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11.发明申请公开(公告)号：US20230047559A1
公开(公告)日：2023-02-16
申请号：US17830840
申请日：2022-06-02
发明人： Yusu KIM , Seho PARK , Hyungkoo CHUNG , Dohyeon KIM , Byunghwa PARK , Wooram LEE
摘要： According to an embodiment, a wireless power transmitting device may include a transmission coil, a power providing circuit, and at least one controller. The at least one controller may be configured to control the power providing circuit to apply first power to the transmission coil, identify a resonant frequency, based on a voltage measured at the transmission coil in response to the first power applied to the transmission coil, based on a difference between the identified resonant frequency and a reference frequency meeting a designated condition, identify that a foreign object is placed on a charging area of the wireless power transmitting device, and based on the difference between the identified resonant frequency and the reference frequency failing to meet the designated condition, control the power providing circuit to apply, to the transmission coil, at least one second power for performing communication with a wireless power receiving device.
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公开(公告)号：US20220209581A1
公开(公告)日：2022-06-30
申请号：US17583773
申请日：2022-01-25
发明人： Yusu KIM , Dohyeon KIM , Seho PARK , Byunghwa PARK
摘要： An electronic device to which a wireless charging system is applied is provided. The electronic device includes a battery, a charging circuit, and a circuit board configured to be electrically connected to the charging circuit and include a first portion and a second portion disposed adjacent to the first portion, wherein a first coil, a second coil, and a resonance coil are disposed in the first portion of the circuit board, the first coil being disposed outside the second coil, and the resonance coil being disposed inside the second coil, and wherein a third coil and a resonance capacitor are disposed in the second portion of the circuit board, the resonance capacitor being disposed inside the third coil, and the resonance coil and the resonance capacitor being electrically connected to each other to generate a designated resonance.
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公开(公告)号：US20200266667A1
公开(公告)日：2020-08-20
申请号：US16794649
申请日：2020-02-19
发明人： Juhyang LEE , Kyungmin PARK , Yusu KIM , Hyundeok SEO , Hyunho LEE , Byungyeol CHOI , Chihyun CHO
摘要： An electronic device includes a display, a conductive coil, a wireless charging circuit electrically connected to the conductive coil, a power management circuit, a battery; and a processor, wherein the processor may be configured to control the electronic device to: measure a current flowing from the power management circuit to the wireless charging circuit while power is transferred to an external device through the conductive coil, and adjust the power transferred to the external device through the conductive coil based on a part of a power amount preset in a signal requesting addition of power based on a value of the current being between a first threshold value and a second threshold value greater than the first threshold value.
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公开(公告)号：US20200091780A1
公开(公告)日：2020-03-19
申请号：US16573329
申请日：2019-09-17
发明人： Wooram LEE , Seho PARK , Yusu KIM , Kyungmin PARK , Juhyang LEE , Byungyeol CHOI
摘要： A wireless power transmitter is provided. The wireless power transmitter includes an inverter configured to output alternating current (AC) power using direct current (DC) power, a coil configured to receive the AC power, and a control circuitry, wherein the control circuitry is configured to identify an input associated with transmitting the AC power, output the AC power at a specified frequency determined according to the input, using the inverter, transmit the AC power to an external electronic device using the coil, and, while at least partially transmitting the AC power to the external electronic device, transmit information associated with an amount of the DC power input to the inverter to output the AC power to the external electronic device, such that the external electronic device identifies transmission efficiency of the AC power using the information associated with the amount of DC power.
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15.发明申请公开(公告)号：US20190222073A1
公开(公告)日：2019-07-18
申请号：US16246726
申请日：2019-01-14
发明人： Wooram LEE , Hyungjun KWON , Yusu KIM , Kyungmin PARK , Juhyang LEE , Byungyeol CHOI
CPC分类号： H02J50/80 , H02J50/10 , H02J50/60 , H04B5/0037
摘要： An electronic device may include a display, a power reception circuit, and a processor. The processor may perform wireless charging by receiving power wirelessly from an external electronic device through the power reception circuit, and receive data on one or more reasons to stop wireless charging from the external electronic device during the wireless charging. Also, the processor may transmit acknowledge (ACK) data to the external electronic device in response to receiving the data on the one or more reasons to stop wireless charging, and display, through the display, at least one reason to stop wireless charging included in the data on the one or more reasons to stop wireless charging. Other embodiments are possible.
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公开(公告)号：US20180331726A1
公开(公告)日：2018-11-15
申请号：US15777506
申请日：2016-11-14
发明人： Mincheol HA , Seho PARK , Jung-Oh SUNG , Ju-Hyang LEE , Kwangseob KIM , Dongzo KIM , Yusu KIM , Keumsu SONG , Jae-Woong JEON
CPC分类号： H04B5/0081 , H01F5/003 , H01F27/365 , H01F38/14 , H02J7/025 , H02J50/12 , H02J50/20 , H02J50/40 , H02J50/70 , H02J50/80 , H04B5/0031 , H04B5/0037
摘要： An electronic device and an operating method thereof according to various embodiments are capable of releasing a connection between a first antenna and a first magnetic field module, receiving power wirelessly through the first antenna by a second magnetic field module coupled to the first antenna, coupling the first antenna and the first magnetic field module, and performing first short range communication through the first antenna by the first magnetic field module.
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公开(公告)号：US20170271920A1
公开(公告)日：2017-09-21
申请号：US15413916
申请日：2017-01-24
发明人： Yusu KIM , Kwangseob KIM , Dongzo KIM , Seho PARK , Hanseok PARK , Keumsu SONG , Ju-Hyang LEE , Mincheol HA , Seung-Nyun KIM , Yong Sang YUN , Chi-Hyun CHO
摘要： An electronic apparatus and its operating method are provided. The electronic apparatus and its operating method can be configured to drive the capacitor, to detect the received power, and stop driving the capacitor.
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18.发明申请公开(公告)号：US20230137959A1
公开(公告)日：2023-05-04
申请号：US17885336
申请日：2022-08-10
发明人： Yusu KIM , Yongsang YUN
摘要： Various embodiments of the disclosure relate to an electronic device and method that increases the efficiency of power supplying of a wireless charging circuit. The processor may perform a wireless power sharing function, may identify the type of an external device aligned with a coil of the electronic device, may supply a designated first power to a wireless charging integrated circuit of the electronic device in the case in which the external device is a first device, the first device being a device that requests a voltage higher than a reference voltage level, may control the wireless charging IC to generate a current of the coil based on the first power, may activate a path that directly connects a battery of the electronic device and the wireless charging IC, and may supply a second power lower than the first power to the wireless charging IC via the path.
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公开(公告)号：US20230124638A1
公开(公告)日：2023-04-20
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
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：US20210083515A1
公开(公告)日：2021-03-18
申请号：US17106579
申请日：2020-11-30
发明人： Yusu KIM , Kyoungwon KIM , Kyounghoon KIM , Byungwook KIM , Jeongmin MOON , Kyungmin PARK , Jungmin LEE , Juhyang LEE , Kuchul JUNG , Sungjoon CHO , Chihyun CHO , Hansol CHOI , Youngmi HA , Yongsang YUN
摘要： According to various embodiments, an electronic device comprises a battery, a wireless interface including a coil and configured to wirelessly transmit electric power from the battery via the coil, and at least one processor configured to: perform a wireless charging function of wirelessly transmitting electric power to an external device via the wireless interface, while neither the electronic device nor the external device is being supplied with electric power from an external power source via a wire, and based on identifying that the external device starts being supplied with electric power from an external power source via a wire while performing the wireless charging function, stop performing the wireless charging function of wirelessly transmitting electric power to the external device.
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