determining that the wireless power receiver is authorized for charging, if the detected load change of the wireless power receiver corresponds to the load change information included in the control signal.
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公开(公告)号：US11159050B2
公开(公告)日：2021-10-26
申请号：US17007511
申请日：2020-08-31
发明人： Hyuk-Choon Kwon , Ho-Dong Kim , Kyung-Woo Lee , Kang-Ho Byun , Hee-Won Jung
摘要： 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.
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公开(公告)号：US11011946B2
公开(公告)日：2021-05-18
申请号：US16317672
申请日：2017-07-11
发明人： Kyung-Woo Lee , Hee-Won Jung , Sang-Wook Kwon , Kang-Ho Byun
摘要： A method for controlling a wireless power transmitter for charging a wireless power receiver may comprise the operations of: transmitting power for charging; receiving a first PRU dynamic signal indicating completion of charging, from the wireless power receiver, applying a beacon for detecting the wireless power receiver on the basis of a load change to a resonance circuit of the wireless power transmitter; receiving, from the wireless power receiver, a first advertisement signal including information indicating that charging is not requested; and ignoring the advertisement signal and maintaining application of the beacon.
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公开(公告)号：US10998936B2
公开(公告)日：2021-05-04
申请号：US16799224
申请日：2020-02-24
发明人： Kyung-Woo Lee , Hee-Won Jung , Keum-Su Song
摘要： Disclosed is a control method of a wireless power transmitter, including transmitting power to a plurality of wireless power receivers based on a first power value required by a first wireless power receiver from among the plurality of wireless power receivers, and before reaching a threshold condition in which a system error occurs in the wireless power transmitter, transmitting a power adjust command to reduce the power to a lower percentage of a maximum received power level, to at least one wireless power receiver from among the plurality of wireless power receivers, wherein the power adjust command is a control command for reducing power consumption of the at least one wireless power receiver from among the plurality of wireless power receivers, and wherein the system error comprises at least one of an over-temperature error, an over-current error, and an over-voltage error.
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公开(公告)号：US10790694B2
公开(公告)日：2020-09-29
申请号：US16384419
申请日：2019-04-15
发明人： Hyuk-Choon Kwon , Ho-Dong Kim , Kyung-Woo Lee , Kang-Ho Byun , Hee-Won Jung
摘要： 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.
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公开(公告)号：US20200287422A1
公开(公告)日：2020-09-10
申请号：US16883660
申请日：2020-05-26
发明人： Kang-Ho Byun , Kyung-Woo Lee , Young-Min Lee , Se-Ho Park , Yu-Su Kim , Sung-Ku Yeo
摘要： 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.
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公开(公告)号：US10554051B2
公开(公告)日：2020-02-04
申请号：US15704768
申请日：2017-09-14
发明人： Kyung-Woo Lee , Kang-Ho Byun , Se-Ho Park
摘要： 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.
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公开(公告)号：US10439450B2
公开(公告)日：2019-10-08
申请号：US15474747
申请日：2017-03-30
发明人： Chong-Min Lee , Kyung-Woo Lee , Sung-Bum Park , Jae-Hyun Park , Jae-Hyuck Shin , Young-Ho Ryu , Sang-Wook Lee
IPC分类号： H04L5/00 , G01S13/42 , H02J50/90 , H02J50/80 , H02J50/20 , H02J7/02 , H04W8/00 , H02J50/60 , G01S7/41
摘要： A wireless power transmitting device is provided. The wireless power transmitting device may comprise an antenna, a memory, and a processor configured to control to store, as reference information, information of a first reflected signal of a pilot signal sent out through the antenna at a first time in the memory and control to compare the reference information with information about second reflected signals of a pilot signal sent out through the antenna at a second time, and determine a position of a target for detection based on a result of the comparison.
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10.发明授权公开(公告)号：US10218206B2
公开(公告)日：2019-02-26
申请号：US14906200
申请日：2014-07-18
发明人： Kyung-Woo Lee , Kang-Ho Byun , Hee-Won Jung
IPC分类号： H02J50/80 , H02J7/02 , H02J50/12 , H02J17/00 , H02J7/04 , H02J50/10 , H02J50/40 , H02J50/60 , H02J7/00
摘要： The present disclosure relates to a charging voltage configuring method for wireless charging to control a charging voltage of a wireless power reception unit in a wireless charging network. A charging voltage configuration method for wireless charging by a wireless Power Reception Unit (PRU) which receives wireless charging power from a wireless Power Transmission Unit (PTU) according to the present disclosure may include: measuring charging power received from the wireless power reception unit; when the measured charging power is smaller than a minimum power level for charging initiation or a difference between the measured charging power and the minimum power level is within a predetermined range, determining a voltage configuration value upwardly adjusted by a pre-configured level in comparison with a pre-configured voltage configuration value; and transmitting the determined voltage configuration value to the wireless power transmission unit.
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