公开(公告)号：US11509157B2

公开(公告)日：2022-11-22

申请号：US16847840

申请日：2020-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungkyu Cho ,  Minkyu Kwon ,  Taesun You ,  Sungwoo Lee ,  Taejin Jeong ,  Daewoong Cho

IPC: H02J7/00

Abstract: A charging management chip includes a switching charging circuit and a direct charging circuit. The switching charging circuit receives charging power, and passes through the charging power to a first node, and charges a battery according to a switching charging method and controls generation of a system voltage provided to an electronic system. The direct charging circuit receives the charging power applied to the first node via an input node, and charges the battery according to a direct charging method by providing the charging power to an output node based on a switching circuit therein. The switching charging circuit charges the battery through a first charging path including an inductor arranged outside the charging management chip, and the direct charging circuit charges the battery through a second charging path through which the charging power transferred to the output node is directly provided to the battery.

公开(公告)号：US11329694B2

公开(公告)日：2022-05-10

申请号：US17001988

申请日：2020-08-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungwoo Lee ,  Hyoungseok Oh ,  Minkyu Kwon ,  Sungkyu Cho

IPC: H04B3/56 ,  H04B3/02

Abstract: A first mobile device including a connection terminal configured to electrically connect to a second mobile device, a variable impedance device connected to the connection terminal, the variable impedance device configured to vary an impedance, processing circuitry configured to determine a power line communication (PLC) mode between the first mobile device and the second mobile device to be one of a low-speed PLC mode or a high-speed PLC mode, and control the impedance of the variable impedance device according to the determined PLC mode, and a PLC modem configured to receive power from the second mobile device or communicate data with the second mobile device based on the determined PLC mode.

公开(公告)号：US20240178759A1

公开(公告)日：2024-05-30

申请号：US18238307

申请日：2023-08-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daewoong Cho ,  Kyeseok Yoon ,  Hosung Son ,  Sungwoo Lee ,  Woonhyung Heo ,  Jungwook Heo

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/1582 ,  H02M1/0009 ,  H02J7/007

Abstract: An electronic device is provided. The electronic device includes: a first transistor configured to connect an input voltage node to a switching node; a second transistor configured to connect the switching node to a ground node; a latch circuit configured to generate a first signal having a first frequency and to control the first frequency based on a level of a load current; a switching modulation circuit configured to generate a second signal having a second frequency which is 1/N (where N is a natural number) times the first frequency; and a controller configured to control each of the first transistor and the second transistor, based on the second signal.

公开(公告)号：US20210137484A1

公开(公告)日：2021-05-13

申请号：US17091933

申请日：2020-11-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Uncheol Kim ,  Sungwoo Lee

IPC: A61B6/00

Abstract: A method, performed by a mobile X-ray detector, of processing an X-ray image, including generating the X-ray image of an object by detecting an X-ray transmitted through the object and converting the detected X-ray into an electrical signal; detecting a power supply stoppage which prevents transmission of the generated X-ray image from the mobile X-ray detector to a workstation; based on the detecting of the power supply stoppage, storing the X-ray image in a nonvolatile memory inside the mobile X-ray detector; and after storing the X-ray image, deactivating the mobile X-ray detector.

公开(公告)号：US20190052315A1

公开(公告)日：2019-02-14

申请号：US15962453

申请日：2018-04-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngjin Moon ,  Hyoungseok Oh ,  Sungwoo Lee

IPC: H04B5/00 ,  G06K7/08 ,  G06K19/04 ,  G06K19/06 ,  G06Q20/32 ,  G06Q20/34 ,  G06Q20/36 ,  G06Q20/38

CPC classification number: H04B5/0056 ,  G06K7/084 ,  G06K19/042 ,  G06K19/06206 ,  G06Q20/322 ,  G06Q20/3278 ,  G06Q20/352 ,  G06Q20/36 ,  G06Q20/3829 ,  H04B5/0031 ,  H04B5/0075

Abstract: An electronic device may include a transmission circuit and an inductive element. The inductive element may be configured to generate a wireless communication signal based on a current. The transmission circuit may be configured to output the current based on a supply voltage; to increase an intensity of the current, from zero to an increased intensity that is less than or equal to a target value, by alternately repeating a first increase and a first decrease of the intensity of the current, in a first time interval; to decrease the intensity of the current, from the increased intensity to zero, by alternately repeating a second increase and a second decrease of the intensity of the current, in a second time interval.

公开(公告)号：US20240283274A1

公开(公告)日：2024-08-22

申请号：US18583593

申请日：2024-02-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungwoo Lee ,  Sungwoo Moon ,  Jinwoo So ,  Daewoong Cho ,  Yonghwan Cho ,  Jungwook Heo

IPC: H02J7/00

CPC classification number: H02J7/00712 ,  H02J7/0048 ,  H02J2207/20

Abstract: A charging integrated circuit (IC) includes a battery, a switched capacitor IC comprising a second power stage for direct charging, and a switching charger IC comprising a first power stage for switching charging, a power meter configured to obtain information about input/output voltage and current, and a control circuit configured to perform switching charging by controlling the first power stage or perform direct charging through the switched capacitor IC by controlling the second power stage.

公开(公告)号：US12040652B2

公开(公告)日：2024-07-16

申请号：US17990647

申请日：2022-11-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungkyu Cho ,  Minkyu Kwon ,  Taesun You ,  Sungwoo Lee ,  Taejin Jeong ,  Daewoong Cho

IPC: H02J7/00

CPC classification number: H02J7/007182 ,  H02J7/00032 ,  H02J2207/20

Abstract: A charging management chip includes a switching charging circuit and a direct charging circuit. The switching charging circuit receives charging power, and passes through the charging power to a first node, and charges a battery according to a switching charging method and controls generation of a system voltage provided to an electronic system. The direct charging circuit receives the charging power applied to the first node via an input node, and charges the battery according to a direct charging method by providing the charging power to an output node based on a switching circuit therein. The switching charging circuit charges the battery through a first charging path including an inductor arranged outside the charging management chip, and the direct charging circuit charges the battery through a second charging path through which the charging power transferred to the output node is directly provided to the battery.

公开(公告)号：US20240079883A1

公开(公告)日：2024-03-07

申请号：US18502827

申请日：2023-11-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungkyu Cho ,  Minkyu Kwon ,  Sungwoo Lee ,  Taejin Jeong ,  Daewoong Cho

IPC: H02J7/00 ,  H02J50/80

CPC classification number: H02J7/00034 ,  H02J7/0031 ,  H02J7/0036 ,  H02J50/80 ,  H02J2207/30

Abstract: A charging integrated circuit (IC) in a mobile device including battery includes; a switching charger including at least one inductor, a direct charger including at least one capacitor, and a control circuit. The control circuit detects a connection between the mobile device and an external power unit and a disconnection between the mobile device and the external power unit, wherein the switching charger and the direct charger selectively receive an external power signal provided by the external power unit by the connection between the mobile device and an external power unit. Upon detecting the connection between the mobile device and an external power unit, the charging IC activates the direct charger and provides a constant charging current to the battery using the direct charger, and upon detecting the disconnection between the mobile device and an external power unit, the charging IC deactivates the direct charger, activates the switching charger, and maintains a battery voltage associated with the battery using the switching charger.

公开(公告)号：US11837887B2

公开(公告)日：2023-12-05

申请号：US17035921

申请日：2020-09-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungkyu Cho ,  Minkyu Kwon ,  Sungwoo Lee ,  Taejin Jeong ,  Daewoong Cho

IPC: H02J7/00 ,  H02J50/80

CPC classification number: H02J7/00034 ,  H02J7/0031 ,  H02J7/0036 ,  H02J50/80 ,  H02J2207/30

Abstract: A charging integrated circuit (IC) in a mobile device including battery includes; a switching charger including at least one inductor, a direct charger including at least one capacitor, and a control circuit. The control circuit detects a connection between the mobile device and an external power unit and a disconnection between the mobile device and the external power unit, wherein the switching charger and the direct charger selectively receive an external power signal provided by the external power unit by the connection between the mobile device and an external power unit. Upon detecting the connection between the mobile device and an external power unit, the charging IC activates the direct charger and provides a constant charging current to the battery using the direct charger, and upon detecting the disconnection between the mobile device and an external power unit, the charging IC deactivates the direct charger, activates the switching charger, and maintains a battery voltage associated with the battery using the switching charger.

公开(公告)号：US11575267B2

公开(公告)日：2023-02-07

申请号：US17011065

申请日：2020-09-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungwoo Lee ,  Minkyu Kwon ,  Hyoungseok Oh ,  Yonghwan Cho

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/48

Abstract: A charger integrated circuit for charging a battery device including a first battery and a second battery includes; a first charger configured to generate a first charging current from an input voltage when the input voltage is received from an input voltage terminal, and a battery switch configured to provide the first charging current to the battery device, the battery switch comprising a plurality of transistors for connecting the first battery and the second battery in series or in parallel based on the input voltage, a first both-end voltage of the first battery and a second both-end voltage of the second battery.