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公开(公告)号：US20190207410A1
公开(公告)日：2019-07-04
申请号：US16298534
申请日：2019-03-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Nam Yun Kim , Sang Wook Kwon
CPC classification number: H02J7/025 , H02J5/005 , H02J7/04 , H02J50/12 , H02J50/40 , H02J50/80 , H04B5/0037 , H04B5/0093
Abstract: A portable device is provided. The portable device includes a power receiving unit configured to receive a first energy or a second energy from a wireless power transmitter, the first energy being used to perform a communication function and a control function, the second energy being used to charge a battery, and the wireless power transmitter being configured to wirelessly transmit a power, a voltage generator configured to generate a wake-up voltage from the first energy, or to generate a voltage for charging the battery from the second energy, a controller configured to perform the communication function and the control function, the controller being activated by the wake-up voltage, and a communication unit configured to perform a communication with the wireless power transmitter based on a control of the controller.
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公开(公告)号：US10277079B2
公开(公告)日：2019-04-30
申请号：US15054824
申请日：2016-02-26
Applicant: Samsung Electronics Co., Ltd.
Inventor： Nam Yun Kim , Young Tack Hong , Sang Wook Kwon , Yun Kwon Park , Ki Young Kim , Young Ho Ryu , Dong Zo Kim , Jin Sung Chol , Chang Wook Yoon
Abstract: An electronic device and method for transmitting and receiving a wireless power are provided. An electronic device for transmitting and receiving wireless power may include a resonator configured to operate, based on a plurality of operating modes of the electronic device including a power reception mode, a relay mode, and a power transmission mode, wherein: (i) in the power reception mode, the resonator is configured to receive power from a wireless power transmitter, (ii) in the relay mode, the resonator is configured to relay power received from the wireless power transmitter to a wireless power receiver, and (iii) in the power transmission mode, the resonator is configured to transmit power to the wireless power receiver; and a path controller configured to control at least one electrical pathway of electronic device based on the operating mode.
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公开(公告)号：US10205353B2
公开(公告)日：2019-02-12
申请号：US15708202
申请日：2017-09-19
Applicant: SAMSUNG ELECTRONICS CO., LTD. , IUCF-HYU(Industry-University Cooperation Foundation Hanyang University)
Inventor： Dong Zo Kim , Sang Wook Kwon , Ki Young Kim , Nam Yun Kim , Young Jin Moon , Yun Kwon Park , Keum Su Song , Chi Hyung Ahn , Young Ho Ryu , Chang Sik Yoo , Chang Wook Yoon , Jin Sung Choi
Abstract: An apparatus and a method for charge control are provided. The apparatus for charge control may include an integrated direct current-to-direct current (DC/DC) converter configured to step up an output voltage level of a load to be greater than or equal to a supply voltage level set in a power amplifier, and the power amplifier configured to convert a direct current (DC) voltage stepped up by the integrated DC/DC converter into an alternating current (AC) voltage based on a resonant frequency, and to amplify the converted AC voltage. The apparatus for charge control may include a rectification unit configured to convert an AC power received wirelessly into a DC power; and a DC/DC converter configured to step down a voltage level of the DC power to a voltage level required by a load in the receiving mode.
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公开(公告)号：US10038476B2
公开(公告)日：2018-07-31
申请号：US14929811
申请日：2015-11-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Nam Yun Kim , Sang Wook Kwon , Yun Kwon Park , Eun Seok Park , Young Tack Hong , Ki Young Kim , Young Ho Ryu , Dong Zo Kim , Jin Sung Choi , Chang Wook Yoon
CPC classification number: H04B5/0037 , H02M7/04 , H03F3/04 , H04B5/0031 , H04B5/0081
Abstract: An apparatus and method for communication using a wireless power are provided. The apparatus includes an amplifier configured to amplify an input signal based on a power supplied to the amplifier. The apparatus further includes a control unit configured to detect a change in an impedance of a target device, and to change the power based on the change in the impedance. The apparatus further includes a demodulation unit configured to receive a message from the target device, and to demodulate the message based on the changed power.
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公开(公告)号：US09997959B2
公开(公告)日：2018-06-12
申请号：US13742992
申请日：2013-01-16
Applicant: Samsung Electronics Co., LTD.
Inventor： Ki Young Kim , Eun Seok Park , Young Ho Ryu , Sang Wook Kwon , Nam Yun Kim , Dong Zo Kim , Yun Kwon Park , Chang Wook Yoon , Jin Sung Choi , Young Tack Hong
Abstract: A wireless power transmission system and a method for increasing a coupling efficiency by adjusting a resonant frequency are provided. A device of the wireless power transmission system includes a resonator configured to transmit a wireless power, and a communication unit configured to receive information from another device. The device further includes a controller configured to determine a power transmission efficiency based on the information, and adjust a resonant frequency of the device, a resonant frequency of a relay device, and a resonant frequency of the other device, if the power transmission efficiency is less than or equal to a predetermined reference efficiency.
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Patent Agency Ranking
公开(公告)号：US09984814B2
公开(公告)日：2018-05-29
申请号：US13938671
申请日：2013-07-10
Applicant: Samsung Electronics Co., Ltd.
Inventor： Keum Su Song , Sang Wook Kwon , Ki Young Kim , Nam Yun Kim , Dong Zo Kim , Yun Kwon Park , Eun Seok Park , Chi Hyung Ahn , Young Ho Ryu , Chang Wook Yoon , Jin Sung Choi
CPC classification number: H01F38/14 , H01F2021/125 , H02J5/005 , H02J7/025 , H02J50/12 , H02J50/40 , H02J50/90 , H02J2007/0096
Abstract: A wireless power transmitter includes a source resonator configured to wirelessly transmit power via magnetic coupling with a target resonator; and an impedance adjusting unit configured to adjust an impedance of the source resonator using a plurality of impedance-matching bars located in the source resonator.
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公开(公告)号：US09966799B2
公开(公告)日：2018-05-08
申请号：US14796102
申请日：2015-07-10
Applicant: Samsung Electronics Co., Ltd
Inventor： Dong Zo Kim , Sang Wook Kwon , Yun Kwon Park , Eun Seok Park , Young Tack Hong , Ki Young Kim , Young Ho Ryu , Nam Yun Kim , Jin Sung Choi , Chang Wook Yoon
IPC: H02J5/00 , H02J17/00 , H02J7/02 , H02J50/12 , H02J50/80 , H02J50/70 , H02J50/90 , H02H3/08 , H02H3/20 , H02H5/04
CPC classification number: H02J50/12 , H02H3/08 , H02H3/20 , H02H5/042 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/70 , H02J50/80 , H02J50/90
Abstract: An overvoltage protecting unit and an overcurrent protecting unit protect a power device from an overvoltage and an overcurrent using a comparator having hysteresis. An overtemperature protecting unit protects the power device from an overtemperature using a thermistor having a resistance that changes as a temperature of the thermistor changes.
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公开(公告)号：US09935496B2
公开(公告)日：2018-04-03
申请号：US13742992
申请日：2013-01-16
Applicant: Samsung Electronics Co., LTD.
Inventor： Ki Young Kim , Eun Seok Park , Young Ho Ryu , Sang Wook Kwon , Nam Yun Kim , Dong Zo Kim , Yun Kwon Park , Chang Wook Yoon , Jin Sung Choi , Young Tack Hong
Abstract: A wireless power transmission system and a method for increasing a coupling efficiency by adjusting a resonant frequency are provided. A device of the wireless power transmission system includes a resonator configured to transmit a wireless power, and a communication unit configured to receive information from another device. The device further includes a controller configured to determine a power transmission efficiency based on the information, and adjust a resonant frequency of the device, a resonant frequency of a relay device, and a resonant frequency of the other device, if the power transmission efficiency is less than or equal to a predetermined reference efficiency.
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公开(公告)号：US09729013B2
公开(公告)日：2017-08-08
申请号：US14597503
申请日：2015-01-15
Applicant: Samsung Electronics Co., Ltd.
Inventor： Nam Yun Kim , Sang Wook Kwon , Yun Kwon Park
CPC classification number: H02J50/12 , G01R23/04 , G01R27/04 , H02J5/005 , H02J7/0027 , H02J7/0044 , H02J7/025 , H02J17/00 , H02J50/40 , H02J50/80 , H02J50/90
Abstract: A wireless power transmission system, and a method for controlling wireless power transmission and wireless power reception are provided. According to an aspect, a method for controlling a wireless power transmission may include: detecting a plurality of target devices used to wirelessly receive power; selecting a source resonating unit from among a plurality of source resonating units, based on the amount of power to be transmitted to one or more of the plurality of target devices, a coupling factor associated with one or more of the plurality of target devices, or both; and wirelessly transmitting power to a target device using the selected source resonating unit.
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公开(公告)号：US09627930B2
公开(公告)日：2017-04-18
申请号：US14954121
申请日：2015-11-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Nam Yun Kim , Sang Wook Kwon , Yun Kwon Park , Young Tack Hong
CPC classification number: H02J50/12 , B60L11/182 , H02J7/007 , H02J7/025 , H02J50/80 , Y02T10/7005 , Y02T10/7072 , Y02T90/122 , Y02T90/14
Abstract: A method and apparatus for controlling wireless power transmission are provided. An output power of a source device may be wirelessly transmitted to a target device via a resonator. The source device may detect a change in a current of the output power, and may request the target device to verify a state of the target device. The source device may determine a state of a wireless power transmission based on the change in the current and the state of the target device. The source device may control wireless power transmission based on the determined state of the wireless power transmission.
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