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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
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.
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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.
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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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Patent Agency Ranking
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：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.
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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.
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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
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.
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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
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.
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