公开(公告)号：US12273032B2

公开(公告)日：2025-04-08

申请号：US17985301

申请日：2022-11-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungwoo Lee ,  Hyoungseok Oh ,  Daewoong Cho ,  Jungwook Heo

IPC: H02M3/158 ,  H02J7/00 ,  H02M1/00 ,  H02M3/335 ,  H02M7/483 ,  H02M7/5395 ,  H03K17/693

Abstract: A charger integrated circuit includes a bidirectional switching converter including first to fourth switching elements connected in series, an inductor connected to a third switching element, and a capacitor connected to a second switching element and the third switching element, and a controller configured to generate, a first PWM signal and a second PWM signal based on sensing signals from the bidirectional switching converter, and a first switching signal controlling first and fourth switching elements based on the first PWM signal in response to an average of an inductor current being positive, a second switching signal controlling second and third switching elements based on the second PWM signal, and generate the first switching signal based on the second PWM signal, and the second switching signal based on the first PWM signal in response to the average value of the inductor current being negative.

公开(公告)号：US11774502B2

公开(公告)日：2023-10-03

申请号：US17587165

申请日：2022-01-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangbin Moon ,  Hyoungseok Oh ,  Sungwoo Lee ,  Jungwook Heo

IPC: G01R31/364 ,  G01R31/36 ,  G01R31/3842 ,  G01R31/389

CPC classification number: G01R31/364 ,  G01R31/3648 ,  G01R31/389 ,  G01R31/3842

Abstract: A battery device includes a first battery and a second battery connected in series. An electronic device for determining a state of charge of the battery device includes a sense resistor connected in series to the second battery, and a fuel gauge. The fuel gauge is configured to determine the state of charge of the battery device based on a first terminal voltage of the first battery, a first calculation current of the first battery, a second terminal voltage of the second battery, and a measurement current of the second battery measured through the sense resistor. The fuel gauge calculates a second calculation current of the second battery using a battery parameter of an equivalent circuit model, corrects the battery parameter when a difference between the measurement current and the second calculation current is not less than a threshold value, and calculates the first calculation current using the battery parameter or a corrected battery parameter.

公开(公告)号：US11540802B2

公开(公告)日：2023-01-03

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：US10790881B2

公开(公告)日：2020-09-29

申请号：US15962453

申请日：2018-04-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngjin Moon ,  Hyoungseok Oh ,  Sungwoo Lee

IPC: G06K5/00 ,  H04B5/00 ,  G06K7/08 ,  G06K19/04 ,  G06K19/06 ,  G06Q20/32 ,  G06Q20/34 ,  G06Q20/36 ,  G06Q20/38

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：US09882480B2

公开(公告)日：2018-01-30

申请号：US15139715

申请日：2016-04-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungwoo Lee ,  Minkyu Kwon ,  Hocheol Chung ,  Sungkyu Cho

IPC: H02M3/158 ,  H02M3/07

CPC classification number: H02M3/158 ,  H02M3/07

Abstract: A voltage converter includes a power switching unit and an indirect sensing circuit. The power switching unit includes a plurality of power switches and a capacitor. The indirect sensing circuit receives an input voltage, a first voltage at a first node of the capacitor, and a second voltage at a second node of the capacitor, and generates first and second sensing output voltages based on the input voltage and the first and second voltages. A voltage difference between the first and second voltages is equal to a fractional multiple of the input voltage.