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    POWER AMPLIFIER
    1.
    发明公开
    POWER AMPLIFIER 审中-公开

    公开(公告)号：US20240120893A1

    公开(公告)日：2024-04-11

    申请号：US18376644

    申请日：2023-10-04

    Applicant: Samsung Electro-Mechanics Co., Ltd.

    Inventor： Jeonghoon KIM ,  Jongok HA ,  Youngwong JANG ,  Shinichi IIZUKA ,  Hyejin LEE

    IPC: H03F3/24 ,  H03F1/02

    CPC classification number: H03F3/245 ,  H03F1/0222 ,  H03F2200/102 ,  H03F2200/451

    Abstract: A power amplifier includes a power transistor configured to amplify an input radio-frequency (RF) signal, and a bias circuit configured to provide a bias current to the power transistor, and in a first power mode, detect a first signal corresponding to a first level or more in the input RF signal and generate the bias current corresponding to the first signal, or detect a second signal corresponding to a second level or less in the input RF signal and generate the bias current corresponding to the second signal, and in a second power mode, detect a third signal corresponding to a third level or more in the input RF signal and generate the bias current corresponding to the third signal, or detect a fourth signal corresponding to a fourth level or less in the input RF signal and generate the bias current corresponding to the fourth signal.

    VOLTAGE GENERATION CIRCUIT HAVING A TEMPERATURE COMPENSATION FUNCTION
    3.
    发明申请
    VOLTAGE GENERATION CIRCUIT HAVING A TEMPERATURE COMPENSATION FUNCTION 审中-公开

    公开(公告)号：US20180181155A1

    公开(公告)日：2018-06-28

    申请号：US15671197

    申请日：2017-08-08

    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

    Inventor： Shinichi IIZUKA ,  Jong Ok HA ,  Jeong Hoon KIM

    IPC: G05F3/24 ,  H03K3/011 ,  G05F1/46 ,  G05F1/567

    CPC classification number: G05F3/245 ,  G05F1/462 ,  G05F1/567 ,  H03K3/011

    Abstract: A voltage generation circuit having a temperature compensation function includes a first voltage generation circuit, a second voltage generation circuit, an output voltage control circuit, and a voltage selection circuit. The first voltage generation circuit is configured to generate a first voltage having a zero temperature coefficient, determined in response to a first control signal. The second voltage generation circuit is configured to generate a second voltage having a positive temperature coefficient, determined in response to a second control signal. The output voltage control circuit is configured to control an output of one of the first voltage and the second voltage in response to an operating mode. The voltage selection circuit is configured to select the first voltage or the second voltage in response to the output voltage control circuit.

    POWER SUPPLY SWITCH CIRCUIT AND OPERATING METHOD THEREOF
    6.
    发明申请
    POWER SUPPLY SWITCH CIRCUIT AND OPERATING METHOD THEREOF 有权

    公开(公告)号：US20230038876A1

    公开(公告)日：2023-02-09

    申请号：US17858643

    申请日：2022-07-06

    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

    Inventor： Youngwong JANG ,  Jeonghoon KIM ,  Jongok HA ,  Shinichi IIZUKA ,  Hyejin LEE

    IPC: H03K17/687 ,  H03K17/16 ,  H03K19/00 ,  H03K19/20

    Abstract: A power source switch circuit and an operation method thereof are provided. The power source switch circuit may include a switch circuit that includes a first switch configured switch a supply of a voltage from a first power supply circuit to a power supply terminal of a power amplifier, and a second switch configured to switch a supply of a voltage from a second power supply circuit to the power supply terminal of the power amplifier; and a switch controller configured to control the switch circuit to set the first switch and the second switch in a turned-on state during a first period when the first switch is turned off and the second switch is turned on.

    SERIES INDUCTOR ARRAY IMPLEMENTED AS A SINGLE WINDING AND FILTER INCLUDING THE SAME
    8.
    发明申请
    SERIES INDUCTOR ARRAY IMPLEMENTED AS A SINGLE WINDING AND FILTER INCLUDING THE SAME 有权
    串联电感器阵列作为单个绕线和滤波器实现

    公开(公告)号：US20140167884A1

    公开(公告)日：2014-06-19

    申请号：US13779685

    申请日：2013-02-27

    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

    Inventor： Young Jean SONG ,  Ki Joong KIM ,  Myeong Woo HAN ,  Shinichi IIZUKA ,  Ju Young PARK ,  Youn Suk KIM ,  Jun Goo WON

    IPC: H01F17/00 ,  H03H7/01

    CPC classification number: H01F17/0013 ,  H01F2017/0026 ,  H03H7/0115 ,  H03H7/1758 ,  H03H2001/0092

    Abstract: There are provided a series inductor array implemented as a single winding capable of decreasing a layout area for providing a plurality of inductors, and a filter including the same, the series inductor array including a winding structure having both ends, and one or more terminal parts electrically connected to a region between the both ends of the winding structure to form an external electrical connection, wherein the winding structure has a structure in which a plurality of inductors having inductance formed in regions of the winding structure disposed between the both ends thereof and the terminal parts or between the terminal parts are connected in series.

    Abstract translation: 提供了一种实现为能够减小用于提供多个电感器的布局面积的单绕组的串联电感器阵列，以及包括该电感器的滤波器，串联电感器阵列包括具有两端的绕组结构和一个或多个端子部 电连接到所述绕组结构的两端之间的区域以形成外部电连接，其中所述绕组结构具有这样的结构，其中在所述绕组结构的两端和所述绕组结构之间形成有在所述绕组结构的区域中形成的电感的多个电感器， 端子部件或端子部件之间串联连接。

    POWER SUPPLY SWITCH CIRCUIT
    9.
    发明申请
    POWER SUPPLY SWITCH CIRCUIT 有权

    公开(公告)号：US20230109988A1

    公开(公告)日：2023-04-13

    申请号：US17862466

    申请日：2022-07-12

    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

    Inventor： Youngwong JANG ,  Jeonghoon KIM ,  Shinichi IIZUKA ,  Jongok HA ,  Hyejin LEE

    IPC: H03K17/687 ,  H02M3/07 ,  H03F3/24

    Abstract: A power supply switch circuit includes a first switch configured to supply a first power supply voltage to a power supply terminal of a power amplifier, a control voltage generator configured to compare a first voltage of the power supply terminal with a predetermined first reference voltage to generate a first control voltage higher than the first power supply voltage, and a switch controller configured to use the first control voltage to generate a switching driving signal controlling the first switch.

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