Bias circuit and power amplifier having the same

    公开(公告)号:US10027320B2

    公开(公告)日:2018-07-17

    申请号:US14886804

    申请日:2015-10-19

    摘要: A bias circuit providing different bias voltages depending on a power mode through a simple circuit, and a power amplifier having the same are provided. The bias circuit and the power amplifier include a bias setting unit configured to vary a voltage level of a control signal controlling a bias voltage according to an operation of a first transistor being switched-off in a high power mode and switched-on in a low power mode. A bias supplying unit includes a bias supplying transistor switched based on the control signal, to supply the bias voltage having a voltage level according to a switching operation of the bias supplying transistor.

    RADIO FREQUENCY INPUT CIRCUIT WITH ESD PROTECTION FUNCTION
    4.
    发明申请
    RADIO FREQUENCY INPUT CIRCUIT WITH ESD PROTECTION FUNCTION 有权
    具有ESD保护功能的无线电频率输入电路

    公开(公告)号:US20140146425A1

    公开(公告)日:2014-05-29

    申请号:US13764555

    申请日:2013-02-11

    IPC分类号: H02H9/04

    CPC分类号: H02H9/044 H01L27/0255

    摘要: There is provided a radio frequency input circuit including a first direct current blocking unit provided between an input terminal and an input circuit unit and blocking a direct current voltage introduced through the input terminal, a first ESD protection circuit unit provided in parallel with the first direct current blocking unit and forming a bypass path according to an ESD voltage introduced through the input terminal, and a ground circuit unit provided between a first connection node between the first direct current blocking unit and the input circuit unit, and a ground, and forming a ground path according to the ESD voltage.

    摘要翻译: 提供了一种射频输入电路,包括设置在输入端子和输入电路单元之间并阻塞通过输入端子引入的直流电压的第一直流阻断单元,与第一直流电源并联设置的第一ESD保护电路单元 电流阻断单元,并根据通过输入端子引入的ESD电压形成旁路路径;以及接地电路单元,设置在第一直流阻断单元和输入电路单元之间的第一连接节点和地之间,并形成 接地路径根据ESD电压。

    Power detection circuit and RF signal amplification circuit having the same
    5.
    发明授权
    Power detection circuit and RF signal amplification circuit having the same 有权
    功率检测电路和RF信号放大电路具有相同的功能

    公开(公告)号:US09479133B2

    公开(公告)日:2016-10-25

    申请号:US14452138

    申请日:2014-08-05

    摘要: The present invention relates to a power detection circuit and an RF signal amplification circuit having the same. According to an embodiment of the present invention, a power detection circuit including a coupling unit adjacent to an RF matching inductor to extract induced power; a rectification unit for rectifying the signal output from the coupling unit to output the rectified signal; a slope adjustment unit connected between an output terminal of the rectification unit and a ground and adjusting a voltage slope for power detection by changing the output signal of the output terminal of the rectification unit according to changes in internal impedance; and a smoothing unit for receiving the output signal of the output terminal of the rectification unit to smooth the received signal into a DC voltage for power detection using the voltage slope is provided. Further, an RF signal amplification circuit having the same is provided.

    摘要翻译: 本发明涉及功率检测电路和具有该功率检测电路的RF信号放大电路。 根据本发明的实施例,一种功率检测电路,包括与RF匹配电感器相邻的耦合单元以提取感应功率; 整流单元,用于整流从耦合单元输出的信号以输出整流信号; 斜坡调整单元,连接在整流单元的输出端和地之间,并根据内部阻抗的变化改变整流单元的输出端的输出信号,调整功率检测的电压斜率; 以及平滑单元,用于接收整流单元的输出端子的输出信号,以使接收的信号平滑到用于使用电压斜率的功率检测的直流电压。 此外,提供具有该RF信号放大电路的RF信号放大电路。

    Bias circuit and amplifier controlling bias voltage
    6.
    发明授权
    Bias circuit and amplifier controlling bias voltage 有权
    偏置电路和放大器控制偏置电压

    公开(公告)号:US09148095B2

    公开(公告)日:2015-09-29

    申请号:US13950906

    申请日:2013-07-25

    摘要: There are provided a bias circuit and an amplifier controlling a bias voltage, the bias circuit and the amplifier including a control voltage generating unit generating a control voltage using a reference voltage, a bias voltage generating unit generating a bias voltage according to the control voltage, and a voltage drop unit dropping the bias voltage from the bias voltage generating unit to a base voltage so as to provide the base voltage to an amplifying unit, wherein the control voltage generating unit controls the control voltage according to an amplitude of a high-frequency signal input to the amplifying unit.

    摘要翻译: 提供偏置电路和控制偏置电压的放大器,偏置电路和放大器包括使用参考电压产生控制电压的控制电压产生单元,根据控制电压产生偏置电压的偏置电压产生单元, 以及电压降单元将偏置电压产生单元的偏置电压降低到基极电压,以向放大单元提供基极电压,其中控制电压产生单元根据高频振幅控制控制电压 信号输入到放大单元。

    Series inductor array implemented as a single winding and filter including the same
    7.
    发明授权
    Series inductor array implemented as a single winding and filter including the same 有权
    串联电感器阵列实现为单绕组和滤波器,包括它们

    公开(公告)号:US09147513B2

    公开(公告)日:2015-09-29

    申请号:US13779685

    申请日:2013-02-27

    IPC分类号: H01F17/00 H03H7/01 H03H1/00

    摘要: 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.

    摘要翻译: 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。

    Radio frequency input circuit with ESD protection function
    8.
    发明授权
    Radio frequency input circuit with ESD protection function 有权
    射频输入电路具有ESD保护功能

    公开(公告)号:US09118176B2

    公开(公告)日:2015-08-25

    申请号:US13764555

    申请日:2013-02-11

    IPC分类号: H02H9/00 H02H9/04

    CPC分类号: H02H9/044 H01L27/0255

    摘要: There is provided a radio frequency input circuit including a first direct current blocking unit provided between an input terminal and an input circuit unit and blocking a direct current voltage introduced through the input terminal, a first ESD protection circuit unit provided in parallel with the first direct current blocking unit and forming a bypass path according to an ESD voltage introduced through the input terminal, and a ground circuit unit provided between a first connection node between the first direct current blocking unit and the input circuit unit, and a ground, and forming a ground path according to the ESD voltage.

    摘要翻译: 提供了一种射频输入电路,包括设置在输入端子和输入电路单元之间并阻塞通过输入端子引入的直流电压的第一直流阻断单元,与第一直流电源并联设置的第一ESD保护电路单元 电流阻断单元,并根据通过输入端子引入的ESD电压形成旁路路径;以及接地电路单元,设置在第一直流阻断单元和输入电路单元之间的第一连接节点和地之间,并形成 接地路径根据ESD电压。

    Bias circuit and power amplifier with selection function of power mode
    9.
    发明授权
    Bias circuit and power amplifier with selection function of power mode 有权
    偏置电路和功率放大器,具有电源模式选择功能

    公开(公告)号:US09054650B2

    公开(公告)日:2015-06-09

    申请号:US14035924

    申请日:2013-09-24

    IPC分类号: H03F3/04 H03F1/30 H03F3/21

    CPC分类号: H03F1/301 H03F1/302 H03F3/21

    摘要: There are provided a bias circuit and a power amplifier. The bias circuit includes a first temperature compensating unit connected between an operating voltage terminal and a ground and operating according to a reference voltage to generate a turn-on voltage, a second temperature compensating unit connected between a reference voltage terminal and the ground and operating according to the turn-on voltage to generate a control voltage, a power mode selecting unit selecting one of a high power mode and a low power mode and providing an additional current to the first temperature compensating unit at the time of selecting the low power mode to increase the turn-on voltage, and a bias voltage generating unit generating a bias voltage according to the control voltage, wherein the control voltage and the bias voltage are decreased according to the increase in the turn-on voltage.

    摘要翻译: 提供偏置电路和功率放大器。 偏置电路包括连接在工作电压端子和地之间的第一温度补偿单元,并根据参考电压进行工作以产生导通电压;第二温度补偿单元,连接在参考电压端子和地之间,并按照 到导通电压以产生控制电压;功率模式选择单元,在选择低功率模式时选择高功率模式和低功率模式之一并向第一温度补偿单元提供附加电流, 增加接通电压,以及偏置电压产生单元,根据控制电压产生偏置电压,其中控制电压和偏置电压根据接通电压的增加而减小。

    Power amplifier
    10.
    发明授权
    Power amplifier 有权
    功率放大器

    公开(公告)号:US08994453B2

    公开(公告)日:2015-03-31

    申请号:US13764080

    申请日:2013-02-11

    IPC分类号: H03F3/21 H03F1/32 H03F3/19

    摘要: There is provided a power amplifier including a bias circuit unit generating a bias voltage of an amplifying unit, a voltage drop unit disposed between the bias circuit unit and the amplifying unit to drop the bias voltage to a base voltage, and a bypass circuit unit including an impedance element connected to the voltage drop unit in parallel and performing a switching operation according to a magnitude of an input signal.

    摘要翻译: 提供了一种功率放大器,包括产生放大单元的偏置电压的偏置电路单元,设置在偏置电路单元和放大单元之间以将偏置电压降低到基极电压的电压降单元,以及旁路电路单元,包括 阻抗元件并联连接到电压降单元,并根据输入信号的幅度执行开关操作。