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    DC-to-DC converter and integrated circuit including the same
    1.
    发明授权
    DC-to-DC converter and integrated circuit including the same 有权

    公开(公告)号：US12212242B2

    公开(公告)日：2025-01-28

    申请号：US18468893

    申请日：2023-09-18

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Sungmin Yoo ,  Taehwang Kong ,  Sangho Kim ,  Junhyeok Yang ,  Hyungmin Lee ,  Yunho Lee ,  Woojoong Jung

    IPC: H02M3/158 ,  H02M1/08 ,  H02M3/157

    Abstract: A direct-current (DC)-DC converter includes a converting circuit including an inductor element. The converting circuit is configured to generate an output voltage from an input voltage based on a switching operation. An inductor current emulator is configured to adjust at least one parameter for changing a current peak value of the inductor element in response to a change in a level of the input voltage and is configured to generate an internal voltage based on the at least one parameter, which is adjusted. The inductor current emulator is configured to generate a control signal for controlling the switching operation such that current of the inductor element has a pattern corresponding to a pattern of the internal voltage.

    DC-DC converter and power device including the same
    2.
    发明授权
    DC-DC converter and power device including the same 有权

    公开(公告)号：US12283884B2

    公开(公告)日：2025-04-22

    申请号：US17993603

    申请日：2022-11-23

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sungmin Yoo ,  Minsu Kim ,  Hyungmin Lee ,  Taehwang Kong ,  Junhyeok Yang ,  Woojoong Jung

    IPC: H02M3/07 ,  H02M1/00

    Abstract: The present disclosure refers to direct current-to-direct current (DC-DC) converters and power supplies including the same. In an embodiment, a DC-DC converter includes a first switching circuit, a second switching circuit, a fourth capacitor coupled to a second node, and an inductor-capacitor (LC) filter coupled to a third node. The first switching circuit includes a first transistor coupled between a first capacitor and an input node, a second transistor coupled between the first capacitor and a second capacitor, a third transistor coupled between a first node and a third capacitor, and a fourth transistor coupled between the third capacitor and a ground node. The second switching circuit includes a fifth transistor coupled between the second capacitor and the third capacitor, a sixth transistor and a seventh transistor coupled between the first capacitor and the third capacitor, and an eighth transistor coupled between the first capacitor and the ground node.

    LDO REGULATOR CAPABLE OF BEING OPERATED AT LOW VOLTAGE AND SEMICONDUCTOR DEVICE INCLUDING THE SAME
    4.
    发明公开
    LDO REGULATOR CAPABLE OF BEING OPERATED AT LOW VOLTAGE AND SEMICONDUCTOR DEVICE INCLUDING THE SAME 审中-公开

    公开(公告)号：US20240053783A1

    公开(公告)日：2024-02-15

    申请号：US18342415

    申请日：2023-06-27

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Hyung-Min Lee ,  Hyunjun Park ,  Woojoong Jung

    IPC: G05F1/575 ,  G05F1/565 ,  G05F3/24

    CPC classification number: G05F1/575 ,  G05F1/565 ,  G05F3/247

    Abstract: A low dropout (LDO) regulator includes: one or more power transistors configured to dispose between an input node and an output node, wherein the input node is a node to which an input voltage is applied and the output node is a node from which an output voltage is output; a voltage comparing unit configured to generate a comparative signal based on a difference between the output voltage and a first reference voltage; a digital control unit configured to generate a control signal for gating of the one or more power transistors in response to the comparative signal; and a gate driving unit configured to output a gating signal for the one or more power transistors in response to the control signal, wherein the gating signal is corresponding to one of the input voltage and a negative of the input voltage.

    DC-DC BUCK CONVERTER AND OPERATING METHOD THEREOF
    5.
    发明申请
    DC-DC BUCK CONVERTER AND OPERATING METHOD THEREOF 有权

    公开(公告)号：US20220385186A1

    公开(公告)日：2022-12-01

    申请号：US17828829

    申请日：2022-05-31

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sungmin Yoo ,  Hyungmin Lee ,  Woojoong Jung ,  Taehwang Kong ,  Junhyeok Yang ,  Yunho Lee

    IPC: H02M3/158

    Abstract: A DC-DC buck converter for generating an output voltage by stepping down an input voltage includes a converting circuit including a plurality of transistors, a first capacitor, a second capacitor, and an inductor, the converting circuit being configured to form a current path that varies according to a plurality of modes and a plurality of phases; and a control circuit configured to: determine a mode of the converting circuit, from among the plurality of modes, according to a first amplitude of the input voltage and a second amplitude of the output voltage, and determine an ON/OFF state of each transistor of the plurality of transistors according to the determined mode and a phase from among the plurality of phases.

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