公开(公告)号：US20210336489A1

公开(公告)日：2021-10-28

申请号：US17366994

申请日：2021-07-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chongmin LEE ,  Jaeseok PARK ,  Hyoseok HAN ,  Sangwook LEE ,  Seunghyun LEE

IPC: H02J50/20 ,  H04B1/40 ,  H02J50/40 ,  H02J50/80

Abstract: Provided are a wireless power transmission device and an operating method therefor, the device confirming an optimum phase adjustment degree for each antenna by applying a reference signal to at least one from among a plurality of patch antennas and sequentially applying a plurality of phase electric signals to each of the remaining antennas, when an RF wave is formed using electric signals from a plurality of power sources.

公开(公告)号：US20230118967A1

公开(公告)日：2023-04-20

申请号：US17969283

申请日：2022-10-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bohwan CHOI ,  Jinsu CHOI ,  Sungbum PARK ,  Kyungmin LEE ,  Sangwook LEE

IPC: H02J50/60 ,  H02J50/12

Abstract: A first electronic device for wirelessly transmitting power may include a power transmission circuit, memory, a pulse generator, a foreign object detection circuit configured to detect a foreign object located in a path in which power is wirelessly transmitted through the power transmission circuit, and a control circuit. The control circuit may be configured to wirelessly transmit power to a second electronic device, based on an alternating current (AC) input voltage applied to the power transmission circuit, generate a trigger signal synchronized with a first time corresponding to a specified voltage of the input voltage through the pulse generator, store an output value of the foreign object detection circuit in the memory based on the trigger signal, the output value being identified at the first time, continuously obtain the output value stored in the memory from the memory during a specified time until before the trigger signal of a next period is received at the memory from the pulse generator, and detect the foreign object based on the output value obtained during the specified time.

公开(公告)号：US20240223020A1

公开(公告)日：2024-07-04

申请号：US18610705

申请日：2024-03-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangwook LEE ,  Kyungmin LEE ,  Bohwan CHOI ,  Jinsoo CHOI ,  Sungbum PARK

IPC: H02J50/60 ,  H02J50/12 ,  H02J50/80

CPC classification number: H02J50/60 ,  H02J50/12 ,  H02J50/80

Abstract: The disclosure relates to an electronic device and a method for detecting a foreign body, wherein a control circuit of the electronic device may be configured to: supply transmission power to a power transmission circuit; identify, on the basis of a low power wireless communication signal, whether an external device is present in a partial area of the externally exposed surface of the electronic device, which corresponds to a resonant circuit; on the basis of the presence of the external device, apply a high frequency current to the resonant circuit and transmit transmission power generated in the resonant circuit to the external device; obtain analog digital converter samples in a half-wave rectified direct current interval of a direct current link voltage corresponding to a transmission current detected in the power transmission circuit; and detect a foreign body on the basis of the analog digital converter samples.

公开(公告)号：US20230261529A1

公开(公告)日：2023-08-17

申请号：US18099029

申请日：2023-01-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangwook LEE ,  Sungbum PARK ,  Kyungmin LEE ,  Bohwan CHOI ,  Jinsoo CHOI

IPC: H02J50/80 ,  H02J50/12

CPC classification number: H02J50/80 ,  H02J50/12

Abstract: According to embodiments, a wireless power transmitter may include: a communication module comprising communication circuitry; a power transmission circuit configured to transmit wireless power; and a processor. The processor may be configured to: establish a communication connection with a wireless power receiver using the communication module, control the communication module to transmit information about a first period to the wireless power receiver via the communication connection, control the power transmission circuit to transmit first power of a first frequency and a first magnitude to an outside, control the communication module to receive information about a second frequency of second power received at the wireless power receiver from the wireless power receiver via the communication connection, control the communication module to release the communication connection, based on the first frequency being different from the second frequency, and control the power transmission circuit to transmit third power of a magnitude different from the first magnitude of the first power to the outside during the first period, based on the first frequency corresponding to or substantially identical to the second frequency.

公开(公告)号：US20230231424A1

公开(公告)日：2023-07-20

申请号：US18124963

申请日：2023-03-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangwook LEE ,  Sungbum PARK ,  Hyunseok SHIN ,  Youngho RYU ,  Kyungmin LEE ,  Cheonyong LIM ,  Jinsu CHOI

IPC: H02J50/90 ,  H02J50/10 ,  H02J50/60

CPC classification number: H02J50/90 ,  H02J50/10 ,  H02J50/60

Abstract: Disclosed is an electronic device including a plurality of sensing coils for sensing an external device; a power transmitting coil for transmitting power to the external device; and a processor configured to: sequentially apply, to the power transmitting coil, powers having magnitudes respectively set to correspond to the plurality of sensing coils, and during a period in which power corresponding to each sensing coil of the plurality of sensing coils among the powers is applied, identify induction voltages respectively induced in the plurality of sensing coils, and sense the external device located on a wireless power transmitting device, on the basis of the identified induction voltages.

公开(公告)号：US20230037038A1

公开(公告)日：2023-02-02

申请号：US17702105

申请日：2022-03-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byoungcheol HWANG ,  Sangwook LEE ,  Sunghyup KIM ,  Keonwoo KIM ,  Junyoung CHOI ,  Sanghoon CHEONG

IPC: C23C16/455 ,  C23C16/458

Abstract: A deposition apparatus, includes a chamber having at least one first gas inlet therein. A fixed chuck is installed in the chamber and an electrostatic chuck is installed on the fixed chuck. An edge ring is disposed on an edge of the electrostatic chuck. A shower head is disposed above the edge ring. A baffle is disposed above the shower head and an upper electrode is disposed above the baffle. A gas guide member is disposed above the upper electrode so that a flow path provided in the upper electrode and the first gas inlet are connected. The gas guide member has a flow path hole penetrating in upward and downward directions, and a plurality of guide holes are provided on an inner surface of the gas guide member.

公开(公告)号：US20220376558A1

公开(公告)日：2022-11-24

申请号：US17664365

申请日：2022-05-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinsoo CHOI ,  Bohwan CHOI ,  Sungbum PARK ,  Youngho RYU ,  Kyungmin LEE ,  Sangwook LEE

IPC: H02J50/60 ,  H02J50/10 ,  G01R19/10 ,  G01V3/10

Abstract: A detection coil includes a first sub coil disposed on a first PCB, the first sub coil includes a first part, and a second part that is disposed under the first part and that includes: one end connected to one end of the first part and is wound in a direction opposite to a direction the first part is wound. The detection coil includes a second sub coil disposed on a second PCB and including a third part and a fourth part disposed under the third part. The fourth part includes one end connected to one end of the third part, and is wound in a direction opposite to a direction the third part is wound. The first and second parts have polygonal shapes symmetrical to each other. The third and fourth parts have polygonal shapes symmetrical to each other. The first and second sub coils are arranged to partially overlap each other.

公开(公告)号：US20240250559A1

公开(公告)日：2024-07-25

申请号：US18628465

申请日：2024-04-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungmin LEE ,  Sungbum PARK ,  Sangwook LEE ,  Bohwan CHOI ,  Jinsoo CHOI

IPC: H02J50/12 ,  H02J50/40 ,  H02J50/80

CPC classification number: H02J50/12 ,  H02J50/40 ,  H02J50/80

Abstract: A wireless power transmission device including a power transmission circuit; and at least one processor, where the at least one processor is configured to: output a first power through the power transmission circuit and identify a first phase of a first current or a first voltage by an external wireless power receiver before wireless power transmission, identify a second phase of a second current or a second voltage by the external wireless power receiver through the power transmission circuit while outputting the first power, identify a difference between the first phase and the second phase, identify a difference between the first phase and the second phase, identify the external wireless power receiver based on the difference between the first phase and the second phase, and control the power transmission circuit to transmit a second power to the identified external wireless power receiver.

公开(公告)号：US20230261521A1

公开(公告)日：2023-08-17

申请号：US18140334

申请日：2023-04-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangwook LEE ,  Sungbum PARK ,  Youngho RYU ,  Kyungmin LEE ,  Cheonyong LIM ,  Jinsu CHOI

IPC: H02J50/10 ,  H02J50/40 ,  H02J7/02 ,  H02J50/90 ,  H02J50/80 ,  H01F38/14 ,  H05B6/12

CPC classification number: H02J50/10 ,  H02J50/402 ,  H02J7/02 ,  H02J50/90 ,  H02J50/80 ,  H01F38/14 ,  H05B6/1236 ,  H02J2207/20

Abstract: A wireless power transmission device includes power transmission coils for transmitting power to a wireless power reception device; inverters for applying alternating current power to the coils; a communication module using a frequency different from that of the power transmitted from the coils; and a processor. The processor controls the inverters such that first power is sequentially applied to the coils respectively, receives a communication signal from the reception device through the communication module while the first power is being sequentially applied, identifies a first coil corresponding to a position of the reception device based on of a reception time point of the communication signal and time points at which the first power starts to be applied to the coils, and controls a first inverter corresponding to the first coil such that second power for charging the reception device is applied to the first coil.

公开(公告)号：US20210320530A1

公开(公告)日：2021-10-14

申请号：US17267996

申请日：2019-08-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangwook LEE ,  Chongmin LEE ,  Daehyun KIM ,  Jaeseok PARK ,  Hyoseok HAN ,  Seunghyun LEE

IPC: H02J50/20 ,  H02J50/80 ,  H02J50/90 ,  H02J50/40

Abstract: A wireless power receiving device, according to the disclosure, comprises: at least one power receiving antenna for sequentially receiving a plurality of different RF waves formed by a wireless power transmitting device; a communication circuit; and at least one processor, wherein the at least one processor is configured to confirm a plurality of pieces of strength information that indicates the strength of each of the plurality of different RF waves, confirm a plurality of pieces of phase information corresponding to each of the plurality of different RF waves, confirm, on the basis of the plurality of pieces of strength information and the plurality of pieces of phase information, an optimum phase value such that a received RF wave has a maximum strength, and transmit a communication signal including information about the optimum phase value to the wireless power transmitting device through the communication circuit. Additional various embodiments are possible.