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    Output match directional coupler
    4.
    发明授权
    Output match directional coupler 有权
    输出匹配定向耦合器

    公开(公告)号：US09276552B2

    公开(公告)日：2016-03-01

    申请号：US14497471

    申请日：2014-09-26

    Applicant: RF Micro Devices, Inc.

    Inventor： David E. Jones

    IPC: H01P5/18 ,  H03H7/40 ,  H03F1/56 ,  H03F3/189 ,  H03F3/195 ,  H03H7/09

    CPC classification number: H03H7/40 ,  H03F1/565 ,  H03F3/189 ,  H03F3/195 ,  H03F2200/387 ,  H03F2200/423 ,  H03F2200/451 ,  H03F2200/541

    Abstract: A directional coupler that provides directional coupling and an impedance transformation is disclosed. In one embodiment, the directional coupler includes a low pass filter having a filter inductor that is coupled between an input port and an output port and a filter capacitor coupled between the output port and ground. The directional coupler also includes detector circuitry wherein the filter inductor is magnetically coupled to a detector inductor in the detector circuitry such that current passing through the filter inductor generates a detector current through the detector inductor. Furthermore, the low pass filter and the detector circuitry cooperate to transform a first impedance presented at the output port to a second impedance presented at the input port. Accordingly, the filter inductor is used in the low pass filter to provide an impedance transformation so as to operate with the detector circuitry to provide a detector current for directional coupling.

    Abstract translation: 公开了一种提供定向耦合和阻抗变换的定向耦合器。 在一个实施例中，定向耦合器包括低通滤波器，其具有耦合在输入端口和输出端口之间的滤波电感器以及耦合在输出端口和地之间的滤波电容器。 定向耦合器还包括检测器电路，其中滤波电感器磁耦合到检测器电路中的检测器电感器，使得通过滤波电感器的电流产生通过检测器电感器的检测器电流。 此外，低通滤波器和检测器电路协作以将在输出端口处呈现的第一阻抗变换为在输入端口处呈现的第二阻抗。 因此，滤波电感器用于低通滤波器以提供阻抗变换，以便与检测器电路一起工作以提供用于定向耦合的检测器电流。

    Dual primary switched transformer for impedance and power scaling
    6.
    发明授权
    Dual primary switched transformer for impedance and power scaling 有权
    用于阻抗和功率缩放的双主开关变压器

    公开(公告)号：US08786372B2

    公开(公告)日：2014-07-22

    申请号：US13657300

    申请日：2012-10-22

    Applicant: RF Micro Devices, Inc.

    Inventor： Wayne D. Tattershall ,  David E. Jones

    IPC: H03F3/04

    CPC classification number: H03F1/0277 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/414 ,  H03F2200/541

    Abstract: This application reduces the power of series combined transformers and of parallel combined transformers while maintaining efficiency. In one embodiment, a series combined transformer is provided with a switch between a first primary inductor and a second primary inductor, in order to provide at least two modes. In a high power mode, the switch is open and the series combined transformer operates normally. In a low power mode, the switch is closed, one amplifier from a first differential amplifier pair is shut down, one amplifier from a second differential pair is shut down, and the series combined transformer operates efficiently in a low power mode.

    Abstract translation: 该应用降低了串联组合变压器和并联组合变压器的功率，同时保持了效率。 在一个实施例中，串联组合变压器在第一初级电感器和第二初级电感器之间设置有开关，以提供至少两种模式。 在高功率模式下，开关断开，串联组合变压器正常工作。 在低功耗模式下，开关闭合，来自第一差分放大器对的一个放大器关闭，来自第二差分对的一个放大器关闭，并且串联组合变压器以低功率模式有效地工作。

    DUAL PRIMARY SWITCHED TRANSFORMER FOR IMPEDANCE AND POWER SCALING
    10.
    发明申请
    DUAL PRIMARY SWITCHED TRANSFORMER FOR IMPEDANCE AND POWER SCALING 有权
    双主开关变压器，用于阻抗和功率放大

    公开(公告)号：US20130099858A1

    公开(公告)日：2013-04-25

    申请号：US13657300

    申请日：2012-10-22

    Applicant: RF MICRO DEVICES, INC.

    Inventor： Wayne D. Tattershall ,  David E. Jones

    IPC: H03F1/02 ,  H03F3/68 ,  H03F3/45

    CPC classification number: H03F1/0277 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/414 ,  H03F2200/541

    Abstract: This application reduces the power of series combined transformers and of parallel combined transformers while maintaining efficiency. In one embodiment, a series combined transformer is provided with a switch between a first primary inductor and a second primary inductor, in order to provide at least two modes. In a high power mode, the switch is open and the series combined transformer operates normally. In a low power mode, the switch is closed, one amplifier from a first differential amplifier pair is shut down, one amplifier from a second differential pair is shut down, and the series combined transformer operates efficiently in a low power mode.

    Abstract translation: 该应用降低了串联组合变压器和并联组合变压器的功率，同时保持了效率。 在一个实施例中，串联组合变压器在第一初级电感器和第二初级电感器之间设置有开关，以提供至少两种模式。 在高功率模式下，开关断开，串联组合变压器正常工作。 在低功耗模式下，开关闭合，来自第一差分放大器对的一个放大器关闭，来自第二差分对的一个放大器关闭，并且串联组合变压器以低功率模式有效地工作。

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