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公开(公告)号：US11862990B2
公开(公告)日：2024-01-02
申请号：US17178707
申请日：2021-02-18
发明人： Wooram Lee , Dohyeon Kim , Seho Park , Mingi Song
CPC分类号： H02J50/402 , H02J50/12 , H02J50/80 , H02J2310/22
摘要： A wireless charging device is provided and includes a first inverter, a first switch electrically connected to the first inverter, a second inverter, a second switch electrically connected to the second inverter, a first coil group connected to the first inverter through the first switch, a second coil group connected to the second inverter through the second switch, and a processor operatively connected to the first inverter, the first switch, the second inverter, the second switch, the first coil group, and the second coil group. The processor detects an electronic device disposed above the wireless charging device through at least one coil in the first coil group or the second coil group, and to wirelessly transmit power to the electronic device by using one coil in the first coil group and one coil in the second coil group.
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公开(公告)号：US11337215B2
公开(公告)日：2022-05-17
申请号：US16870243
申请日：2020-05-08
发明人： Byunghwa Park , Seho Park , Dongyoung Lee , Kwangyeol Lee , Yongyoun Kim , Yongsang Yun , Chihyun Cho
摘要： An electronic device and method of operating an electronic device are provided. The method includes receiving a wireless charging request from an external electronic device while wireless communication with the external electronic device is performed through a communication circuit of the electronic device, identifying a second frequency, based on a first frequency being used by the wireless communication circuit for the wireless communication, in response to the wireless charging request, and transmitting wireless power to the external electronic device, based on the identified second frequency through a wireless charging circuit of the electronic device while wireless communication with the external electronic device is performed.
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公开(公告)号：US10958094B2
公开(公告)日：2021-03-23
申请号：US16263397
申请日：2019-01-31
发明人： Byungyeol Choi , Seho Park , Yusu Kim , Kyungmin Park , Wooram Lee , Juhyang Lee , Yongsang Yun , Chihyun Cho
摘要： An electronic device and a method for controlling the operation of the electronic device are provided. The electronic device includes a wireless power reception circuit, a wireless communication circuit, and a processor configured to control to receive first identity information through a first in-band communication channel using the wireless power reception circuit, establish a first out-of-band communication channel based on the first identity information while the first in-band communication channel is established, receive second identity information through a second in-band communication channel while the first out-of-band communication channel is established, disconnect, when the first out-of-band communication channel is established while the second in-band communication channel is established, the first out-of-band communication channel, and establish a second out-of-band communication channel automatically based on the second identity information.
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公开(公告)号：US10938239B2
公开(公告)日：2021-03-02
申请号：US16371690
申请日：2019-04-01
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：US10790701B2
公开(公告)日：2020-09-29
申请号：US14155922
申请日：2014-01-15
发明人： Kyung-Woo Lee , Kang-Ho Byun , Seho Park
摘要： A wireless power transmitter and a method for operating the wireless power transmitter are provided, which transmit charging power to a wireless power receiver. A control signal is provided that includes time information and load change information, and a load change of the wireless power receiver is detected during a period of time corresponding to the first time information. If the detected load change of the wireless power receiver corresponds to the load change information included in the control signal, a determination is made that the wireless power receiver is admitted for charging.
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公开(公告)号：US11881724B2
公开(公告)日：2024-01-23
申请号：US17198370
申请日：2021-03-11
发明人： Mingi Song , Dohyeon Kim , Seho Park , Wooram Lee
CPC分类号： H02J50/402 , H02J50/12 , H02J50/60 , H02J50/80 , H02J2310/22
摘要： Provided are a wireless charging device and method. The wireless charging device may include: a first group of coils; a second group of coils; and a processor. The processor may be configured to: transmit a first ping signal through the first group of coils and the second group of coils; sense a change in current, voltage, and/or frequency occurring in the first group of coils and the second group of coils in response to the first ping signal to detect that an electronic device is placed on the wireless charging device; select at least one coil from the first group of coils and at least one coil from the second group of coils at which the change is sensed; transmit a second ping signal through the selected coils; and wirelessly transmit power to the electronic device by using the selected coils. Various other embodiments are also disclosed.
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公开(公告)号：US11843256B2
公开(公告)日：2023-12-12
申请号：US17867016
申请日：2022-07-18
发明人： Yusu Kim , Dohyeon Kim , Byunghwa Park , Seho Park , Wooram Lee , Hyungkoo Chung
CPC分类号： H02J50/10 , H01F27/402 , H05K1/189 , H01F2027/406 , H05K2201/10151
摘要： A wireless power transmission apparatus is provided. The wireless power transmission apparatus includes an upper housing, a lower housing coupled to the upper housing, a substrate disposed between the upper housing and the lower housing, a transmit coil disposed between the upper housing and the substrate and formed by being wound in the form of rotating on the substrate, at least one temperature sensor including a pattern resistor, a resistance numerical value which varies with temperature, and a flexible printed circuit board (FPCB) on which the at least one temperature sensor is disposed. The pattern resistor is disposed on the FPCB in a pattern of being wound in a first direction from any first point on the FPCB to any second point different from the any first point on the FPCB around a central portion of the FPCB and being rewound in a second direction opposite to the first direction.
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公开(公告)号：US11451074B2
公开(公告)日：2022-09-20
申请号：US16880260
申请日：2020-05-21
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：US11296518B2
公开(公告)日：2022-04-05
申请号：US16834539
申请日：2020-03-30
发明人： Seho Park , Kisun Lee , Kyusik Choi
摘要： An electronic device includes a housing, a display exposed through one surface of the housing, at least one ground member, a first battery disposed in the housing and including a first anode and a first cathode, a second battery disposed in the housing and including a second anode and a second cathode electrically connected with the at least one ground member, a charging circuit electrically connected with the first battery and the second battery, a charging interface electrically connected with the charging circuit, and a power management integrated circuit electrically connected with the charging interface and the charging circuit and managing power supplied to the electronic device. When an external power source is connected through the charging interface, the charging circuit connects the first battery and the second battery in series during a first time period and connects the first battery and the second battery in parallel during a second time period.
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公开(公告)号：US11177681B2
公开(公告)日：2021-11-16
申请号：US16663733
申请日：2019-10-25
发明人： Kyoungwon Kim , Yusu Kim , Kisun Lee , Minjung Park , Seho Park , Hangseok Choi , Yongsang Yun , Chihyun Cho
摘要： An electronic device according to various embodiments may include: a coil configured to receive a signal for wirelessly obtaining power from an external electronic device; a wireless power circuit (MFC) configured to output the signal received by the coil as a DC signal; a first capacitive voltage divider circuit configured to adjust the voltage of, and to output, power according to a first voltage division ratio; a second capacitive voltage divider circuit configured to adjust the voltage of, and to output, power according to a second voltage division ratio; a controller configured to control the electronic device to provide the DC signal to at least one capacitive voltage divider circuit among the first capacitive voltage divider circuit and the second capacitive voltage divider circuit, based on a voltage value of the signal received through the coil; and a battery configured to receive another signal output from the at least one capacitive voltage divider circuit, based on the provided DC signal, thereby obtaining power.
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