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公开(公告)号：US10554071B2
公开(公告)日：2020-02-04
申请号：US16298534
申请日：2019-03-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Nam Yun Kim , Sang Wook Kwon
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：US20190273399A1
公开(公告)日：2019-09-05
申请号：US16411756
申请日：2019-05-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Keum Su SONG , Sang Wook Kwon , Ki Young Kim , Yun Kwon Park , Jae Hyun Park , Chi Hyung AHN , Young Ho RYU
Abstract: A wireless power transmission apparatus includes resonators configured to transmit a power wirelessly to another resonator, and a controller configured to control a current magnitude and/or a voltage magnitude of a power to be provided to each of the resonators. The apparatus further includes a feeder configured to provide the power to each of the resonators.
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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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Patent Agency Ranking
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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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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