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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
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kyung-Woo Lee , Hee-Won Jung , Keum-Su Song
Abstract: 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：US10075020B2
公开(公告)日：2018-09-11
申请号：US14748977
申请日：2015-06-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kyung-Woo Lee , Keum-Su Song , Hee-Won Jung
Abstract: A method of transmitting a signal by a wireless power transmitter in a wireless charging system, wireless power transmitter, and a wireless power receiver are provided. The method includes transmitting a first signal; transmitting a second signal; detecting a load change during a period in which the second signal is transmitted; and extending a transmission period of the second signal based on the detected load change. The wireless power transmitter includes a power transmission unit configured to transmit a first signal and a second signal; a sensing unit configured to detect a load change during a period in which the second signal is transmitted; and a controller configured to extend a transmission period of the second signal based on the detected load change.
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公开(公告)号：US09966787B2
公开(公告)日：2018-05-08
申请号：US14987575
申请日：2016-01-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Keum-Su Song , Do-Won Kim , Sung-Bum Park , Jae-Hyun Park
CPC classification number: H02J7/025 , G02B27/0176 , G02B2027/0178 , H02J7/0042 , H02J50/12
Abstract: Disclosed is an electronic device including a resonator that generates an induced current by electromagnetic coupling. The resonator includes a first conductor, a plurality of second conductors, a one end of each of the second conductors being electrically coupled to a first point of the first conductor, and an other end of each of the second conductors being electrically coupled to a second point of the first conductor, and at least one impedance load connected with the second conductors in series or in parallel. Thus, the resonator may generate current through the first and second conductors.
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公开(公告)号：US09853481B2
公开(公告)日：2017-12-26
申请号：US14626500
申请日：2015-02-19
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kyung-Woo Lee , Chong-Min Lee , Hee-Won Jung , Keum-Su Song
IPC: H02J17/00 , H02J7/02 , G01R21/133 , H02J7/00 , H02J50/10 , H02J50/80 , G01R19/165
CPC classification number: H02J50/12 , G01R19/16538 , G01R21/133 , H02J7/0054 , H02J7/02 , H02J7/025 , H02J50/10 , H02J50/40 , H02J50/80 , H02J50/90
Abstract: A method for detecting a load in wireless charging is provided. The method includes storing predetermined transmission signal waveform information, transmitting a signal according to the predetermined transmission signal waveform information, detecting a waveform change in the transmitted signal, and determining whether a device exists based on the detected waveform change.
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公开(公告)号：US20150236757A1
公开(公告)日：2015-08-20
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
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.
Abstract translation: 提供一种防止无线充电期间异常的方法。 该方法包括：基于由无线电力发射机根据第一模式确定的第一功率值向多个无线功率接收机发送无线充电功率，确定无线功率发射机或多个无线功率接收机中的至少一个是否满足 异常发生状态，并且如果满足异常发生条件，则基于由无线电力发送器根据第二模式确定的第二功率值向多个无线电力接收器发送无线充电电力。
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Patent Agency Ranking
公开(公告)号：US11336124B2
公开(公告)日：2022-05-17
申请号：US17184160
申请日：2021-02-24
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyung-Woo Lee , Keum-Su Song , Hee-Won Jung
Abstract: A method of transmitting a signal by a wireless power transmitter in a wireless charging system, wireless power transmitter, and a wireless power receiver are provided. The method includes receiving, from a wireless power transmitter, a first beacon power for a first duration time in every first period; receiving, from the wireless power transmitter, a second beacon power for a second duration time in every second period; if the wireless power receiver determines that an extension of the second beacon power is required, generating load changes while receiving the second beacon power for the second duration time; in response to the generated load changes, continually receiving, from the wireless power transmitter, the second beacon power until a predetermined third duration time, wherein the predetermined third duration time is determined before the second beacon power is transmitted by the wireless power transmitter; and transmitting an advertisement signal to the wireless power transmitter while receiving the second beacon power for the predetermined third duration time.
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公开(公告)号：US10978915B2
公开(公告)日：2021-04-13
申请号：US16489012
申请日：2018-02-01
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kwang-Seob Kim , Dong-Zo Kim , Ji-Won Kim , Keum-Su Song , Min-Cheol Ha , Jong-Chul Hong , Se-Hyun Cho
Abstract: A wireless power transmission apparatus according to various embodiments of the present invention may comprise: a power provision circuit for providing direct current (DC) power; a first conductive pattern; a second conductive pattern; multiple first switches connected to one end of the first conductive pattern and one end of the second conductive pattern; multiple second switches connected to the other end of the first conductive pattern; multiple third switches connected to the other end of the second conductive pattern; and a control circuit, wherein the control circuit controls the multiple first switches and the multiple second switches to convert the DC power into first alternating current (AC) power and apply the first AC power to the first conductive pattern and control the multiple first switches and the multiple third switches to convert the DC power into second AC power and apply the second AC power to the second conductive pattern. Various other embodiments are possible.
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公开(公告)号：US10944294B2
公开(公告)日：2021-03-09
申请号：US16852844
申请日：2020-04-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyung-Woo Lee , Keum-Su Song , Hee-Won Jung
Abstract: A method of transmitting a signal by a wireless power transmitter in a wireless charging system, wireless power transmitter, and a wireless power receiver are provided. The method includes receiving, from a wireless power transmitter, a first beacon power for a first duration time in every first period; receiving, from the wireless power transmitter, a second beacon power for a second duration time in every second period; if the wireless power receiver determines that an extension of the second beacon power is required, generating load changes while receiving the second beacon power for the second duration time; in response to the generated load changes, continually receiving, from the wireless power transmitter, the second beacon power until a predetermined third duration time, wherein the predetermined third duration time is determined before the second beacon power is transmitted by the wireless power transmitter; and transmitting an advertisement signal to the wireless power transmitter while receiving the second beacon power for the predetermined third duration time.
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公开(公告)号：US10931145B2
公开(公告)日：2021-02-23
申请号：US15138886
申请日：2016-04-26
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sung-Bum Park , Dong-Zo Kim , Keum-Su Song
Abstract: A wireless power receiver is provided. The wireless power receiver includes a substrate partitioned into a first area and a second area neighboring the first area, a circuit portion mounted in the first area of the substrate and including a receiving module, a resonance pattern portion directly provided on at least one surface of the substrate in the second area, and a shield mounted on a surface of the substrate in the second area.
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公开(公告)号：US20200251933A1
公开(公告)日：2020-08-06
申请号：US16852844
申请日：2020-04-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyung-Woo Lee , Keum-Su Song , Hee-Won Jung
Abstract: A method of transmitting a signal by a wireless power transmitter in a wireless charging system, wireless power transmitter, and a wireless power receiver are provided. The method includes receiving, from a wireless power transmitter, a first beacon power for a first duration time in every first period; receiving, from the wireless power transmitter, a second beacon power for a second duration time in every second period; if the wireless power receiver determines that an extension of the second beacon power is required, generating load changes while receiving the second beacon power for the second duration time; in response to the generated load changes, continually receiving, from the wireless power transmitter, the second beacon power until a predetermined third duration time, wherein the predetermined third duration time is determined before the second beacon power is transmitted by the wireless power transmitter; and transmitting an advertisement signal to the wireless power transmitter while receiving the second beacon power for the predetermined third duration time.
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