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1.发明授权公开(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
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.
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公开(公告)号：US10361620B2
公开(公告)日：2019-07-23
申请号：US15967687
申请日：2018-05-01
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kwang Chan Lee , Sungwoo Lee , Jungwook Heo , Hyoungseok Oh , Jiheon Kang , Hocheol Chung
Abstract: The voltage converter including an inductor connected between an output node and a switch node, a capacitor connected between the output node and a ground node, first transistor connected between the switch node and the ground node, a second transistor connected between the switch node and an input node, a boost capacitor connected between the switch node and a boost node, a first driver configured to drive a gate voltage of the first transistor based on a ground voltage of the ground node and a power supply voltage of a power node, a second driver configured to drive a gate voltage of the second transistor based on a switch voltage of the switch node and a boost voltage of the boost node and, and a regulator configured to control the boost voltage depending on a status of the voltage converter may be provided.
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公开(公告)号：US10332101B2
公开(公告)日：2019-06-25
申请号：US15854162
申请日：2017-12-26
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sungwoo Lee , Youngjin Moon , Hyoungseok Oh
Abstract: A magnetic secure transmission (MST) device which generates an MST signal includes a first transmitter, a first coil that generates a first signal depending on an operation of the first transmitter, a second transmitter that operates at an operating frequency of the first transmitter, and a second coil that generates a second signal for offsetting or compensating for the first signal depending on an operation of the second transmitter. The MST signal is generated as the first signal and the second signal overlap each other.
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公开(公告)号：US20220255435A1
公开(公告)日：2022-08-11
申请号：US17665933
申请日：2022-02-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kyeseok Yoon , Hyebong Ko , Jinwoo So , Hyoungseok Oh , Daewoong Cho , Jungwook Heo
Abstract: The inventive concepts provide a bidirectional switching converter including a first power metal oxide semiconductor field effect transistor (MOSFET) connecting an input voltage node to a switching node, a second power MOSFET connecting the switching node to a ground node, and a zero current detection (ZCD) auto-calibration circuit configured to perform one of an operation of generating a first offset for varying a turn-on time of the first power MOSFET according to an operation mode and an operation of generating a second offset for varying a turn-on time of the second power MOSFET according to the operation mode.
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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
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.
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Patent Agency Ranking
公开(公告)号：US11152924B2
公开(公告)日：2021-10-19
申请号：US16910261
申请日：2020-06-24
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kwang Chan Lee , Hyoungseok Oh , Jungwook Heo
IPC: H03K19/0175 , H03K3/356 , H03K19/0185
Abstract: A level shifter including an input block that receives an input voltage swinging between a first ground voltage and a first power supply voltage and that connects one node of a first node and a second node to a first ground node, in response to the input voltage, a shifting block that mutually exchanges the voltage levels of third and fourth nodes in response to a current flowing through the one node, a pulse generator that generates a first pulse and a second pulse in response to the input voltage, a first transistor that directly connects the third node to the first ground node in response to the first pulse, and a second transistor that directly connects the fourth node to the first ground node in response to the second pulse.
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公开(公告)号：US20210249891A1
公开(公告)日：2021-08-12
申请号：US17172117
申请日：2021-02-10
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hyunsu Kim , Hyoungseok Oh
Abstract: An electronic device configured to operate in a plurality of power modes includes a power receiving circuit receiving wireless power from an power transmitting device; and a processor configured to control an operation of the electronic device, wherein the plurality of power modes include a power charging mode in which the wireless power is continuously provided, a power hold mode in which a state where the wireless power is provided and a state where the wireless power is cut off are periodically repeated in a ping period, and a power cutoff mode in which the wireless power is cut off, wherein the power receiving circuit generates a ping flag signal alternates between a high level and a low level with the ping period in the power hold mode, and changes the power mode based on a counting value obtained by counting particular level sections of the ping flag signal.
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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.
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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.
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公开(公告)号：US11764671B2
公开(公告)日：2023-09-19
申请号：US17536810
申请日：2021-11-29
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kwang Chan Lee , Hyoungseok Oh , Hojun Yu , Jeongkwang Lee , Jungwook Heo
CPC classification number: H02M3/07 , H02M1/0095 , H02M1/009 , H02M3/158 , H02M3/1582
Abstract: A voltage converter including first to fourth switches between a first voltage node and ground, fifth to eighth switches between the first voltage node and the ground, a first floating capacitor between a first node between the first and second switches and a second node between the third and fourth switches, a second floating capacitor between a third node between the fifth and sixth switches and a fourth node between the seventh and eighth switches, a ninth switch between a second voltage node and a center node, a first inductor between the second node and a third voltage node, a center capacitor between the center node and the ground, a tenth switch between the second voltage node and the third voltage node, a first capacitor between the third voltage node and the ground, and a second capacitor between the second voltage node and the ground may be provided.
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