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公开(公告)号：US10659021B2
公开(公告)日：2020-05-19
申请号：US16248159
申请日：2019-01-15
发明人： Sungku Yeo , Gwanghyeon Jeong , Songcheol Hong , Jaeseok Park , Seunghun Wang , Youngho Ryu , Junhan Lim
摘要： A vector sum circuit and a phase controller including the vector sum circuit are provided. The vector sum circuit includes an amplifier configured to amplify an input orthogonal signal by using a first metal oxide semiconductor field effect transistor (MOSFET), and a self body-biasing circuit comprising a resistor. The self body-biasing circuit is configured to connect a drain and a body of the first MOSFET to reduce a voltage connected to the body as a current at the drain increases.
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公开(公告)号：US12088110B2
公开(公告)日：2024-09-10
申请号：US17987590
申请日：2022-11-15
发明人： Jaehyun Park , Beomwoo Gu , Jaeseok Park , Kangho Byun , Jaesun Shin , Sungku Yeo , Youngho Ryu
CPC分类号： H02J50/005 , H02J50/12 , H02J50/402 , H03H7/38
摘要： The disclosure provides a variable wireless power transmitter including a plurality of resonators and a method of controlling the variable wireless power transmitter. A wireless power transmitter of the disclosure may include: a housing; a power amplifier disposed inside the housing; a first resonator including at least one coil and fixed to a first portion of the housing; a second resonator including at least one coil, rotatably disposed at a second portion of the housing, and configured to form a variable angle with the first resonator; a sensor configured to sense a shape change based on rotation of the second resonator; a controller configured to: identify a shape change of the first resonator and the second resonator based on a signal sensed by the sensor, identify whether impedance is matched for the first resonator or the second resonator based on the identification of the shape change, and generate a control signal for impedance matching for the first resonator or the second resonator based on identifying that the impedance is not matched; and a matching circuit including at least one coil and at least one capacitor, electrically coupled between the power amplifier and the first resonator, and configured to perform impedance matching based on the control signal received from the controller.
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公开(公告)号：US11990768B2
公开(公告)日：2024-05-21
申请号：US17583803
申请日：2022-01-25
发明人： Jaehyun Park , Beomwoo Gu , Jaeseok Park , Hyunseok Shin , Sungku Yeo , Youngho Ryu , Chongmin Lee
CPC分类号： H02J50/12 , H02J50/005
摘要： Disclosed is an annular resonator including a conductor formed on a surface of an annular shaped structure and having a first end and a second end opposite to the first end, and a capacitor having a first end and a second end opposite to the first end, wherein a radius of curvature of a first side facing a center portion of the annular shaped structure is smaller than a radius of curvature of a second side facing an outer periphery of the annular shaped structure, and wherein the first end and the second end of the conductor are electrically connected to the first end and the second end of the capacitor, respectively.
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公开(公告)号：US11379025B2
公开(公告)日：2022-07-05
申请号：US16847176
申请日：2020-04-13
发明人： Chongmin Lee , Sungku Yeo , Jaeseok Park , Hyoseok Han , Jaesun Shin , Jeongman Lee
摘要： An electronic device includes a plurality of loads, at least one processor, a plurality of regulators configured to adjust a voltage of power received from a power source and output the adjusted power, and a switching circuit configured to connect at least one of the plurality of regulators to at least one of the plurality of loads. The at least one processor is configured to identify a load to which power is to be supplied among the plurality of loads, select at least one regulator among the plurality of regulators connectable to the identified load, and control the switching circuit to connect the at least one selected regulator to the identified load.
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公开(公告)号：US11862995B2
公开(公告)日：2024-01-02
申请号：US17448256
申请日：2021-09-21
发明人： Sungku Yeo , Jaeseok Park , Kangyoon Lee , Chongmin Lee , Imran Ali , Kwangtae Kim , Dongin Kim , Seongjin Oh , Solhee In
摘要： The present disclosure relates to an artificial intelligence (AI) system which simulates functions such as cognition, judgment, and the like of the human brain by utilizing machine learning algorithms such as deep learning and the like, and to an application thereof. According to various embodiments, an electronic device may comprise: a first impedance matching circuit configured to perform a first impedance matching on a power signal wirelessly received from a wireless power transmission device; a second impedance matching circuit configured to perform a second impedance matching on the first impedance-matched power signal using any one impedance value among a plurality of impedance values; a control circuit configured to perform control to change an impedance value of the second impedance matching circuit to an impedance value learned using an impedance matching network model, corresponding to a power and a frequency of the second impedance-matched power signal; and a power conversion circuit configured to convert a second impedance-matched power signal in an AC form into a power in a DC form for charging a battery according to the changed impedance value.
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公开(公告)号：US11474571B2
公开(公告)日：2022-10-18
申请号：US17177542
申请日：2021-02-17
发明人： Seogyong Jeong , Junhyeong Park , Jaehyuck Shin , Youngho Ryu , Byeongguk Choi , Sungku Yeo , Chongmin Lee
摘要： A display panel module and an electronic device is provided, the display pane module including a plurality of display panel modules. According to the disclosure, an electronic device comprises: a housing, a cover glass, a plurality of display panels disposed adjacent to a rear surface of the cover glass in the housing, a plurality of first heat dissipation plates disposed adjacent to rear surfaces of the plurality of display panels in the housing, a plurality of power/data reception circuit boards disposed adjacent to rear surfaces of the plurality of first heat dissipation plates in the housing, a support configured to support at least a portion of the plurality of power/data reception circuit boards, and a power/data transmission circuit board having at least a portion contacting and supported by the support and spaced apart by a predetermined distance from the plurality of power/data reception circuit boards in a space provided by the support. The power/data transmission circuit board includes a plurality of first antennas corresponding to a plurality of second antennas included in each of the plurality of power/data reception circuit boards and a transmission resonator corresponding to a plurality of reception resonators included in each of the plurality of power/data reception circuit boards.
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公开(公告)号：US11355970B2
公开(公告)日：2022-06-07
申请号：US16969091
申请日：2018-12-24
发明人： Jaeseok Park , Sanghyuk Wi , Youngho Ryu , Sungbum Park , Sungku Yeo
摘要： According to various embodiments, a wireless power transmission device comprises: a first-scheme communication circuit; a power source for generating a source signal; a power transmission circuit for forming an RF wave on the basis of the source signal; and a control circuit, wherein the control circuit can be configured to receive, from an electronic device supporting first-scheme communication and second-scheme communication, a communication signal including information on a communication environment according to the second-scheme communication through the first-scheme communication circuit, and to control, on the basis of the information on the communication environment according to the second-scheme communication, the frequency of the source signal generated by the power source and/or the transmission strength of the RF wave. Other various embodiments are possible.
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公开(公告)号：US11347253B2
公开(公告)日：2022-05-31
申请号：US17022540
申请日：2020-09-16
发明人： Jaeseok Park , Sungku Yeo , Youngho Ryu , Jaesun Shin , Jeongman Lee , Chongmin Lee , Hyoseok Han
摘要： An electronic device according to an embodiment may include: a plurality of loads, a processor, and a power management circuit configured to provide the plurality of loads with a power, wherein the power management circuit may include a plurality of regulators configured to adjust a voltage of a power received from a power source and output a voltage-adjusted power, a switching circuit configured to connect at least one of the plurality of regulators to at least one of the plurality of loads, a plurality of power sensors each power sensor being configured to measure a magnitude of a power input to each of the plurality of loads, and a controller. The controller may be configured to obtain information related to an operation of each of the plurality of loads from the processor, obtain the magnitude of the power input to each of the plurality of loads from each of the plurality of power sensors, and identify a load which operates abnormally among the plurality of loads based on the magnitude of the power input to each of the plurality of loads and the information related to the operation of each of the plurality of loads.
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公开(公告)号：US12040629B2
公开(公告)日：2024-07-16
申请号：US17683614
申请日：2022-03-01
发明人： Beomwoo Gu , Kangho Byun , Sungku Yeo , Chongmin Lee , Bohwan Choi , Hyoseok Han
CPC分类号： H02J50/12 , H02J7/00308 , H02J7/007182 , H02J7/345
摘要： According to various embodiments, a wireless power reception device for receiving wireless power from a wireless power transmission device may include a first circuit, a first rectifier circuit, a detuning circuit, and a control circuit. The first circuit may include a first coil. The first rectifier circuit may include a first switch and a second switch among a plurality of switches. The detuning circuit may include at least one detuning capacitor and at least one detuning switch. In response to a voltage at an output terminal of the first rectifier circuit exceeding a first voltage, the control circuit may be configured to form a closed loop including the first coil, the first switch, and the second switch by controlling the at least one detuning switch to an on state and controlling the first switch and the second switch to the on state.
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公开(公告)号：US11962175B2
公开(公告)日：2024-04-16
申请号：US17085117
申请日：2020-10-30
发明人： Beomwoo Gu , Kangho Byun , Hyunseok Shin , Sungku Yeo , Youngho Ryu , Chongmin Lee
CPC分类号： H02J7/00308 , H02J7/0047 , H02J7/02 , H02J50/12 , H02J50/80
摘要： According to an embodiment, an electronic device may include a battery, a resonance circuit, a rectifier, a DC/DC converter, a charger, a switch, an overvoltage protection circuit configured to perform an overvoltage protection operation or to stop the overvoltage protection operation based on the voltage at the output terminal of the rectifier, a control circuit, and a communication circuit, and the control circuit may be configured to: based on a periodic repetition of a performance of the overvoltage protection operation and a stop of the overvoltage protection while the switch is in an off state, identify a first period during which the overvoltage protection operation is stopped, based on the first period, identify an expected voltage at an output terminal of the rectifier, to be expected, wherein the expected voltage is a voltage if the switch is in an on state, based on the expected voltage, identify whether an occurrence of an overvoltage is expected if the switch is in the on state, and control the communication circuit to transmit a communication signal including information about whether the occurrence of the overvoltage is expected.
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