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公开(公告)号：US20240364147A1
公开(公告)日：2024-10-31
申请号：US18765065
申请日：2024-07-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Beomwoo GU , Daehyun KIM , Jaehyun PARK , Kangho BYUN , Sungku YEO , Youngho RYU
Abstract: A wireless power transmission device is provided. The wireless power transmission device includes a transmission coil including a first member, which has one end and the other end forming a first angle with a plane, and a second member, which is arranged on the plane and is connected to each of the one end and the other end of the first member, an impedance sensor for outputting a voltage value corresponding to an impedance change amount of a resonance circuit, which includes the transmission coil, a magnetic body having a side surface that is dented, the dented side surface facing a portion of the transmission coil, a motor for moving the magnetic body, memory storing one or more computer programs, and one or more processors communicatively coupled to the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the wireless power transmission device to receive the output voltage value from the impedance sensor, calculate the difference value between a reference voltage value and the received voltage value, determine control information about the motor on the basis of the calculated difference value, and drive the motor through the determined control information so as to control the distance between the magnetic body and the portion of the transmission coil.
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公开(公告)号：US20240322602A1
公开(公告)日：2024-09-26
申请号：US18680176
申请日：2024-05-31
Applicant: Samsung Electronics Co., Ltd.
Inventor： Beomwoo GU , Jaeseok PARK , Jaehyun PARK , Jaesun SHIN , Sungku YEO
IPC: H02J50/12
CPC classification number: H02J50/12
Abstract: An electronic device is provided. The electronic device includes a processor, a battery, and a wireless power transmission device, wherein the wireless power transmission device includes a power amplifier circuit including a switch circuit, a filter circuit, and a series resonant circuit, the power amplifier circuit being configured to convert direct current (DC) power received from the battery or a DC adapter into alternative current (AC) and to implement zero-voltage switching (ZVS), a power transmission circuit including a power transmission coil configured to transmit power received from the power amplifier circuit to outside, a matching circuit located between and connected to the power amplifier circuit and the power transmission circuit, the matching circuit being configured to match an impedance of the power amplifier circuit and the power transmission circuit, and a negative voltage detection circuit connected to the filter circuit of the power amplifier circuit and configured to detect a negative voltage generated in the filter circuit, and wherein the negative voltage detection circuit includes a voltage dividing circuit including a positive voltage power supply and a plurality of resistors, the voltage dividing circuit being configured to convert the negative voltage generated in the filter circuit of the power amplifier circuit into a positive voltage in a predetermined range, a voltage sensor configured to detect the positive voltage, and a low-pass filter located between and connected to the voltage dividing circuit and the voltage sensor.
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公开(公告)号：US20230065772A1
公开(公告)日：2023-03-02
申请号：US17898866
申请日：2022-08-30
Applicant: Samsung Electronics Co., Ltd.
Inventor： Joonhong KIM , Jaehyun PARK , Jaeseok PARK , Sungku YEO , Youngho RYU
Abstract: An electronic device is provided. The electronic device includes a resonator in which a first slot is formed, a first inverter connected to a first point and a second point on the first slot of the resonator and configured to provide power to the first slot for detecting a foreign material, the first point and the second point on the first slot being located opposite to each other with the first slot therebetween, a second inverter connected to a third point and a fourth point of the resonator different from the first point and the second point and configured to transfer power to the resonator, and a controller configured to control the first inverter to apply the first power having the first frequency to the first slot, identify at least one first impedance of the first point and the second point while the first power is applied to the first slot, identify, based on the at least one first impedance, an external object adjacent to the electronic device, and control the second inverter to apply a second power having a second frequency different from the first frequency to the third point and the fourth point so as to wirelessly provide power to an external wireless power reception device for a period at least partially overlapping with a period for which the first power is applied to the resonator.
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公开(公告)号：US20230101152A1
公开(公告)日：2023-03-30
申请号：US17954825
申请日：2022-09-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Beomwoo GU , Daehyun KIM , Jaeseok PARK , Jaehyun PARK , Sungku YEO , Jeongman LEE
Abstract: A wireless power transmitting device includes: a transistor configured to output a signal corresponding to a set operating frequency, based on an input signal and a driving voltage; a matching circuit connected with the transistor; a transmission coil connected with the matching circuit; an LC resonance circuit connected in parallel between the transistor and the matching circuit and configured to transfer a signal corresponding to at least one harmonic frequency of the operating frequency; and an impedance sensing circuit connected with the LC resonance circuit and configured to sense a load impedance of the wireless power transmitting device based on the signal corresponding to the at least one harmonic frequency transferred through the LC resonance circuit. The matching circuit is configured to provide impedance matching with the sensed load impedance by adjusting an impedance of the matching circuit or an impedance of the transmission coil.
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公开(公告)号：US20210194291A1
公开(公告)日：2021-06-24
申请号：US17272822
申请日：2019-09-03
Inventor： Sungku YEO , Kangyoon LEE , Chongmin LEE , Dongin KIM , Sangyun KIM , Jaeseok PARK , Youngho RYU , Hamed ABBASIZADEH
Abstract: An electronic device according to various embodiments of the present invention comprises: a receiving circuit for outputting an AC power received wirelessly; and a rectifier circuit for rectifying the AC power being output from the power receiving circuit. The rectifier circuit comprises a forward rectifier circuit and a reverse rectifier circuit. A first terminal of the forward rectifier circuit is connected to the receiving circuit and the reverse rectifier circuit, a second terminal of the forward rectifier circuit is connected to an output terminal, and the forward rectifier circuit comprises first transistors for rectifying the AC power during a first period. A first terminal of the reverse rectifier circuit is connected to the receiving circuit and the forward rectifier circuit, a second terminal of the reverse rectifier circuit is connected to a ground, and the reverse rectifier circuit can comprise second transistors for preventing the AC power from being transmitted to the forward rectifier circuit during a second period.
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Patent Agency Ranking
公开(公告)号：US20210149428A1
公开(公告)日：2021-05-20
申请号：US17022540
申请日：2020-09-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jaeseok PARK , Sungku YEO , Youngho RYU , Jaesun SHIN , Jeongman LEE , Chongmin LEE , Hyoseok HAN
IPC: G05F1/625
Abstract: 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：US20210036560A1
公开(公告)日：2021-02-04
申请号：US16969091
申请日：2018-12-24
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jaeseok PARK , Sanghyuk WI , Youngho RYU , Sungbum PARK , Sungku YEO
Abstract: 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：US20250167596A1
公开(公告)日：2025-05-22
申请号：US19034229
申请日：2025-01-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Beomwoo GU , Joonhong KIM , Jaeseok PARK , Jaehyun PARK , Kangho BYUN , Sungku YEO
Abstract: A wireless power transmission device may include a resonator comprising at least one coil and at least one capacitor, a magnetic substance displacement control module including a first magnetic substance portion and a second magnetic substance portion, a modulator configured to adjust a gap between the first magnetic substance portion and the second magnetic substance portion, and a driver configured to drive the modulator. The first magnetic substance portion and the second magnetic substance portion of the magnetic substance displacement control module are disposed to surround at least a portion of the at least one coil.
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9.发明公开公开(公告)号：US20230143950A1
公开(公告)日：2023-05-11
申请号：US18149115
申请日：2023-01-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Eunha CHOI , Eunvit CHUNG , Jaeseok PARK , Jeonghan SONG , Sungku YEO
CPC classification number: H02J50/12 , H02J50/80 , H02J7/0047 , H02J50/005 , H02J50/40 , H02J50/90
Abstract: A wireless power transmitting apparatus includes: at least one sensor for obtaining location information of at least one electronic device; a short-distance communication module for transmitting and receiving data including voltage or current information related to power of the at least one electronic device, to and from the at least one electronic device; a power transmission circuit configured to wirelessly supply power to the at least one electronic device; and a processor operably connected to the at least one sensor, the short-distance communication module, the power transmission circuit, and a display included in the wireless power transmitting apparatus or at least one electronic device, where the processor controls the display to output information about a power state of the at least one electronic device, on the basis of the location information of the at least one electronic device and the voltage or current information.
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公开(公告)号：US20220360110A1
公开(公告)日：2022-11-10
申请号：US17683614
申请日：2022-03-01
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Beomwoo GU , Kangho BYUN , Sungku YEO , Chongmin LEE , Bohwan CHOI , Hyoseok HAN
Abstract: 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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