公开(公告)号：US20230402879A1

公开(公告)日：2023-12-14

申请号：US18456176

申请日：2023-08-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaeseok PARK ,  Jaehyun PARK ,  Beomwoo GU ,  Kangho BYUN ,  Sungku YEO ,  Youngho RYU ,  Chongmin LEE ,  Hyoseok HAN

IPC: H02J50/12 ,  H02J50/60 ,  G01R25/00 ,  G01R27/02

CPC classification number: H02J50/12 ,  H02J50/60 ,  G01R25/00 ,  G01R27/02

Abstract: The disclosure provides a wireless power transmitting apparatus and a method for wirelessly transmitting power by the wireless power transmitting apparatus. The wireless power transmitting apparatus according to an example embodiment comprises: a power amplifier; a coil connected to the power amplifier and configured to generate an electromagnetic field based on power received from the power amplifier; an impedance sensing circuit connected between the power amplifier and the coil; at least one auxiliary coil electromagnetically coupled to the coil; and a controller, wherein the controller may be configured to: identify a change in impedance, from a signal sensed through the impedance sensing circuit, and adjust an operation setting of the at least one auxiliary coil based on the identified change in impedance.

公开(公告)号：US20230155416A1

公开(公告)日：2023-05-18

申请号：US17987590

申请日：2022-11-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jaehyun PARK ,  Beomwoo GU ,  Jaeseok PARK ,  Kangho BYUN ,  Jaesun SHIN ,  Sungku YEO ,  Youngho RYU

IPC: H02J50/00 ,  H02J50/12 ,  H02J50/40 ,  H03H7/38

CPC classification number: H02J50/005 ,  H02J50/12 ,  H02J50/402 ,  H03H7/38

Abstract: 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.

公开(公告)号：US20230146055A1

公开(公告)日：2023-05-11

申请号：US18093088

申请日：2023-01-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jaeseok PARK ,  Beomwoo GU ,  Jaehyun PARK ,  Sungku YEO ,  Youngho RYU ,  Jeongman LEE ,  Chongmin LEE ,  Hyoseok HAN

IPC: H02J50/12 ,  H02J7/00 ,  H02J50/90 ,  H02J50/80 ,  G01R19/165

CPC classification number: H02J50/12 ,  H02J7/00712 ,  H02J50/90 ,  H02J7/00308 ,  H02J50/80 ,  G01R19/16576 ,  H02J2207/20

Abstract: An electronic device may include: a battery, a resonant circuit including a receiving coil, at least one capacitor and at least one switch, a rectifier circuit; a DC/DC converter, a charge control circuit; and a controller, wherein the controller may be configured to check the voltage outputted from the rectifier circuit, control the at least one switch so that the receiving coil and the at least one capacitor form a serial resonant circuit, if the voltage output from the rectifier circuit is greater than or equal to a threshold voltage, and control the at least one switch so that the receiving coil and the at least one capacitor form a parallel resonant circuit, if the voltage output from the rectifier circuit is less than the threshold voltage.

公开(公告)号：US20230077067A1

公开(公告)日：2023-03-09

申请号：US17903472

申请日：2022-09-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joonhong KIM ,  Beomwoo GU ,  Jaeseok PARK ,  Jaehyun PARK ,  Sungku YEO ,  Youngho RYU

IPC: H02J50/90 ,  H02J50/12

Abstract: The disclosure provides a wireless power transmitting device and a method for detecting an approaching object by the wireless power transmitting device. According to the disclosure, a wireless power transmitting device may comprise: a power amplifier, a transmission resonator including a coil, and configured to receive an electrical signal corresponding to a first frequency, which is output through the power amplifier, and to form a magnetic field by the received electrical signal corresponding to the first frequency to transmit power, an antenna configured in a shape corresponding to any one side of a symmetrical axis of a split ring resonator (SRR) antenna, disposed adjacent to the transmission resonator, and configured to receive a signal corresponding to a second frequency, a sensing circuit configured to sense at least part of the signal corresponding to the second frequency transmitted to the antenna, and a controller configured to identify whether a human body approaches, based on a signal sensed through the sensing circuit. A first terminal of the sensing circuit may be connected to a first portion of the antenna, and a second terminal of the sensing circuit may be connected to the coil of the transmission resonator.

公开(公告)号：US20220239154A1

公开(公告)日：2022-07-28

申请号：US17583803

申请日：2022-01-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaehyun PARK ,  Beomwoo GU ,  Jaeseok PARK ,  Hyunseok SHIN ,  Sungku YEO ,  Youngho RYU ,  Chongmin LEE

IPC: H02J50/12 ,  H02J50/00

Abstract: 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.

公开(公告)号：US20210376642A1

公开(公告)日：2021-12-02

申请号：US17085117

申请日：2020-10-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Beomwoo GU ,  Kangho BYUN ,  Hyunseok SHIN ,  Sungku YEO ,  Youngho RYU ,  Chongmin LEE

IPC: H02J7/00 ,  H02J50/12 ,  H02J50/80 ,  H02J7/02

Abstract: 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.

公开(公告)号：US20210288353A1

公开(公告)日：2021-09-16

申请号：US17196094

申请日：2021-03-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Manohar GOTTAPU ,  Arijit GUHA ,  Shashishekara Parampalli ADIGA ,  Daehyun KIM ,  Taedong GOH ,  Youngho RYU

IPC: H01M10/42 ,  H01M10/48 ,  G01R31/3842 ,  G01R31/367 ,  H01M10/44

Abstract: Methods and electronic devices for estimating state of charge (SOC) of a battery pack. Various embodiments provide a model comprising an (electrical) equivalent circuit model, an electrochemical (thermal) model, and a (convective) thermal model. The model estimates parameters pertaining to each cell of the battery pack individually, and determines the variations in the values of the parameters among each of the cells of the battery pack. The parameters include capacity, temperature current, voltage, and SOC. The parameters are computed based on at current drawn by the battery pack, electrochemical parameters, thermal parameters, and cell internal and connection resistances of the individual cells. Various embodiments compute battery pack uptime, chargeable capacity of the battery pack and SOC of the battery pack, based on the values of the parameters.

公开(公告)号：US20210184365A1

公开(公告)日：2021-06-17

申请号：US17268012

申请日：2019-08-13

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jaeseok PARK ,  Rao Shahid AZIZ ,  Youngho RYU ,  Taewan KIM ,  Seongook PARK

IPC: H01Q19/06

Abstract: According to various embodiments of the present invention, an antenna device can comprise: a substrate layer; a source antenna arranged on the substrate layer so as to include a radiating conductor for radiating electromagnetic waves in the direction in which one surface of the substrate layer is oriented; and a planar lens for converting quasi-spherical electromagnetic waves radiated from the source antenna into plane waves. The antenna device can be varied according to embodiments.

公开(公告)号：US20190222205A1

公开(公告)日：2019-07-18

申请号：US16248159

申请日：2019-01-15

Applicant: Samsung Electronics Co., Ltd. ,  Korea Advanced Institute of Science and Technology

Inventor： Sungku YEO ,  Gwanghyeon JEONG ,  Songcheol HONG ,  Jaeseok PARK ,  Seunghun WANG ,  Youngho RYU ,  Junhan LIM

IPC: H03K5/00 ,  H03H11/32 ,  H03M1/66 ,  H03K17/687

CPC classification number: H03K5/00 ,  H02J50/10 ,  H03H11/32 ,  H03K17/687 ,  H03K2005/00286 ,  H03M1/66

Abstract: 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.