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

IPC: H02M3/158 ,  H02M1/00 ,  H02J7/00

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.

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.