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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：US11936771B2
公开(公告)日：2024-03-19
申请号：US17783119
申请日：2020-12-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kangjin Yoon , Sungkyu Cho , Sehee Han , Moonseok Kang , Hyunchul Kim , Yi Yang , Sungjun Lim
CPC classification number: H04L9/0668 , G01S13/0209 , H04L9/0631 , H04L9/0822 , H04L9/0869 , H04L9/3297 , H04W12/03 , H04L2209/80
Abstract: Provided is a method of an electronic device for performing ultra wide band (UWB) communication. The method includes receiving upper bit information including pre-set at least one parameter via a UWB command interface (UCI), obtaining slot count information and key information including a constant key value, and performing static scrambled timestamp sequence (STS) generation, based on the upper bit information, the slot count information, and the key information.
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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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