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    OSCILLATION DETECTOR AND OPERATING METHOD THEREOF
    1.
    发明申请
    OSCILLATION DETECTOR AND OPERATING METHOD THEREOF 有权

    公开(公告)号：US20230034874A1

    公开(公告)日：2023-02-02

    申请号：US17873795

    申请日：2022-07-26

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jaeseung LEE ,  Sungmin YOO ,  Taehwang KONG ,  Junhyeok YANG

    IPC: G01R23/10

    Abstract: An oscillation detector includes an amplitude variation detection circuit configured to generate a first pulse signal by comparing levels of voltages with each other, a frequency variation detection circuit configured to generate a second pulse signal by filtering the first pulse signal and allowing to pass a frequency component that is less than or equal to a certain frequency among frequency components of the first pulse signal, and a time variation detection circuit configured to output an oscillation detection signal when the second pulse signal has consecutive pulses for a period of time.

    DC-DC CONVERTER AND POWER DEVICE INCLUDING THE SAME
    3.
    发明公开
    DC-DC CONVERTER AND POWER DEVICE INCLUDING THE SAME 审中-公开

    公开(公告)号：US20230170795A1

    公开(公告)日：2023-06-01

    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 ,  H02M1/08

    CPC classification number: H02M3/07 ,  H02M1/0012 ,  H02M1/08 ,  H02M1/0054

    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.

    DC-TO-DC CONVERTER AND INTEGRATED CIRCUIT INCLUDING THE SAME
    4.
    发明申请
    DC-TO-DC CONVERTER AND INTEGRATED CIRCUIT INCLUDING THE SAME 有权

    公开(公告)号：US20220131468A1

    公开(公告)日：2022-04-28

    申请号：US17389806

    申请日：2021-07-30

    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.

    SWITCH CONTROL VOLTAGE GENERATOR, BANDGAP REFERENCE GENERATOR, AND METHOD FOR GENERATING SWITCH VOLTAGE THEREOF
    5.
    发明申请
    SWITCH CONTROL VOLTAGE GENERATOR, BANDGAP REFERENCE GENERATOR, AND METHOD FOR GENERATING SWITCH VOLTAGE THEREOF 有权

    公开(公告)号：US20250021122A1

    公开(公告)日：2025-01-16

    申请号：US18412844

    申请日：2024-01-15

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Haejung CHOI ,  Jooseong KIM ,  Junhyeok YANG ,  Sungmin YOO

    IPC: G05F3/20 ,  G05F1/567 ,  G05F3/26

    Abstract: A semiconductor device including a bandgap reference generator that generates a reference voltage; a switch control voltage generator that generates a first reference current based on the reference voltage, and generates an adaptive switch level voltage by distributing the first reference current to a first path and a second path, the first path including a first resistor, and the second path including a second resistor and a first bipolar junction transistor connected in series; and a switch controller that generates a switch control signal for controlling switches included in the bandgap reference generator based on the adaptive switch level voltage. The adaptive switch level voltage has a slope with respect to temperature that is greater than a base-emitter voltage of the first bipolar junction transistor.

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