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公开(公告)号：US20230146752A1
公开(公告)日：2023-05-11
申请号：US18153049
申请日：2023-01-11
发明人： Dongzo KIM , Mincheol HA , Kihyun KIM , Yunjeong NOH , Keyic SON , Taehyeon YU , Hyungkoo CHUNG
CPC分类号： H01F27/2885 , H02J50/402 , H02J50/70 , H02J50/10 , H02J50/005 , H01F27/2823
摘要： A wireless power transmission apparatus is provided. The wireless power transmission apparatus includes a first coil including a first conductive wire area formed of an arrangement of conductive wires, and a first opening area surrounded by the first conductive wire area, a second coil including a second conductive wire area formed of an arrangement of conductive wires, and a second opening area surrounded by the second conductive wire area, a first overlapping area formed by overlapping a portion of the first conductive wire area with a portion of the second opening area, and a first shielding member disposed on at least a portion of the first overlapping area, wherein the first shielding member may be configured to at least partially block an electromagnetic field generated by the second coil interfering in the first conductive wire area.
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公开(公告)号：US20210036550A1
公开(公告)日：2021-02-04
申请号：US16929581
申请日：2020-07-15
发明人： Mincheol HA , Kwangseob KIM , Kihyun KIM , Dongzo KIM , Jihye KIM , Yunjeong NOH , Changhak O , Kyungmin LEE , Hyungkoo CHUNG
摘要： An electronic device according to an embodiment may include: a wireless charging coil; a power transmission circuit configured to be electrically connected to the wireless charging coil; a wireless communication circuit configured to communicate with an external electronic device; and a control circuit. The control circuit may be configured to: transmit power to an external electronic device; obtain data corresponding to power received by the external electronic device in response to the transmitted power using the wireless communication circuit; obtain power loss based on the obtained data; stop transmitting the power to the external electronic device when the power loss exceeds a first threshold; and stop transmitting the power to the external electronic device according to whether an event related the power loss occurs even when the power loss is lower than the first threshold.
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公开(公告)号：US20190305580A1
公开(公告)日：2019-10-03
申请号：US16442963
申请日：2019-06-17
发明人： Wooram LEE , Seho PARK , Kihyun KIM , Jihye KIM , Yunjeong NOH , Kumjong SUN , Mincheol HA , Sangmoo HWANGBO
摘要： An electronic device and a method thereof, which supports fast wireless charging, are provided. The electronic device includes a wireless power circuit, and one or more processors which are functionally connected with the wireless power circuit, wherein the one or more processors are configured to execute detecting an external electronic device through the wireless power circuit, determining wireless power information corresponding to the external electronic device, determining whether the external electronic device supports a first charging power or a second charging power, at least partially based on the wireless power information, providing the first charging power to the external electronic device through the wireless power circuit, at least partially based on the determination that the external electronic device supports the first charging power, and providing the second charging power to the external electronic device through the wireless power circuit, at least partially based on the determination that the external electronic device supports the second charging power.
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公开(公告)号：US20230361598A1
公开(公告)日：2023-11-09
申请号：US18351848
申请日：2023-07-13
发明人： Keyic SON , Kihyun KIM , Dongzo KIM , Jihye KIM , Yunjeong NOH , Taehyeon YU , Kyungmin LEE , Hyungkoo CHUNG , Mincheol HA
CPC分类号： H02J50/10 , H02J50/90 , H02J50/80 , H04W52/0251
摘要： An electronic device is provided. The electronic device includes a wireless transmission circuit for transmitting power to a power reception device, and a first processor. When entering a power reduction mode, with respect to a first voltage and a first current being output from the wireless transmission circuit, the first processor includes, in case that the power reception device is in an align state, lower a voltage of the wireless transmission circuit to a second voltage lower than the first voltage and lower a current flowing in the electronic device to a second current lower than the first current, and, in case that the power reception device is in a misalign state, lower a voltage of the electronic device to a third voltage lower than the second voltage and lower a current flowing in the wireless communication circuit to a third current lower than the second current.
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公开(公告)号：US20230216353A1
公开(公告)日：2023-07-06
申请号：US18119543
申请日：2023-03-09
发明人： Mincheol HA , Kihyun KIM , Dongzo KIM , Jihye KIM , Yunjeong NOH , Keyic SON , Taehyeon YU , Kyungmin LEE , Hyungkoo CHUNG
CPC分类号： H02J50/402 , H02J50/12 , H02J50/90 , H02M1/0003
摘要： An electronic device includes a plurality of coils, power conversion circuits, demodulation switches, and a processor. The power conversion circuits convert DC power into AC power, and output the AC power to the plurality of coils, respectively. The demodulation switches selectively connect the plurality of coils to ground. The processor selects at least one coil from among the plurality of coils, and controls an on/off state of the demodulation switches to connect or disconnect at least one remaining coil except for the selected at least one coil among the plurality of coils to the ground. The processor controls the power conversion circuits to output the AC power to the selected at least one coil and demodulates a signal of the selected at least one coil to identify information from an external electronic device disposed adjacent to a selected at least one coil based on the demodulation.
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公开(公告)号：US20230179028A1
公开(公告)日：2023-06-08
申请号：US18094066
申请日：2023-01-06
发明人： Hyungkoo CHUNG , Dongzo KIM , Mincheol HA , Yusu KIM , Kihyun KIM , Yunjeong NOH , Keyic SON , Taehyeon YU , Kyungmin LEE
摘要： An electronic device capable of transmitting and receiving wireless power may include a wireless power transfer (WPT) coil and a processor configured to be operatively connected to the WPT coil, wherein the processor may perform control to transmit a first ping signal to an external object through the WPT coil, may identify a waveform of a current or voltage measured while or after transmitting the first ping signal, may obtain a Q factor, based on the identified waveform, may control a power transmission operation by determining that the external object is a foreign object or includes the foreign object and is positioned on a center of the WPT coil when the obtained Q factor is less than a predetermined Q factor, may transmit a second ping signal to the external object through the WPT coil when the obtained Q factor is equal to or greater than the predetermined Q factor, may identify a waveform of a current or voltage while or after transmitting the second ping signal, may identify inductance measured at both ends of the WPT coil, based on the identified waveform, and may control the power transmission operation by determining that the external object is the foreign object or includes the foreign object and is positioned in a surrounding area of the WPT coil, based on the measured inductance.
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7.发明申请公开(公告)号：US20200251928A1
公开(公告)日：2020-08-06
申请号：US16640017
申请日：2018-04-11
发明人： Mincheol HA , Dongzo KIM , Ji-Won KIM , Jae-Wan PARK , Chang-Hak O , Jongchul HONG , Yong Sang YUN
摘要： According to various embodiments, provided is an electronic device, which comprises a housing and a relay circuit located inside the housing and is capable of receiving and/or retransmitting an electromagnetic field of an external electronic device, wherein the relay circuit is configured to form a resonant frequency higher than that of an operating frequency range of the electromagnetic field transmitted by the external electronic device. Additional various embodiments are possible.
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公开(公告)号：US20170047769A1
公开(公告)日：2017-02-16
申请号：US15202171
申请日：2016-07-05
发明人： Kihyun KIM , Kyungha KOO , Wooram LEE , Changhyung LEE , Jihye KIM , Jihong KIM , Yunjeong NOH , Seho PARK , Kumjong SUN , Ju-Hyang LEE , Mincheol HA , Sangmoo HWANGBO
CPC分类号： H02J7/025 , H02J7/0029 , H02J50/80
摘要： An electronic device is provided. The electronic device includes a housing, a wireless charging coil disposed inside the housing, a fan disposed inside the housing and in proximity to the coil, a temperature sensor disposed inside the housing and in proximity to the coil, a wireless charging circuit having the coil and configured to transmit power wirelessly to an external device via the coil, and a control circuit electrically connected to the fan, the temperature sensor, and the wireless charging circuit. The control circuit may be configured to receive a signal from the external device, receive data related to a temperature of the coil from the temperature sensor, and control the fan at least partially on the basis of at least one of the signal and the data.
摘要翻译： 提供电子设备。 电子设备包括壳体，设置在壳体内部的无线充电线圈，设置在壳体内并且靠近线圈的风扇，设置在壳体内部并且靠近线圈的温度传感器，具有线圈的无线充电电路 并被配置为经由线圈向外部设备无线地发送电力，以及电连接到风扇，温度传感器和无线充电电路的控制电路。 控制电路可以被配置为从外部设备接收信号，从温度传感器接收与线圈温度有关的数据，并且至少部分地基于信号和数据中的至少一个来控制风扇。
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公开(公告)号：US20220190609A1
公开(公告)日：2022-06-16
申请号：US17688269
申请日：2022-03-07
发明人： Kihyun KIM , Kyungha KOO , Wooram LEE , Changhyung LEE , Jihye KIM , Jihong KIM , Yunjeong NOH , Seho PARK , Kumjong SUN , Ju-Hyang LEE , Mincheol HA , Sangmoo HWANGBO
摘要： An electronic device is provided. The electronic device includes a housing, a wireless charging coil disposed inside the housing, a fan disposed inside the housing and in proximity to the coil, a temperature sensor disposed inside the housing and in proximity to the coil, a wireless charging circuit having the coil and configured to transmit power wirelessly to an external device via the coil, and a control circuit electrically connected to the fan, the temperature sensor, and the wireless charging circuit. The control circuit may be configured to receive a signal from the external device, receive data related to a temperature of the coil from the temperature sensor, and control the fan at least partially on the basis of at least one of the signal and the data.
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公开(公告)号：US20210143683A1
公开(公告)日：2021-05-13
申请号：US17057234
申请日：2019-07-02
发明人： Mincheol HA , Kwangseob KIM , Kihyun KIM , Dongzo KIM , Jiwon KIM , Jihye KIM , Yunjeong NOH , Keumsu SONG , Changhak O , Kyungmin LEE , Hyungkoo CHUNG , Jongchul HONG , Yongsang YUN
摘要： Various embodiments relating to an electronic device are disclosed, and according to an embodiment, the electronic device may comprise: a plurality of coils; a first power generation circuit electrically connected to at least one of the plurality of coils; a second power generation circuit electrically connected to at least one of the plurality of coils; and a control circuit, wherein when the approach of a second external electronic device is detected while first power is provided to a first external electronic device by using a first frequency via the first power generation circuit, the control circuit allows the frequency of the second power generation circuit to be configured to a second frequency different from a first frequency in order to provide second power to the second external electronic device. Other embodiments may be possible.
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